I have a k30 pro 8/256 CN version
I triedTWRP-3.4.1b-0328 (wsx150) and TWRP-3.4.2b-0623 (wsx150) [do these versions really support k30pro CN?]
I tried both stable and weekly Rom: MIUI 12.0.2.0. from XDA dev forum
Everytime I tried same problem: When I reboot: 10 seconds redmi boot screen...