1: Download rom to copy to the memory card
2: Power Off .– >> Press and hold the Power button and volume button + (-)
Waiting in Recovery Mode.
3: Wipe Data Factory Reset-
4: Wipe Cache
5: Wipe Davik Cache
Go to Select Install zip — >>> Select the ROM copied into memory and proceed with the installation.
Wait for completion of your Flash Menu Select Reboot after finish.