Hi, I'm on Poco F3 with MIUI GLOBAL 12.5.6.0 STABILE (RKHEUXM), can I flash the rom MIUI 12.6 21.11.3 with guide of first post?
ROMs for devices with locked bootloader:
Unlock your first bootloader here http://en.miui.com/unlock/
Install TWRP via Fastboot mode, then install our ROM
Code...