LG

ℹ️

Ensure you select the matching Android version offered by the AXP.OS build. You can find the Android version at the device’s overview page.

That means:

if AXP.OS offers a build with Android 13 choose Android 13 firmware and not any later or older - if there is any
if there is no matching firmware for that Android version of the AXP.OS build (e.g. because your device is very old), choose the latest one available.

Generic

Follow the LineageOS wiki based on your device: https://wiki.lineageos.org/devices/ if one is available.

boot into TWRP and flash the required firmware for your model:

download h815_20p_bootloader_20p_modem_TWRP-flashable.zip (it is crucial important you are selecting the exact filename)
download h815_20p_bootloader_20p_modem_TWRP-flashable.zip.md5
boot TWRP
push both files to TWRP (e.g. adb push h815_20p_bootloader_20p_modem_TWRP-flashable.zip* /sdcard/)
in TWRP choose Install and find the zip in /sdcard
ensure you uncheck “Skip digest check before installing zip” as it is crucial important that the md5sum will be used and checked to avoid corruption
let TWRP install the file

required firmware: h815_UsU_20p_bootloader_20p_modem_TWRP-flashable.zip (i.e. with UsU in its name)

download h815_UsU_20p_bootloader_20p_modem_TWRP-flashable.zip (it is crucial important you are selecting the exact filename)
download h815_UsU_20p_bootloader_20p_modem_TWRP-flashable.zip.md5
boot TWRP
push both files to TWRP (e.g. adb push h815_UsU_20p_bootloader_20p_modem_TWRP-flashable.zip* /sdcard/)
in TWRP choose Install and find the zip in /sdcard
ensure you uncheck “Skip digest check before installing zip” as it is crucial important that the md5sum will be used and checked to avoid corruption
let TWRP install the file

Last updated on 2025-04-26