Install LineageOS on jflteatt

Basic requirements

1. Make sure your computer has working adb. Setup instructions can be found here.
2. Enable USB debugging on your device.

Special requirements

Rooting your device

1. Download TowelRoot from here.
   1. Click the large lambda symbol to download the apk.
   2. Install and run the apk to achieve root.

Installing a custom recovery using dd

1. Download a custom recovery - you can download Lineage Recovery. Simply download the latest recovery file, named something like lineage-16.0-20190822-recovery-jflteatt.img.

2. Place the recovery image file on the root of /sdcard:
   • Using adb: adb push <recovery_filename>.img /sdcard/<recovery_filename>.img
   check

   Tip: The file may not be named identically to what stands in this command, so adjust accordingly.
   • You can use any method you are comfortable with. adb is universal across all devices, and works both in Android and recovery mode, providing USB debugging is enabled.
3. Now, open an adb shell from a command prompt (on Windows) or terminal (on Linux or macOS) window. In that shell, type the following commands:

   su
   dd if=/sdcard/<recovery_filename>.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery
   

4. Manually reboot into recovery:
   • With the device powered off, hold Home + Volume Up + Power.

Installing LineageOS from recovery

1. Download the LineageOS install package that you’d like to install or build the package yourself.

   • Optionally, download additional application packages such as Google Apps (use the arm architecture).
2. If you aren’t already in recovery, reboot into recovery:
   • With the device powered off, hold Home + Volume Up + Power.
3. Now tap Factory Reset, then Wipe data / factory reset and continue with the formatting process. This will remove encryption as well as delete all files stored on the internal storage, as well as format your cache partition (if you have one).
4. Now tap Wipe System and continue with the formatting process.
5. Return to the main menu.
6. Sideload the LineageOS .zip package:
   • On the device, select “Apply Update”, then “Apply from ADB” to begin sideload.
   • On the host machine, sideload the package using: adb sideload filename.zip

7. (Optionally): If you want to install any additional add-ons, adb sideload /path/to/zip those packages in sequence.

   info_outline

   Note: If you want Google Apps on your device, you must follow this step before the first boot into Android!
8. (Optional): Root the device by installing the LineageOS’s AddonSU, (use the arm package) or using any other method you prefer.
9. Once all installations are finished, run ‘adb reboot’.

Get assistance

If you have any questions or get stuck on any of the steps, feel free to ask on our subreddit or in #LineageOS on freenode.