@lepotototor said in Installation on poco m3 failed:
@nitanmarcel The poco m3 is build with halium 10 so I flash the recommended rom with android 10 and I use the latest recovery image of miui or the latest of TWRP ?
I cannot see what you are trying to achieve. If you use the installer and follow the instructions, you should get a good install. If you don't, it is best to install TWRP, wipe DATA, CACHE and SYSTEM, then reinstall stock (using the MiFlash tool, ensuring you DO NOT relock the bootloader) and then try again with the UT installer.
If UT won't install, you have to make sure (using TWRP) that the DATA partition is erased and formatted to EXT4 and NOT F2FS - this will decrypt the DATA partition and allow UT to see it when installing.
If UT still fails to install then the device may have had a revision upgrade and might have (annoyingly and unknown) changed hardware like a different manufactured eMMC, Screen, Camera etc, that may stop UT installing.
These are some observations where I have had installation issues across a lot of devices. I have avoided flashing devices in the list using the CLI if there is the Installer available for it as without the installer it generally has failed down to my lack of CLI and coding Fu. I have had moderate success with devices not on the installer using the CLI without bricking the device to the point of unusability, an example is the Moto E 2nd gen EXT1524 which seems to be OK(ish) with UT.