PixelExperience 12 20220122-0913 Official Polaris Build

Formatting data with PE recovery is REQUIRED for clean flash
- DO NOT use any other recovery
- The firmware is included with a different keymaster.img from perseus. DO NOT flash your own firmware.
- Keymaster is bumped to 4.0 for encryption, and cust partition is mounted as /metadata. You WILL NOT be able to boot TWRP/OrangeFox on PE12.
- To switch to other ROMs, format data in PE recovery first, and then install another recovery. You may need to re-flash the required firmware, if the ROM you are going to flash does not include one.
You can dirty flash from my previous PE 12 builds.
You cannot upgrade from android 11 directly. Formatting data is required.

Download PE recovery from the official PE website
Boot your phone into fastboot mode. You can either
- hold power + volume down button
- or adb reboot bootloader
- or use the Reboot to bootloader option in TWRP/OrangeFox
Connect your phone to a computer
Run fastboot flash recovery pe_recovery_file_name.img in your cmd/powershell/terminal
Hold power + volume up to boot into recovery

Boot into PE recovery
Select Factory reset" --> "Format data/factory reset. You phone should say that /data, /cache, and /metadata have been formatted.
Go back to main menu and select “Apply update” –> “Apply from ADB”
Connect your phone to a computer
Run adb sideload pe_rom_file_name.zip in your cmd/powershell/terminal and wait until it finishes
Reboot to system

Fixed the issue of failed OTA installation in the built-in system updater
- you still need to manually adb sideload this build in recovery so that the fix can be applied to your current system’s updater
- after that, you will be able to install future OTA updates through the built-in updater
- no need to wipe or format anything if you are using my previous PE 12 builds

Rounded corners are broken. It does not seem to be an issue on the device side, as debug info reports correct values

Please report issues to jjpprrrr.