How to flash custom ROM in Realme X50 Pro

1 - Download TWRP 3.7.0_A12 and a custom ROM

2 - Flash TWRP img to recovery from bootloader (fastboot flash recovery name.img)

3 - Reboot to recovery and skip decryption (it will fail when you come from RealmeUI)

4 - Flash your custom ROM with an OTG drive or with adb sideload (adb sideload pathtofile.zip)

5 - Format data

6 - Reboot to system