Cyanogenmod ROM Samsung Galaxy S4 (Canada) (SGH-I337M) (jfltecan)

Quick Info

Download CyanogenMod

Download (nightly build)
CyanogenMod 11 (Android 4.4-4.4.4 (KitKat))

Main sections for Samsung Galaxy S4 (Canadian) (“jfltecan”)

1. Information about Samsung Galaxy S4 (Canadian) (“jfltecan”)
2. CyanogenMod install guide for Samsung Galaxy S4 (Canadian) (“jfltecan”)
3. Build CyanogenMod and CyanogenMod Recovery guide

Notes

Note: Deprecated in favor of unified build

As of CM 11, this carrier specific device has been deprecated in favor of a new unified device: jflte. Please visit the jflte page for information on building and installing the latest version of CyanogenMod. This page exists in case you would like to reference any device-specific unlock instructions, download a recovery, or build an older release of CyanogenMod, for example, CM 10.2.

Special boot modes

• Recovery: Vol Up & Home & Power
• Download: Vol Down & Home & Power

Source code

Device	http://www.github.com/cyanogenmod/android_device_samsung_jfltecan
Kernel	http://www.github.com/cyanogenmod/android_kernel_samsung_jf

Galaxy S4 (Canadian) Specifications

Codename:	jfltecan
Also known as:	SGH-I337M
Vendor:	Samsung
Release date:	2013 April
Carrier:	Bell, Rogers, Telus
Type:	phone
GSM freq:	2.5G GSM/GPRS/EDGE – 850, 900, 1800, 1900 MHz 3G HSPA+ – 850, 900, 1900, 2100 MHz
LTE freq:	700, 800, 1700, 1800, 1900, 2600 MHz
Platform:	Qualcomm Snapdragon 600
CPU:	1.9 GHz quad-core Krait 300
GPU:	Adreno 320
RAM:	2GB
Weight:	130g
Dimensions:	136.6 mm (5.38 in) H 69.8 mm (2.75 in) W 7.9 mm (0.31 in) D
Screen size:	127 mm (5.0 in)
Resolution:	1920×1080
Screen density:	440 ppi
Screen type:	Pentile RGBG Full HD Super AMOLED
Internal storage:	16/32/64GB
SD Card:	up to 64GB
Bluetooth:	4.0
Wi-Fi:	802.11a/b/g/n/ac
Main camera:	13 MP, 1080p Full HD Video Recording @ 30fps, flash: LED
Secondary camera:	2 MP 1080p HD Video Recording @ 30fps
Power:	2600 mAh Li-ion, removable
Peripherals:	DLNA, Miracast, GPS/GLONASS, NFC, Infrared Port, USB 2.0 (Micro-B port, USB charging), USB On-The-Go 1.3, MHL 2.0, HDMI (TV-out, via MHL A\V link), Accelerometer, Barometer, Gesture sensor, Gyroscope, Hall effect sensor, Hygrometer, Magnetometer, Proximity sensor, RGB light sensor, Thermometer
CM supported:	10.1, 10.2, 11

How to Install CyanogenMod on the Samsung Galaxy S4 (Canadian) (jfltecan)

Important Notes

Recovery install ODIN==Installing a custom recovery==
Samsung devices come with a unique boot mode called Download Mode which is very similar to Fastboot Mode on some devices with unlocked bootloaders. Heimdall is a cross-platform, open source tool for interfacing with Download Mode on Samsung devices. The preferred method of installing a custom recovery is through this boot mode. Rooting the stock firmware is neither recommended nor necessary.

1. Download and install the Heimdall Suite
   • Windows: Extract the Heimdall suite and take note of the directory holding heimdall.exe. You can verify Heimdall is working by opening a command prompt in this directory and typing heimdall version. If you receive an error, be sure that you have the Microsoft Visual C++ 2012 Redistributable Package (x86/32bit) installed on your computer.
   • Linux: Pick the appropriate installation package based on your distribution. The -frontend packages are not required for this guide. After installation, heimdall should be available from the terminal; type heimdall version to verify installation succeeded.
   • Mac: Install the dmg package. After installation, heimdall should be available from the terminal; type heimdall version to verify installation succeeded.
   • Building from source: The source code for the Heimdall Suite is available on Github. For more details about how to compile the Heimdall Suite, please refer to the README file on Github under the relevant operating system directory. You can also refer to the Install and compile Heimdall instructions on this wiki.
2. Download recovery — you can directly download a recovery image using the link below, or visit TWRP site to check for the latest version of recovery for your device (if your device can be found there). For general info about recoveries click here.

   Recovery: Download

   md5: 7c31beb36bc6f0f8284b8fb932542d55

3. Power off the Galaxy S4 (Canadian) and connect the USB adapter to the computer but not to the Galaxy S4 (Canadian), yet.
4. Boot the Galaxy S4 (Canadian) into download mode. Vol Down & Home & Power Accept the disclaimer on the device. Then, insert the USB cable into the device.
5. Windows (only) driver installation – Skip this step if you are using Linux or Mac

   A more complete set of the following instructions can be found in the Zadig User Guide.

   1. Run zadig.exe from the Drivers folder of the Heimdall Suite.
   2. Choose Options » List All Devices from the menu.
   3. Select Samsung USB Composite Device or MSM8x60 or Gadget Serial or Device Name from the drop down menu. (If nothing relevant appears, try uninstalling any Samsung related Windows software, like Samsung Windows drivers and/or Kies).
   4. Click Replace Driver (having selecting “Install Driver” from the drop down list built into the button).
   5. If you are prompted with a warning that the installer is unable to verify the publisher of the driver, select Install this driver anyway. You may receive two more prompts about security. Select the options that allow you to carry on.
6. At this point, familiarize yourself with the Flashing with heimdall notes below so that you are prepared for any strange behaviour if it occurs.
7. On the computer, open a terminal (or Command Prompt on Windows) in the directory where the recovery image is located and type:

   heimdall flash --RECOVERY recovery.img --no-reboot

   Tip: The file may not be named identically to what’s in this command. If the file is wrapped in a zip or tar file, extract the file first, because heimdall isn’t going to do it for you.

8. A blue transfer bar will appear on the device showing the recovery being transferred.
9. Unplug the USB cable from your device.
   • NOTE: Be sure to reboot into recovery immediately after having installed the custom recovery. Otherwise the custom recovery will be overwritten and the device will reboot (appearing as though your custom recovery failed to install).
10. Manually reboot the phone into recovery mode by performing the following. Vol Up & Home & Power
11. The Galaxy S4 (Canadian) now has a custom recovery installed. Continue to the next section.

Installing CyanogenMod from recovery

1. Make sure your computer has working adb.
2. Download the CyanogenMod build package for your device that you’d like to install to your computer.

   Optional: Download 3rd party applications packages, like Google Apps which are necessary to download apps from Google Play.

3. Place the CyanogenMod .zip package, as well as any optional .zip packages, on the root of /sdcard:
   • Using adb: adb push filename.zip /sdcard/

   Note: You can copy the .zip packages to your device using any method you are familiar with. The adb method is used here because it is universal across all devices and works in both Android and recovery mode. If you are in recovery mode, you may need to ensure /sdcard (sometimes called Internal Storage) is mounted by checking its status in the Mounts menu. If you have booted regularly, USB debugging must be enabled.

