Hi. Recently, I was playing with my old Huawei P10 Lite. I was thinking how to run Android 12 on P10 Lite. The problem was that you had to use the arm64_a complication, and for Android 12 it was released in the AB version. I used an old trick that involved TWRP install emui 9 from Huawei P SMART 2018 to P10 Lite. I know there was a topic about how to install it, but I can't share link to it because I can't find it 
Installation Guide
1. Install TWRP on our P10 LITE https://mega.nz/file/LLhBXSzY#3runNNoW9z1tOHSu-heIUhyy-4u8XHvc8rZMsn547so (It's not my TWRP)
2. Load it with the command fastboot flash recovery_ramdisk TWRP.img
3.We download the latest version of Emui 9 from here https://androidhost.ru/Xba
4. After downloading, extract it and look for the Update.zip file
5. I recommend that you make OEMINFO copies of our phone model because after flashing, instead of the Huawei logo, there will be only dashes.
6. Copy it to our smartphone, install the Update.zip file
7. After installation, we will restart our smartphone with Android 9 (Then the file system changes from ARM64-A to AB version)
8. Go to Developer Options and turn on USB debugging and remove the OEM lock and restart it to Fastboot (In some cases, Bootlaoder may be blocked, so you will have to unlock it)
9. Go to https://github.com/phhusson/treble_experimentations/releases and look for ARM64-AB-vndklite and download it
10. After download unpack it. There should be a file with an IMG extension
11. Go to Adb (If someone does not have it, he can download https://www.instalki.pl/programy/download/Windows/zarzadzanie_telefonem/ADB_Installer.html)
After entering, connect our smartphone to the PC and enter Fastboot devices. We make sure that the smartphone has been detected.
12. Type Fastboot flash system (File Location System.img) and hit Enter
13. After flashing, enter Fastboot Erase Userdata and Fastboot reboot
14. Now the smartphone may be stopping. It will stand for a while without reacting, but after a while the system logo will appear
15. For those who did P10 lite not turn on, restart the smartphone with the VOlume + and POwer keys and enter recovery. The problem is that the smartphone, after entering recovery, shows the word Format LOW and it should be Format DATA. In this case, we repeat procedure 13.
16. If it says Format DATA, click on it and reset it. An error may appear, but we do not care. Click restart
17. Now the system can boot up for 30 minutes. System start and show the error occurred Interface stop working (After restart phone It never shows up after that)
18. We now have Android 12 on our P10 lite
19. A lot of things don't work like Sound, Mic. The screen, the touch works, the GPS too, The problem is cant connect to the GSM network
20. This is an Experiment, I am not responsible for any damage to the phone but it can be repaired by Method test point
21. If someone has come to the end and it works, congratulations (I was combining 7h how to run it 12)
Installation Guide
1. Install TWRP on our P10 LITE https://mega.nz/file/LLhBXSzY#3runNNoW9z1tOHSu-heIUhyy-4u8XHvc8rZMsn547so (It's not my TWRP)
2. Load it with the command fastboot flash recovery_ramdisk TWRP.img
3.We download the latest version of Emui 9 from here https://androidhost.ru/Xba
4. After downloading, extract it and look for the Update.zip file
5. I recommend that you make OEMINFO copies of our phone model because after flashing, instead of the Huawei logo, there will be only dashes.
6. Copy it to our smartphone, install the Update.zip file
7. After installation, we will restart our smartphone with Android 9 (Then the file system changes from ARM64-A to AB version
)8. Go to Developer Options and turn on USB debugging and remove the OEM lock and restart it to Fastboot (In some cases, Bootlaoder may be blocked, so you will have to unlock it)
9. Go to https://github.com/phhusson/treble_experimentations/releases and look for ARM64-AB-vndklite and download it
10. After download unpack it. There should be a file with an IMG extension
11. Go to Adb (If someone does not have it, he can download https://www.instalki.pl/programy/download/Windows/zarzadzanie_telefonem/ADB_Installer.html)
After entering, connect our smartphone to the PC and enter Fastboot devices. We make sure that the smartphone has been detected.
12. Type Fastboot flash system (File Location System.img) and hit Enter
13. After flashing, enter Fastboot Erase Userdata and Fastboot reboot
14. Now the smartphone may be stopping. It will stand for a while without reacting, but after a while the system logo will appear
15. For those who did P10 lite not turn on, restart the smartphone with the VOlume + and POwer keys and enter recovery. The problem is that the smartphone, after entering recovery, shows the word Format LOW and it should be Format DATA. In this case, we repeat procedure 13.
16. If it says Format DATA, click on it and reset it. An error may appear, but we do not care. Click restart
17. Now the system can boot up for 30 minutes. System start and show the error occurred Interface stop working (After restart phone It never shows up after that)
18. We now have Android 12 on our P10 lite
19. A lot of things don't work like Sound, Mic. The screen, the touch works, the GPS too, The problem is cant connect to the GSM network
20. This is an Experiment, I am not responsible for any damage to the phone but it can be repaired by Method test point
21. If someone has come to the end and it works, congratulations
(I was combining 7h how to run it 12)
