Flash steps for ANY R vendor roms

FROM S VENDOR ROMS/ Miui 13 or Miui Android 10/ Q vendor roms or non-oss roms

• Flash miui fastboot rom ( 12.5.4 for Merlin and 12.5.6 for lancelot)
• Follow recovery guide
• Flash the rom , Gapps and magisk (if necessary) 
• Format data 
• Reboot system

FROM R VENDOR ROMS

• Reboot recovery 
• Flash rom , Gapps and magisk (if necessary)
• Format data
• Reboot system