4. If you are not already in recovery, boot to recovery mode now.
   • Vol Up & Home & Power
5. In Team Win Recovery Project, select menu choices by tapping on the appropriately labelled button.
6. Optional (Recommended): Select the Backup button to create a backup.
7. Select Wipe and then Factory Reset.
8. Select Install.
9. Navigate to /sdcard and select the CyanogenMod .zip package.
10. Follow the on-screen notices to install the package.
11. Optional: Install any additional packages you wish using the same method (if you are installing multiple packages, install CyanogenMod first and then install any subsequent packages on top of it).
12. Once installation has finished, return to the main menu and select Reboot, then System. The device will now boot into CyanogenMod.

How To Build CyanogenMod For Samsung Galaxy S4 (Canadian) (jfltecan)

Introduction

These instructions will hopefully assist you to start with a stock Galaxy S4 (Canadian), unlock the bootloader (if necessary), and then download the required tools as well as the very latest source code for CyanogenMod (based on Google’s Android operating system). Using these, you can build both CyanogenMod and CyanogenMod Recovery image from source code, and then install them both to your device.

It is difficult to say how much experience is necessary to follow these instructions. While this guide is certainly not for the very very very uninitiated, these steps shouldn’t require a PhD in software development either. Some readers will have no difficulty and breeze through the steps easily. Others may struggle over the most basic operation. Because people’s experiences, backgrounds, and intuitions differ, it may be a good idea to read through just to ascertain whether you feel comfortable or are getting over your head.

Remember, you assume all risk of trying this, but you will reap the rewards! It’s pretty satisfying to boot into a fresh operating system you baked at home :) And once you’re an Android-building ninja, there will be no more need to wait for “nightly” builds from anyone. You will have at your fingertips the skills to build a full operating system from code to a running device, whenever you want. Where you go from there– maybe you’ll add a feature, fix a bug, add a translation, or use what you’ve learned to build a new app or port to a new device– or maybe you’ll never build again– it’s all really up to you.

What you’ll need

• A Galaxy S4 (Canadian)
• A relatively recent computer (Linux, OS X, or Windows) with a reasonable amount of RAM and about 100 GB of free storage (more if you enable ccache or build for multiple devices). The less RAM you have, the longer the build will take (aim for 8 GB or more). Using SSDs results in considerably faster build times than traditional hard drives.
• A USB cable compatible with the Galaxy S4 (Canadian) (typically micro USB, but older devices may use mini USB or have a proprietary cable)
• A decent internet connection & reliable electricity :)
• Some familiarity with basic Android operation and terminology. It would help if you’ve installed custom roms on other devices and are familiar with recovery. It may also be useful to know some basic command line concepts such as cd for “change directory”, the concept of directory hierarchies, that in Linux they are separated by /, etc.

If you are not accustomed to using Linux– this is an excellent chance to learn. It’s free– just download and run a virtual machine (VM) such as Virtualbox, then install a Linux distribution such as Ubuntu (AOSP vets Ubuntu as well). Any recent 64-bit version should work great, but the latest is recommended.

Using a VM allows Linux to run as a guest inside your host computer– a computer in a computer, if you will. If you hate Linux for whatever reason, you can always just uninstall and delete the whole thing. (There are plenty of places to find instructions for setting up Virtualbox with Ubuntu, so I’ll leave it to you to do that.)

So let’s begin!

Build CyanogenMod and CyanogenMod Recovery

Prepare the Build Environment

Install the SDK

If you have not previously installed adb and fastboot, install the Android SDK. “SDK” stands for Software Developer Kit, and it includes useful tools that you can use to flash software, look at the system logs in real time, grab screenshots, and more– all from your computer.

Install the Build Packages

Several “build packages” are needed to build CyanogenMod. You can install these using the package manager of your choice.

For both 32-bit & 64-bit systems, you’ll need:

bc bison build-essential curl flex git gnupg gperf libesd0-dev liblz4-tool libncurses5-dev libsdl1.2-dev libwxgtk2.8-dev libxml2 libxml2-utils lzop maven openjdk-7-jdk pngcrush schedtool squashfs-tools xsltproc zip zlib1g-dev

In addition to the above, for 64-bit systems, get these:

g++-multilib gcc-multilib lib32ncurses5-dev lib32readline-gplv2-dev lib32z1-dev

For Ubuntu 15.10 (wily) and newer, substitute:

• lib32readline-gplv2-dev → lib32readline6-dev

For Ubuntu 16.04 (xenial) and newer, substitute (additionally see java notes below):

• libwxgtk2.8-dev → libwxgtk3.0-dev
• openjdk-7-jdk → openjdk-8-jdk

Java versions: Different versions of CyanogenMod require different versions of the JDK (Java Development Kit):

• CyanogenMod 7 – 9: Sun/Oracle Java SE 1.6
• CyanogenMod 10.1: Sun/Oracle Java SE 1.6 or 1.7
• CyanogenMod 10.2 – 11.0: Sun/Oracle Java SE 1.6 or 1.7 (OpenJDK 1.7 works fine, but the build system will display a warning)
• CyanogenMod 12.0 – 13.0: OpenJDK 1.7 (see note about OpenJDK 1.8 below)
• CyanogenMod 14.1: OpenJDK 1.8

Ubuntu 16.04 (Xenial Xerus) or newer and OpenJDK: Since OpenJDK 1.7 was removed from the official Ubuntu repositories, you have a couple options:

1. Obtain OpenJDK 1.7 from the openjdk-r PPA
2. Enable experimental OpenJDK 1.8 support in CyanogenMod 13.0 (not available in earlier version). To enable OpenJDK 1.8 support, add this line to your $HOME/.bashrc file: export EXPERIMENTAL_USE_JAVA8=true.

Also see http://source.android.com/source/initializing.html which lists needed packages.

Create the directories

You will need to set up some directories in your build environment.

To create them:

$ mkdir -p ~/bin
$ mkdir -p ~/android/system

Install the repo command

Enter the following to download the “repo” binary and make it executable (runnable):

$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo

Put the ~/bin directory in your path of execution

In recent versions of Ubuntu, ~/bin should already be in your PATH. You can check this by opening ~/.profile with a text editor and verifying the following code exists (add it if it is missing):

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

Initialize the CyanogenMod source repository

Enter the following to initialize the repository:

Note: Make sure the cm branch entered here is the one you wish to build and is supported on your device.

$ cd ~/android/system/
$ repo init -u https://github.com/CyanogenMod/android.git -b cm-13.0

Download the source code

To start the download of all the source code to your computer:

$ repo sync

The CM manifests include a sensible default configuration for repo, which we strongly suggest you use (i.e. don’t add any options to sync). For reference, our default values are -j 4 and -c. The -j 4 part means that there will be four simultaneous threads/connections. If you experience problems syncing, you can lower this to -j 3 or -j 2. -c will ask repo to pull in only the current branch, instead of the entire CM history.

Prepare to wait a long time while the source code downloads.

Get prebuilt apps (CM11 and below)

Next,

$ cd ~/android/system/vendor/cm

then enter:

$ ./get-prebuilts

You won’t see any confirmation- just another prompt. But this should cause some prebuilt apps to be loaded and installed into the source code. Once completed, this does not need to be done again.

Prepare the device-specific code

After the source downloads, ensure you are in the root of the source code (cd ~/android/system), then type:

$ source build/envsetup.sh
$ breakfast jfltecan

This will download the device specific configuration and kernel source for your device. An alternative to using the breakfast command is to build your own local manifest. To do this, you will need to locate your device on CyanogenMod’s GitHub and list all of the repositories defined in cm.dependencies in your local manifest.

