After booting, wait for a while, then have someone call your phone. This might help in completing the boot process.I updated my TWRP to A15 and flashed the HyperOS 2.0 rom 12S Pro (unicorn).
I got a lot of "skip copying super image avb footer due to sparse image" errors and my phone only shows Xiaomi HyperOS. I tried to flash the rom via windows and over TWRP.
Anyone an idea how to fix it ?
Thank you
Although the phone has likely already finished booting, the screen might be stuck due to some bugs. If you connect your phone to a computer and run ADB commands, it works, indicating that the booting is complete.
Some overlay actions like an alarm or phone call might help getting out of the infinite boot screen as I tested.