Install LineageOS on d801

Basic requirements

Important: Please read through the instructions at least once completely before actually following them to avoid any problems because you missed something!

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

Rooting your device

Important: The device must be rooted before proceeding any further.

Root your device by following this guide.

Installing a custom recovery using `dd`

Download a custom recovery - you can download TWRP.
Place the recovery image file on the root of /sdcard:
- Using adb: adb push twrp-x.x.x-x-d801.img /sdcard/twrp-d801.img
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.
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/twrp-d801.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery
```
Manually reboot into recovery:
- With the device powered off, hold Volume Down + Power. When the LG logo appears, release both buttons and then hold them again. Then answer YES to erase all user data & restore default settings (If you have TWRP installed it will not delete anything).

Note: Accept the factory reset prompt using the hardware buttons. If you have done everything correctly, this will not actually reset your device but instead will install the custom recovery.

Installing LineageOS from recovery

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).
If you aren’t already in recovery, reboot into recovery:
- With the device powered off, hold Volume Down + Power. When the LG logo appears, release both buttons and then hold them again. Then answer YES to erase all user data & restore default settings (If you have TWRP installed it will not delete anything).
(Optional, but recommended): Tap the Backup button to create a backup. Make sure the backup is copied onto your computer as the internal storage will be formatted later in this process.
Go back to return to main menu, then tap Wipe.
Now tap Format Data and continue with the formatting process. This will remove encryption as well as delete all files stored on the internal storage.
Return to the previous menu and tap Advanced Wipe.
Select the Cache and System partitions to be wiped and then Swipe to Wipe.
Sideload the LineageOS .zip package:
- On the device, select “Advanced”, “ADB Sideload”, then swipe to begin sideload.
- On the host machine, sideload the package using: adb sideload filename.zip
(Optional): Install any additional packages using the same method.

Note: If you want Google Apps on your device, you must follow this step before the first boot into Android!
(Optional): Root the device by installing the LineageOS SU Addon (use the arm package) or using any other method you prefer.
Once installation has finished, return to the main menu, tap Reboot, and then System.

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.