Extract proprietary blobs

Now ensure that your Galaxy S4 (Canadian) is connected to your computer via the USB cable and that you are in the ~/android/system/device/samsung/jfltecan directory (you can cd ~/android/system/device/samsung/jfltecan if necessary). Then run the extract-files.sh script:

$ ./extract-files.sh

You should see the proprietary files (aka “blobs”) get pulled from the device and moved to the ~/android/system/vendor/samsung directory. If you see errors about adb being unable to pull the files, adb may not be in the path of execution. If this is the case, see the adb page for suggestions for dealing with “command not found” errors.

Turn on caching to speed up build

You can speed up subsequent builds by adding

export USE_CCACHE=1

to your ~/.bashrc file (what’s a .bashrc file?). Then, specify the amount of disk space to dedicate to ccache by typing this from the top of your Android tree:

prebuilts/misc/linux-x86/ccache/ccache -M 50G

where 50G corresponds to 50GB of cache. This only needs to be run once and the setting will be remembered. Anywhere in the range of 25GB to 100GB will result in very noticeably increased build speeds (for instance, a typical 1hr build time can be reduced to 20min). If you’re only building for one device, 25GB-50GB is fine. If you plan to build for several devices that do not share the same kernel source, aim for 75GB-100GB. This space will be permanently occupied on your drive, so take this into consideration. See more information about ccache on Google’s android build environment initialization page.

Start the build

Time to start building! So now type:

$ croot
$ brunch jfltecan

The build should begin.

If the build breaks…

• If you experience this not-enough-memory-related error…

ERROR: signapk.jar failed: return code 1make: *** [out/target/product/jfltecan/cm_jfltecan-ota-eng.root.zip] Error 1

…you may want to make the following change to ~/android/system/build/tools/releasetools/common.py:

Search for instances of -Xmx2048m (it should appear either under OPTIONS.java_args or near usage of signapk.jar), and replace it with -Xmx1024m or -Xmx512m.

Then start the build again (with brunch).

• If you see a message about things suddenly being “killed” for no reason, your (virtual) machine may have run out of memory or storage space. Assign it more resources and try again.

Install the build

Assuming the build completed without error (it will be obvious when it finishes), type:

$ cd $OUT

in the same terminal window that you did the build. Here you’ll find all the files that were created. The stuff that will go in /system is in a folder called system. The stuff that will become your ramdisk is in a folder called root. And your kernel is called… kernel.

But that’s all just background info. The two files we are interested in are (1) recovery.img, which contains CyanogenMod Recovery, and (2) cm-13.0-20161224-UNOFFICIAL-jfltecan.zip, which is the CyanogenMod installation package.

Recovery install ODIN

Install CyanogenMod

Back to the $OUT directory on your computer– you should see a file that looks something like:

cm-13.0-20161224-UNOFFICIAL-jfltecan.zip

Now you can flash the cm...zip file above as usual via recovery mode. Before doing so, now is a good time to make a backup of whatever installation is currently running on the device in case something goes wrong with the flash attempt. While CyanogenMod Recovery doesn’t have a backup feature, there are other custom recoveries available that do. You can also use something like Titanium Backup (root required) as an alternative.

Success! So….what’s next?

You’ve done it! Welcome to the elite club of self-builders. You’ve built your operating system from scratch, from the ground up. You are the master/mistress of your domain… and hopefully you’ve learned a bit on the way and had some fun too.

Now that you’ve succeeded in building CyanogenMod for your device, here are some suggestions on what to do next.

Also, be sure to take a glance at the Dev Center on this wiki for all kinds of more detailed information about developer topics ranging from collecting logs, understanding what’s in the source code directories, submitting your own contributions, porting CyanogenMod to new devices, and a lot more.

Congrats again!

Content of this page is based on informations from wiki.cyanogenmod.org, under CC BY-SA 3.0 licence.

Cyanogenmod ROM Samsung Galaxy Note 3 LTE (hlte)

Quick Info

Check out Samsung Galaxy Note 3 LTE (“hlte”) with newer LineageOS software

Download CyanogenMod

Download (nightly build)
CyanogenMod 12.1 (Android 5.1 (Lollipop))

Main sections for Samsung Galaxy Note 3 LTE (“hlte”)

1. Information about Samsung Galaxy Note 3 LTE (“hlte”)
2. CyanogenMod install guide for Samsung Galaxy Note 3 LTE (“hlte”)
3. Build CyanogenMod and CyanogenMod Recovery guide

Notes

WARNING:

DO NOT USE THIS GUIDE ON VERIZON OR ATT DEVICES! These carriers enforce boot image signing and attempting to use this guide will end in misery/tears.

Special boot modes

• Recovery: Home & Volume Up & Power
• Download: Home & Volume Down & Power

Source code

Device	http://www.github.com/cyanogenmod/android_device_samsung_hlte
Kernel	http://www.github.com/cyanogenmod/android_kernel_samsung_hlte

Galaxy Note 3 LTE Specifications

Codename:	hlte
Vendor:	Samsung
Manufacturer:	Samsung
Release date:	25 Sep 2013
Type:	phablet
GSM freq:	N9005, N9002, N9006: HSDPA 850 / 900 / 1900 / 2100; N900W8: HSDPA 850 / 1900 / 2100
CDMA freq:	N9009: CDMA 800 / 1900
LTE freq:	N9005: LTE 800 / 850 / 900 / 1800 / 2100 / 2600; N900W8: LTE 700 / 1900 / 2100
Platform:	Qualcomm Snapdragon 800
CPU:	2.3 GHz quad-core msm8974 (Krait 400)
GPU:	Adreno 330
RAM:	3GB
Weight:	168 g (6.34 oz)
Dimensions:	151.2 mm (5.95 in) (h) 79.2 mm (3.12 in) (w) 8.3 mm (0.33 in) (d)
Screen size:	145 mm (5.7 in)
Resolution:	1920×1080
Screen density:	388 ppi
Internal storage:	16, 32, 64 GB
SD Card:	up to 64GB
Bluetooth:	4.0
Wi-Fi:	802.11 a/b/g/n
Main camera:	13 MP, 4128 x 3096 pixels, autofocus, LED flash
Secondary camera:	2 MP, 1080p@30fps
CM supported:	11, 12, 12.1

How to Install CyanogenMod on the Samsung Galaxy Note 3 LTE (hlte)

Important Notes

Installing a custom recovery

Samsung devices come with a unique boot mode called Download Mode which is very similar to Fastboot Mode on some devices with unlocked bootloaders. Heimdall is a cross-platform, open source tool for interfacing with Download Mode on Samsung devices. The preferred method of installing a custom recovery is through this boot mode. Rooting the stock firmware is neither recommended nor necessary.

1. Download and install the Heimdall Suite
   • Windows: Extract the Heimdall suite and take note of the directory holding heimdall.exe. You can verify Heimdall is working by opening a command prompt in this directory and typing heimdall version. If you receive an error, be sure that you have the Microsoft Visual C++ 2012 Redistributable Package (x86/32bit) installed on your computer.
   • Linux: Pick the appropriate installation package based on your distribution. The -frontend packages are not required for this guide. After installation, heimdall should be available from the terminal; type heimdall version to verify installation succeeded.
   • Mac: Install the dmg package. After installation, heimdall should be available from the terminal; type heimdall version to verify installation succeeded.
   • Building from source: The source code for the Heimdall Suite is available on Github. For more details about how to compile the Heimdall Suite, please refer to the README file on Github under the relevant operating system directory. You can also refer to the Install and compile Heimdall instructions on this wiki.
2. Download recovery — you can directly download a recovery image using the link below, or visit TWRP site to check for the latest version of recovery for your device (if your device can be found there). For general info about recoveries click here.

