Device: Itel RS4 (S666LN)
Recommended Recovery: https://t.me/itelrs4updates/164

Flashing Instructions:

* Clean Flash:
- Wipe Dalvik, ART & Cache, Metadata, Data
- Format Data
- Flash ROM
- Format data
- Reboot
- Install ofox
- Reboot Recovery
- Install nikgapps core (if youre using vanilla)
- Reboot

* Dirty Flash: 
- Reboot to recovery
- Flash ROM.zip
- Wipe Cache, Dalvik
- Reboot