Hi all!
I've hit a problem!
I managed to unlock the bootloader and flashed TWRP (recovery-TWRP-3.4.2B-1206-REDMI_K30PRO-CN-wzsx150.img).
It took me a few times to realize that if I reboot phone after flashing TWRP, it gets wiped by stock recovery. I copied ROM zip to usb...