   Recovery: Download

   md5: 110f1d09136ea74d72acd1dbbd938635

3. Power off the Galaxy Note 3 LTE and connect the USB adapter to the computer but not to the Galaxy Note 3 LTE, yet.
4. Boot the Galaxy Note 3 LTE into download mode. Home & Volume Down & Power Accept the disclaimer on the device. Then, insert the USB cable into the device.
5. Windows (only) driver installation – Skip this step if you are using Linux or Mac

   A more complete set of the following instructions can be found in the Zadig User Guide.

   1. Run zadig.exe from the Drivers folder of the Heimdall Suite.
   2. Choose Options » List All Devices from the menu.
   3. Select Samsung USB Composite Device or MSM8x60 or Gadget Serial or Device Name from the drop down menu. (If nothing relevant appears, try uninstalling any Samsung related Windows software, like Samsung Windows drivers and/or Kies).
   4. Click Replace Driver (having selecting “Install Driver” from the drop down list built into the button).
   5. If you are prompted with a warning that the installer is unable to verify the publisher of the driver, select Install this driver anyway. You may receive two more prompts about security. Select the options that allow you to carry on.
6. At this point, familiarize yourself with the Flashing with heimdall notes below so that you are prepared for any strange behaviour if it occurs.
7. On the computer, open a terminal (or Command Prompt on Windows) in the directory where the recovery image is located and type:

   heimdall flash --RECOVERY recovery.img --no-reboot

   Tip: The file may not be named identically to what’s in this command. If the file is wrapped in a zip or tar file, extract the file first, because heimdall isn’t going to do it for you.

8. A blue transfer bar will appear on the device showing the recovery being transferred.
9. Unplug the USB cable from your device.
   • NOTE: Be sure to reboot into recovery immediately after having installed the custom recovery. Otherwise the custom recovery will be overwritten and the device will reboot (appearing as though your custom recovery failed to install).
10. Manually reboot the phone into recovery mode by performing the following. Home & Volume Up & Power
11. The Galaxy Note 3 LTE now has a custom recovery installed. Continue to the next section.

Installing CyanogenMod from recovery

1. Make sure your computer has working adb.
2. Download the CyanogenMod build package for your device that you’d like to install to your computer.

   Optional: Download 3rd party applications packages, like Google Apps which are necessary to download apps from Google Play.

3. Place the CyanogenMod .zip package, as well as any optional .zip packages, on the root of /sdcard:
   • Using adb: adb push filename.zip /sdcard/

   Note: You can copy the .zip packages to your device using any method you are familiar with. The adb method is used here because it is universal across all devices and works in both Android and recovery mode. If you are in recovery mode, you may need to ensure /sdcard (sometimes called Internal Storage) is mounted by checking its status in the Mounts menu. If you have booted regularly, USB debugging must be enabled.

4. If you are not already in recovery, boot to recovery mode now.
   • Home & Volume Up & Power
5. In Team Win Recovery Project, select menu choices by tapping on the appropriately labelled button.
6. Optional (Recommended): Select the Backup button to create a backup.
7. Select Wipe and then Factory Reset.
8. Select Install.
9. Navigate to /sdcard and select the CyanogenMod .zip package.
10. Follow the on-screen notices to install the package.
11. Optional: Install any additional packages you wish using the same method (if you are installing multiple packages, install CyanogenMod first and then install any subsequent packages on top of it).
12. Once installation has finished, return to the main menu and select Reboot, then System. The device will now boot into CyanogenMod.

How To Build CyanogenMod For Samsung Galaxy Note 3 LTE (hlte)

Introduction

These instructions will hopefully assist you to start with a stock Galaxy Note 3 LTE, unlock the bootloader (if necessary), and then download the required tools as well as the very latest source code for CyanogenMod (based on Google’s Android operating system). Using these, you can build both CyanogenMod and CyanogenMod Recovery image from source code, and then install them both to your device.

It is difficult to say how much experience is necessary to follow these instructions. While this guide is certainly not for the very very very uninitiated, these steps shouldn’t require a PhD in software development either. Some readers will have no difficulty and breeze through the steps easily. Others may struggle over the most basic operation. Because people’s experiences, backgrounds, and intuitions differ, it may be a good idea to read through just to ascertain whether you feel comfortable or are getting over your head.

Remember, you assume all risk of trying this, but you will reap the rewards! It’s pretty satisfying to boot into a fresh operating system you baked at home :) And once you’re an Android-building ninja, there will be no more need to wait for “nightly” builds from anyone. You will have at your fingertips the skills to build a full operating system from code to a running device, whenever you want. Where you go from there– maybe you’ll add a feature, fix a bug, add a translation, or use what you’ve learned to build a new app or port to a new device– or maybe you’ll never build again– it’s all really up to you.

What you’ll need

• A Galaxy Note 3 LTE
• A relatively recent computer (Linux, OS X, or Windows) with a reasonable amount of RAM and about 100 GB of free storage (more if you enable ccache or build for multiple devices). The less RAM you have, the longer the build will take (aim for 8 GB or more). Using SSDs results in considerably faster build times than traditional hard drives.
• A USB cable compatible with the Galaxy Note 3 LTE (typically micro USB, but older devices may use mini USB or have a proprietary cable)
• A decent internet connection & reliable electricity :)
• Some familiarity with basic Android operation and terminology. It would help if you’ve installed custom roms on other devices and are familiar with recovery. It may also be useful to know some basic command line concepts such as cd for “change directory”, the concept of directory hierarchies, that in Linux they are separated by /, etc.

If you are not accustomed to using Linux– this is an excellent chance to learn. It’s free– just download and run a virtual machine (VM) such as Virtualbox, then install a Linux distribution such as Ubuntu (AOSP vets Ubuntu as well). Any recent 64-bit version should work great, but the latest is recommended.

Using a VM allows Linux to run as a guest inside your host computer– a computer in a computer, if you will. If you hate Linux for whatever reason, you can always just uninstall and delete the whole thing. (There are plenty of places to find instructions for setting up Virtualbox with Ubuntu, so I’ll leave it to you to do that.)

So let’s begin!

Build CyanogenMod and CyanogenMod Recovery

Prepare the Build Environment

Install the SDK

If you have not previously installed adb and fastboot, install the Android SDK. “SDK” stands for Software Developer Kit, and it includes useful tools that you can use to flash software, look at the system logs in real time, grab screenshots, and more– all from your computer.

Install the Build Packages

Several “build packages” are needed to build CyanogenMod. You can install these using the package manager of your choice.

