I cannot edit so update in new post: I am able to boot into fastboot mode using standard key combination and trying install ubuntu touch.

I cannot edit so update in new post: I am able to boot into fastboot mode using standard key combination and trying install ubuntu touch.

Thx for answer. As I wrote in previous post I am not able to boot into fastboot mode. Neither keys combination which was working on Android nor 'reboot bootloader' work.

Thx for answer.
I found https://xiaomirom.com/en/download/poco-x3-nfc-surya-stable-V12.0.9.0.QJGMIXM/
here are 2 files with different Flash Method, Recovery or Fastboot. I couldnt find a way to boot postmarketOS to fastboot mode (probably it is not possible) so I try to find how to install andorid in recovery mode.
Btw: When I escaped from android jail I thought changing from one distro to another will be easy as on normal desktop/laptop.

Hi
I cannot find any manual how to install on phone without android. Is it possible?
I installed postmarketOS on xiaomi poco X3 and then realized that camera does not work on system without libhybris so want to switch to ubuntu touch.