Tested on redmi 5a riva 2/16 /2/32
Tips :
- Downgrade MIUI 11 to MIUI 9 = OK
- Dont use viper if you use OREO FW
TWRP
Custom
- AOSiP-8.1-Derp-riva-20180929
- Havoc-OS
- PixelExperience
STOCK ROM
https://xiaomifirmwareupdater.com/archive/miui/riva/
Android 11 (XIAOMI REDMI 5A/4A ROVA [UNIFIED])
- Make sure u’r on android 7 stock ROM or Downgrade first
- flash PBRP and boot to recovery
- wipe cache,data,vendor,system, and dalvik cache
- reboot recovery
- flash ROM A11 https://sourceforge.net/projects/nusantaraproject/files/rolex/
- flash gapps and magisk (optional)