For both 32-bit & 64-bit systems, you’ll need:

bc bison build-essential curl flex git gnupg gperf libesd0-dev liblz4-tool libncurses5-dev libsdl1.2-dev libwxgtk2.8-dev libxml2 libxml2-utils lzop maven openjdk-7-jdk pngcrush schedtool squashfs-tools xsltproc zip zlib1g-dev

In addition to the above, for 64-bit systems, get these:

g++-multilib gcc-multilib lib32ncurses5-dev lib32readline-gplv2-dev lib32z1-dev

For Ubuntu 15.10 (wily) and newer, substitute:

• lib32readline-gplv2-dev → lib32readline6-dev

For Ubuntu 16.04 (xenial) and newer, substitute (additionally see java notes below):

• libwxgtk2.8-dev → libwxgtk3.0-dev
• openjdk-7-jdk → openjdk-8-jdk

Java versions: Different versions of CyanogenMod require different versions of the JDK (Java Development Kit):

• CyanogenMod 7 – 9: Sun/Oracle Java SE 1.6
• CyanogenMod 10.1: Sun/Oracle Java SE 1.6 or 1.7
• CyanogenMod 10.2 – 11.0: Sun/Oracle Java SE 1.6 or 1.7 (OpenJDK 1.7 works fine, but the build system will display a warning)
• CyanogenMod 12.0 – 13.0: OpenJDK 1.7 (see note about OpenJDK 1.8 below)
• CyanogenMod 14.1: OpenJDK 1.8

Ubuntu 16.04 (Xenial Xerus) or newer and OpenJDK: Since OpenJDK 1.7 was removed from the official Ubuntu repositories, you have a couple options:

1. Obtain OpenJDK 1.7 from the openjdk-r PPA
2. Enable experimental OpenJDK 1.8 support in CyanogenMod 13.0 (not available in earlier version). To enable OpenJDK 1.8 support, add this line to your $HOME/.bashrc file: export EXPERIMENTAL_USE_JAVA8=true.

Also see http://source.android.com/source/initializing.html which lists needed packages.

Create the directories

You will need to set up some directories in your build environment.

To create them:

$ mkdir -p ~/bin
$ mkdir -p ~/android/system

Install the repo command

Enter the following to download the “repo” binary and make it executable (runnable):

$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo

Put the ~/bin directory in your path of execution

In recent versions of Ubuntu, ~/bin should already be in your PATH. You can check this by opening ~/.profile with a text editor and verifying the following code exists (add it if it is missing):

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

Initialize the CyanogenMod source repository

Enter the following to initialize the repository:

Note: Make sure the cm branch entered here is the one you wish to build and is supported on your device.

$ cd ~/android/system/
$ repo init -u https://github.com/CyanogenMod/android.git -b cm-13.0

Download the source code

To start the download of all the source code to your computer:

$ repo sync

The CM manifests include a sensible default configuration for repo, which we strongly suggest you use (i.e. don’t add any options to sync). For reference, our default values are -j 4 and -c. The -j 4 part means that there will be four simultaneous threads/connections. If you experience problems syncing, you can lower this to -j 3 or -j 2. -c will ask repo to pull in only the current branch, instead of the entire CM history.

Prepare to wait a long time while the source code downloads.

Get prebuilt apps (CM11 and below)

Next,

$ cd ~/android/system/vendor/cm

then enter:

$ ./get-prebuilts

You won’t see any confirmation- just another prompt. But this should cause some prebuilt apps to be loaded and installed into the source code. Once completed, this does not need to be done again.

Prepare the device-specific code

After the source downloads, ensure you are in the root of the source code (cd ~/android/system), then type:

$ source build/envsetup.sh
$ breakfast hlte

This will download the device specific configuration and kernel source for your device. An alternative to using the breakfast command is to build your own local manifest. To do this, you will need to locate your device on CyanogenMod’s GitHub and list all of the repositories defined in cm.dependencies in your local manifest.

Extract proprietary blobs

Now ensure that your Galaxy Note 3 LTE is connected to your computer via the USB cable and that you are in the ~/android/system/device/samsung/hlte directory (you can cd ~/android/system/device/samsung/hlte if necessary). Then run the extract-files.sh script:

$ ./extract-files.sh

You should see the proprietary files (aka “blobs”) get pulled from the device and moved to the ~/android/system/vendor/samsung directory. If you see errors about adb being unable to pull the files, adb may not be in the path of execution. If this is the case, see the adb page for suggestions for dealing with “command not found” errors.

Turn on caching to speed up build

You can speed up subsequent builds by adding

export USE_CCACHE=1

to your ~/.bashrc file (what’s a .bashrc file?). Then, specify the amount of disk space to dedicate to ccache by typing this from the top of your Android tree:

prebuilts/misc/linux-x86/ccache/ccache -M 50G

where 50G corresponds to 50GB of cache. This only needs to be run once and the setting will be remembered. Anywhere in the range of 25GB to 100GB will result in very noticeably increased build speeds (for instance, a typical 1hr build time can be reduced to 20min). If you’re only building for one device, 25GB-50GB is fine. If you plan to build for several devices that do not share the same kernel source, aim for 75GB-100GB. This space will be permanently occupied on your drive, so take this into consideration. See more information about ccache on Google’s android build environment initialization page.

Start the build

Time to start building! So now type:

$ croot
$ brunch hlte

The build should begin.

If the build breaks…

• If you experience this not-enough-memory-related error…

ERROR: signapk.jar failed: return code 1make: *** [out/target/product/hlte/cm_hlte-ota-eng.root.zip] Error 1

…you may want to make the following change to ~/android/system/build/tools/releasetools/common.py:

Search for instances of -Xmx2048m (it should appear either under OPTIONS.java_args or near usage of signapk.jar), and replace it with -Xmx1024m or -Xmx512m.

Then start the build again (with brunch).

• If you see a message about things suddenly being “killed” for no reason, your (virtual) machine may have run out of memory or storage space. Assign it more resources and try again.

Install the build

Assuming the build completed without error (it will be obvious when it finishes), type:

$ cd $OUT

in the same terminal window that you did the build. Here you’ll find all the files that were created. The stuff that will go in /system is in a folder called system. The stuff that will become your ramdisk is in a folder called root. And your kernel is called… kernel.

But that’s all just background info. The two files we are interested in are (1) recovery.img, which contains CyanogenMod Recovery, and (2) cm-13.0-20161224-UNOFFICIAL-hlte.zip, which is the CyanogenMod installation package.

Install CyanogenMod

Back to the $OUT directory on your computer– you should see a file that looks something like:

cm-13.0-20161224-UNOFFICIAL-hlte.zip

Now you can flash the cm...zip file above as usual via recovery mode. Before doing so, now is a good time to make a backup of whatever installation is currently running on the device in case something goes wrong with the flash attempt. While CyanogenMod Recovery doesn’t have a backup feature, there are other custom recoveries available that do. You can also use something like Titanium Backup (root required) as an alternative.

Success! So….what’s next?

You’ve done it! Welcome to the elite club of self-builders. You’ve built your operating system from scratch, from the ground up. You are the master/mistress of your domain… and hopefully you’ve learned a bit on the way and had some fun too.

Now that you’ve succeeded in building CyanogenMod for your device, here are some suggestions on what to do next.

Also, be sure to take a glance at the Dev Center on this wiki for all kinds of more detailed information about developer topics ranging from collecting logs, understanding what’s in the source code directories, submitting your own contributions, porting CyanogenMod to new devices, and a lot more.

Congrats again!

Content of this page is based on informations from wiki.cyanogenmod.org, under CC BY-SA 3.0 licence.

Cyanogenmod ROM Samsung Galaxy S II (T-Mobile) (hercules)

Quick Info

Download CyanogenMod

Download (nightly build)
CyanogenMod 11 (Android 4.4-4.4.4 (KitKat))

Main sections for Samsung Galaxy S II (T-Mobile) (“hercules”)

1. Information about Samsung Galaxy S II (T-Mobile) (“hercules”)
2. CyanogenMod install guide for Samsung Galaxy S II (T-Mobile) (“hercules”)
3. Build CyanogenMod and CyanogenMod Recovery guide

Notes

Heimdall does not currently reliably support the device so it is recommended to use ODIN or compile this Heimdall: https://github.com/jamiejackson/Heimdall.git . This message will go away once Heimdall supports it fully.

Special boot modes

• Recovery: Hold Vol Up & Vol Down, press Power for two seconds, and continue to hold Vol Up & Vol Down until the device is booted.
• Download: Hold Vol Down& Vol Up and connect USB.

Source code

Device	http://www.github.com/cyanogenmod/android_device_samsung_hercules
Kernel	http://www.github.com/cyanogenmod/android_kernel_samsung_msm8660-common

Galaxy S II (T-Mobile) Specifications

Codename:	hercules
Vendor:	Samsung
Manufacturer:	samsung
Release date:	2011 October 12 (USA) 2011 October 28 (CAN)
Carrier:	T-Mobile
Type:	phone
GSM freq:	850 900 1800 1900 MHz GSM/GPRS/EDGE 850 1700 1900 2100 UMTS/HSPA++
Platform:	Qualcomm APQ8060
CPU:	1.5 GHz dual-core Qualcomm Snapdragon S3
GPU:	Adreno 220
RAM:	1GB
Weight:	135 g (4.8 oz)
Dimensions:	130 mm (5.1 in) (h) 69 mm (2.7 in) (w) 9 mm (0.37 in) (d)
Screen size:	114 mm (4.5 in)
Resolution:	800×480
Internal storage:	16GB
SD Card:	up to 32GB
Bluetooth:	3.0
Wi-Fi:	802.11 b/g/n
Main camera:	8MP w/ LED flash
Secondary camera:	2MP
Power:	1850 mAh
Peripherals:	capacitive touchscreen, proximity & light sensors, 3-axis accelerometer, 3-axis gyroscope, digital compass, A-GPS
CM supported:	9, 10, 10.1, 10.2, 11

How to Install CyanogenMod on the Samsung Galaxy S II (T-Mobile) (hercules)

Important Notes

Heimdall does not currently reliably support the device so it is recommended to use ODIN or compile this Heimdall: https://github.com/jamiejackson/Heimdall.git . This message will go away once Heimdall supports it fully.

Installing a custom recovery

Samsung devices come with a unique boot mode called Download Mode which is very similar to Fastboot Mode on some devices with unlocked bootloaders. Heimdall is a cross-platform, open source tool for interfacing with Download Mode on Samsung devices. The preferred method of installing a custom recovery is through this boot mode. Rooting the stock firmware is neither recommended nor necessary.

1. Download and install the Heimdall Suite
   • Windows: Extract the Heimdall suite and take note of the directory holding heimdall.exe. You can verify Heimdall is working by opening a command prompt in this directory and typing heimdall version. If you receive an error, be sure that you have the Microsoft Visual C++ 2012 Redistributable Package (x86/32bit) installed on your computer.
   • Linux: Pick the appropriate installation package based on your distribution. The -frontend packages are not required for this guide. After installation, heimdall should be available from the terminal; type heimdall version to verify installation succeeded.
   • Mac: Install the dmg package. After installation, heimdall should be available from the terminal; type heimdall version to verify installation succeeded.
   • Building from source: The source code for the Heimdall Suite is available on Github. For more details about how to compile the Heimdall Suite, please refer to the README file on Github under the relevant operating system directory. You can also refer to the Install and compile Heimdall instructions on this wiki.
2. Download recovery — you can directly download a recovery image using the link below, or visit TWRP site to check for the latest version of recovery for your device (if your device can be found there). For general info about recoveries click here.

   Recovery: Download

   md5: 406cc3549d4f78deb3c01a5aa1b6cd3c

3. Power off the Galaxy S II (T-Mobile) and connect the USB adapter to the computer but not to the Galaxy S II (T-Mobile), yet.
4. Boot the Galaxy S II (T-Mobile) into download mode. Hold Vol Down& Vol Up and connect USB. Accept the disclaimer on the device. Then, insert the USB cable into the device.
5. Windows (only) driver installation – Skip this step if you are using Linux or Mac

   A more complete set of the following instructions can be found in the Zadig User Guide.

   1. Run zadig.exe from the Drivers folder of the Heimdall Suite.
   2. Choose Options » List All Devices from the menu.
   3. Select Samsung USB Composite Device or MSM8x60 or Gadget Serial or Device Name from the drop down menu. (If nothing relevant appears, try uninstalling any Samsung related Windows software, like Samsung Windows drivers and/or Kies).
   4. Click Replace Driver (having selecting “Install Driver” from the drop down list built into the button).
   5. If you are prompted with a warning that the installer is unable to verify the publisher of the driver, select Install this driver anyway. You may receive two more prompts about security. Select the options that allow you to carry on.
6. At this point, familiarize yourself with the Flashing with heimdall notes below so that you are prepared for any strange behaviour if it occurs.
7. On the computer, open a terminal (or Command Prompt on Windows) in the directory where the recovery image is located and type:

   heimdall flash --RECOVERY recovery.img --no-reboot

   Tip: The file may not be named identically to what’s in this command. If the file is wrapped in a zip or tar file, extract the file first, because heimdall isn’t going to do it for you.

8. A blue transfer bar will appear on the device showing the recovery being transferred.
9. Unplug the USB cable from your device.
   • NOTE: Be sure to reboot into recovery immediately after having installed the custom recovery. Otherwise the custom recovery will be overwritten and the device will reboot (appearing as though your custom recovery failed to install).
10. Manually reboot the phone into recovery mode by performing the following. Hold Vol Up & Vol Down, press Power for two seconds, and continue to hold Vol Up & Vol Down until the device is booted.
11. The Galaxy S II (T-Mobile) now has a custom recovery installed. Continue to the next section.

Installing CyanogenMod from recovery

1. Make sure your computer has working adb.
2. Download the CyanogenMod build package for your device that you’d like to install to your computer.

   Optional: Download 3rd party applications packages, like Google Apps which are necessary to download apps from Google Play.

3. Boot to recovery mode, and connect the phone to your computer through USB.
   • Hold Vol Up & Vol Down, press Power for two seconds, and continue to hold Vol Up & Vol Down until the device is booted.
4. In ClockworkMod Recovery, use the physical volume buttons to move up and down. On most devices, the power button is used to confirm a menu selection, but for some devices a physical home key acts as a selector. Some devices have touch enabled ClockworkMod Recovery, in which case you may be able to swipe to, or touch, menu selections.
5. Optional (Recommended): Select backup and restore to create a backup.
6. Select wipe data/factory reset.
7. You have two options for transferring and installing the installation packages. The sideload method is more universal across devices, whereas the push and install method is more commonly used:
   • Sideload method: select install zip > install zip from sideload. Follow the on-screen notices to install the package. The installer does not necessarily display an “Install complete.” message. You can tell the install is complete if there were no fatal error messages and you have regained control over the menu.
   • Push and install method: Open a command prompt (or Terminal on Mac and Linux) and navigate to the directory holding the package(s) you would like to install. On the device, navigate to the mounts and storage menu. If you see /storage/sdcard0 or /sdcard as a mountable volume, go ahead and mount it. If you do not see one of these partitions, then instead mount the /data partition. Take note of which volume you mounted. Now, push the package(s) to your device (also, see tip below):

   – If you mounted /storage/sdcard0, then: adb push update.zip /storage/sdcard0/

   – If you mounted /sdcard or /data, then: adb push update.zip /sdcard/

   where update.zip should be replaced with the package filename. Go back to the main menu and select install zip. Choose to install from the same directory where you pushed the package(s). If you are installing multiple packages, install CyanogenMod first and then install any subsequent packages on top of it.

8. Once installation has finished, return to the main menu and select reboot system now. The device will now boot into CyanogenMod.

How To Build CyanogenMod For Samsung Galaxy S II (T-Mobile) (hercules)

Introduction

These instructions will hopefully assist you to start with a stock Galaxy S II (T-Mobile), unlock the bootloader (if necessary), and then download the required tools as well as the very latest source code for CyanogenMod (based on Google’s Android operating system). Using these, you can build both CyanogenMod and CyanogenMod Recovery image from source code, and then install them both to your device.

It is difficult to say how much experience is necessary to follow these instructions. While this guide is certainly not for the very very very uninitiated, these steps shouldn’t require a PhD in software development either. Some readers will have no difficulty and breeze through the steps easily. Others may struggle over the most basic operation. Because people’s experiences, backgrounds, and intuitions differ, it may be a good idea to read through just to ascertain whether you feel comfortable or are getting over your head.

Remember, you assume all risk of trying this, but you will reap the rewards! It’s pretty satisfying to boot into a fresh operating system you baked at home :) And once you’re an Android-building ninja, there will be no more need to wait for “nightly” builds from anyone. You will have at your fingertips the skills to build a full operating system from code to a running device, whenever you want. Where you go from there– maybe you’ll add a feature, fix a bug, add a translation, or use what you’ve learned to build a new app or port to a new device– or maybe you’ll never build again– it’s all really up to you.

What you’ll need

• A Galaxy S II (T-Mobile)
• A relatively recent computer (Linux, OS X, or Windows) with a reasonable amount of RAM and about 100 GB of free storage (more if you enable ccache or build for multiple devices). The less RAM you have, the longer the build will take (aim for 8 GB or more). Using SSDs results in considerably faster build times than traditional hard drives.
• A USB cable compatible with the Galaxy S II (T-Mobile) (typically micro USB, but older devices may use mini USB or have a proprietary cable)
• A decent internet connection & reliable electricity :)
• Some familiarity with basic Android operation and terminology. It would help if you’ve installed custom roms on other devices and are familiar with recovery. It may also be useful to know some basic command line concepts such as cd for “change directory”, the concept of directory hierarchies, that in Linux they are separated by /, etc.

If you are not accustomed to using Linux– this is an excellent chance to learn. It’s free– just download and run a virtual machine (VM) such as Virtualbox, then install a Linux distribution such as Ubuntu (AOSP vets Ubuntu as well). Any recent 64-bit version should work great, but the latest is recommended.

Using a VM allows Linux to run as a guest inside your host computer– a computer in a computer, if you will. If you hate Linux for whatever reason, you can always just uninstall and delete the whole thing. (There are plenty of places to find instructions for setting up Virtualbox with Ubuntu, so I’ll leave it to you to do that.)

So let’s begin!

Build CyanogenMod and CyanogenMod Recovery

Prepare the Build Environment

Install the SDK

If you have not previously installed adb and fastboot, install the Android SDK. “SDK” stands for Software Developer Kit, and it includes useful tools that you can use to flash software, look at the system logs in real time, grab screenshots, and more– all from your computer.

Install the Build Packages

Several “build packages” are needed to build CyanogenMod. You can install these using the package manager of your choice.

For both 32-bit & 64-bit systems, you’ll need:

bc bison build-essential curl flex git gnupg gperf libesd0-dev liblz4-tool libncurses5-dev libsdl1.2-dev libwxgtk2.8-dev libxml2 libxml2-utils lzop maven openjdk-7-jdk pngcrush schedtool squashfs-tools xsltproc zip zlib1g-dev

In addition to the above, for 64-bit systems, get these:

g++-multilib gcc-multilib lib32ncurses5-dev lib32readline-gplv2-dev lib32z1-dev

For Ubuntu 15.10 (wily) and newer, substitute:

• lib32readline-gplv2-dev → lib32readline6-dev

For Ubuntu 16.04 (xenial) and newer, substitute (additionally see java notes below):

• libwxgtk2.8-dev → libwxgtk3.0-dev
• openjdk-7-jdk → openjdk-8-jdk

Java versions: Different versions of CyanogenMod require different versions of the JDK (Java Development Kit):

• CyanogenMod 7 – 9: Sun/Oracle Java SE 1.6
• CyanogenMod 10.1: Sun/Oracle Java SE 1.6 or 1.7
• CyanogenMod 10.2 – 11.0: Sun/Oracle Java SE 1.6 or 1.7 (OpenJDK 1.7 works fine, but the build system will display a warning)
• CyanogenMod 12.0 – 13.0: OpenJDK 1.7 (see note about OpenJDK 1.8 below)
• CyanogenMod 14.1: OpenJDK 1.8

Ubuntu 16.04 (Xenial Xerus) or newer and OpenJDK: Since OpenJDK 1.7 was removed from the official Ubuntu repositories, you have a couple options:

1. Obtain OpenJDK 1.7 from the openjdk-r PPA
2. Enable experimental OpenJDK 1.8 support in CyanogenMod 13.0 (not available in earlier version). To enable OpenJDK 1.8 support, add this line to your $HOME/.bashrc file: export EXPERIMENTAL_USE_JAVA8=true.

Also see http://source.android.com/source/initializing.html which lists needed packages.

Create the directories

You will need to set up some directories in your build environment.

To create them:

$ mkdir -p ~/bin
$ mkdir -p ~/android/system

Install the repo command

Enter the following to download the “repo” binary and make it executable (runnable):

$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo

Put the ~/bin directory in your path of execution

In recent versions of Ubuntu, ~/bin should already be in your PATH. You can check this by opening ~/.profile with a text editor and verifying the following code exists (add it if it is missing):

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

Initialize the CyanogenMod source repository

Enter the following to initialize the repository:

Note: Make sure the cm branch entered here is the one you wish to build and is supported on your device.

$ cd ~/android/system/
$ repo init -u https://github.com/CyanogenMod/android.git -b cm-13.0

Download the source code

To start the download of all the source code to your computer:

$ repo sync

The CM manifests include a sensible default configuration for repo, which we strongly suggest you use (i.e. don’t add any options to sync). For reference, our default values are -j 4 and -c. The -j 4 part means that there will be four simultaneous threads/connections. If you experience problems syncing, you can lower this to -j 3 or -j 2. -c will ask repo to pull in only the current branch, instead of the entire CM history.

Prepare to wait a long time while the source code downloads.

Get prebuilt apps (CM11 and below)

Next,

$ cd ~/android/system/vendor/cm

then enter:

$ ./get-prebuilts

You won’t see any confirmation- just another prompt. But this should cause some prebuilt apps to be loaded and installed into the source code. Once completed, this does not need to be done again.

Prepare the device-specific code

After the source downloads, ensure you are in the root of the source code (cd ~/android/system), then type:

$ source build/envsetup.sh
$ breakfast hercules

This will download the device specific configuration and kernel source for your device. An alternative to using the breakfast command is to build your own local manifest. To do this, you will need to locate your device on CyanogenMod’s GitHub and list all of the repositories defined in cm.dependencies in your local manifest.

Extract proprietary blobs

Now ensure that your Galaxy S II (T-Mobile) is connected to your computer via the USB cable and that you are in the ~/android/system/device/samsung/hercules directory (you can cd ~/android/system/device/samsung/hercules if necessary). Then run the extract-files.sh script:

$ ./extract-files.sh

You should see the proprietary files (aka “blobs”) get pulled from the device and moved to the ~/android/system/vendor/samsung directory. If you see errors about adb being unable to pull the files, adb may not be in the path of execution. If this is the case, see the adb page for suggestions for dealing with “command not found” errors.

Turn on caching to speed up build

You can speed up subsequent builds by adding

export USE_CCACHE=1

to your ~/.bashrc file (what’s a .bashrc file?). Then, specify the amount of disk space to dedicate to ccache by typing this from the top of your Android tree:

prebuilts/misc/linux-x86/ccache/ccache -M 50G

where 50G corresponds to 50GB of cache. This only needs to be run once and the setting will be remembered. Anywhere in the range of 25GB to 100GB will result in very noticeably increased build speeds (for instance, a typical 1hr build time can be reduced to 20min). If you’re only building for one device, 25GB-50GB is fine. If you plan to build for several devices that do not share the same kernel source, aim for 75GB-100GB. This space will be permanently occupied on your drive, so take this into consideration. See more information about ccache on Google’s android build environment initialization page.

Start the build

Time to start building! So now type:

$ croot
$ brunch hercules

The build should begin.

If the build breaks…

• If you experience this not-enough-memory-related error…

ERROR: signapk.jar failed: return code 1make: *** [out/target/product/hercules/cm_hercules-ota-eng.root.zip] Error 1

…you may want to make the following change to ~/android/system/build/tools/releasetools/common.py:

Search for instances of -Xmx2048m (it should appear either under OPTIONS.java_args or near usage of signapk.jar), and replace it with -Xmx1024m or -Xmx512m.

Then start the build again (with brunch).

• If you see a message about things suddenly being “killed” for no reason, your (virtual) machine may have run out of memory or storage space. Assign it more resources and try again.

Install the build

Assuming the build completed without error (it will be obvious when it finishes), type:

$ cd $OUT

in the same terminal window that you did the build. Here you’ll find all the files that were created. The stuff that will go in /system is in a folder called system. The stuff that will become your ramdisk is in a folder called root. And your kernel is called… kernel.

But that’s all just background info. The two files we are interested in are (1) recovery.img, which contains CyanogenMod Recovery, and (2) cm-13.0-20161224-UNOFFICIAL-hercules.zip, which is the CyanogenMod installation package.

Install CyanogenMod

Back to the $OUT directory on your computer– you should see a file that looks something like:

cm-13.0-20161224-UNOFFICIAL-hercules.zip

Now you can flash the cm...zip file above as usual via recovery mode. Before doing so, now is a good time to make a backup of whatever installation is currently running on the device in case something goes wrong with the flash attempt. While CyanogenMod Recovery doesn’t have a backup feature, there are other custom recoveries available that do. You can also use something like Titanium Backup (root required) as an alternative.

Success! So….what’s next?

You’ve done it! Welcome to the elite club of self-builders. You’ve built your operating system from scratch, from the ground up. You are the master/mistress of your domain… and hopefully you’ve learned a bit on the way and had some fun too.

Now that you’ve succeeded in building CyanogenMod for your device, here are some suggestions on what to do next.

Also, be sure to take a glance at the Dev Center on this wiki for all kinds of more detailed information about developer topics ranging from collecting logs, understanding what’s in the source code directories, submitting your own contributions, porting CyanogenMod to new devices, and a lot more.

Congrats again!

Content of this page is based on informations from wiki.cyanogenmod.org, under CC BY-SA 3.0 licence.

Cyanogenmod ROM Samsung Galaxy S II (AT&T) – (i777)

Quick Info

Download CyanogenMod

Download (nightly build)
CyanogenMod 12.1 (Android 5.1 (Lollipop))

Main sections for Samsung Galaxy S II (AT&T) (“i777”)

1. Information about Samsung Galaxy S II (AT&T) (“i777”)
2. CyanogenMod install guide for Samsung Galaxy S II (AT&T) (“i777”)
3. Build CyanogenMod and CyanogenMod Recovery guide

Notes

Note:

The install guide assumes your device is running stock Android 4.x.

Note:

This device was previously called galaxys2att. Current development uses the i777 name, but older releases of CyanogenMod can still be downloaded from download.cyanogenmod.org/?device=galaxys2att.

WARNING:

Some second-generation Samsung Exynos devices are potentially susceptible to a “superbrick” caused by performing a factory reset with the stock kernel, which effectively kills the internal memory in the device. It is highly recommended you do not perform this operation while using a stock kernel for safety reasons.

Special boot modes

• Recovery: Vol Up & Power
• Download: Volume Down & Power

Source code

Device	http://www.github.com/cyanogenmod/android_device_samsung_i777
Kernel	http://www.github.com/cyanogenmod/android_kernel_samsung_smdk4412

Galaxy S II (AT&T) Specifications

Codename:	i777
Vendor:	Samsung
Release date:	2011 October 2 (USA)
Carrier:	AT&T
Type:	phone
GSM freq:	850 900 1800 1900 MHz GSM/GPRS/EDGE 850 1900 2100 MHz UMTS/HSPA+
Platform:	Samsung Exynos 4210
CPU:	1.2 GHz dual-core Cortex A9
GPU:	Mali-400
RAM:	1GB
Weight:	113 g (4.0 oz)
Dimensions:	126 mm (4.9 in) (h) 66 mm (2.6 in) (w) 9 mm (0.354 in) (d)
Screen size:	109 mm (4.3 in)
Resolution:	800×480
Screen density:	222 PPI
Internal storage:	16GB
SD Card:	up to 32GB
Bluetooth:	3.0
Wi-Fi:	802.11 b/g/n
Main camera:	8MP w/ LED flash
Secondary camera:	2MP
Power:	1650 mAh
Peripherals:	capacitive touchscreen, proximity & light sensors, 3-axis accelerometer, 3-axis gyroscope, digital compass, A-GPS, FM Radio, NFC
CM supported:	7, 9, 10, 10.1, 10.2, 12.1

bc bison build-essential curl flex git gnupg gperf libesd0-dev liblz4-tool libncurses5-dev libsdl1.2-dev libwxgtk2.8-dev libxml2 libxml2-utils lzop maven openjdk-7-jdk pngcrush schedtool squashfs-tools xsltproc zip zlib1g-dev

g++-multilib gcc-multilib lib32ncurses5-dev lib32readline-gplv2-dev lib32z1-dev

$ mkdir -p ~/bin
$ mkdir -p ~/android/system

$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

$ cd ~/android/system/
$ repo init -u https://github.com/CyanogenMod/android.git -b cm-13.0

$ repo sync

$ cd ~/android/system/vendor/cm

$ ./get-prebuilts

$ source build/envsetup.sh
$ breakfast i777

$ ./extract-files.sh

export USE_CCACHE=1

prebuilts/misc/linux-x86/ccache/ccache -M 50G

$ croot
$ brunch i777

ERROR: signapk.jar failed: return code 1make: *** [out/target/product/i777/cm_i777-ota-eng.root.zip] Error 1

$ cd $OUT

cm-13.0-20161224-UNOFFICIAL-i777.zip