Installation procedure for the roms which has google apps included ============== 1. Boot in to twrp 2. Click on wipe 3. Select format data 4. Type yes 5. Reboot to bootloader 6. Boot in to twrp 7. Select wipe 8. Select advance wipe 9. Select all except sdcard 10. Swipe to wipe 11. Copy Rom.zip 12. Flash ROM.zip 13. Change slot 14. Select wipe 15. Select advance wipe 16. Select all except system vendor SD card and swipe to wipe 17. Reboot system Installation procedure for the roms which doesn't comes with gapps ============== 1. Boot in to twrp 2. Click on wipe 3. Select format data 4. Type yes 5. Reboot to bootloader 6. Boot in to twrp 7. Select wipe 8. Select advance wipe 9. Select all except sdcard 10. Swipe to wipe 11. Copy rom.zip 12. Flash ROM.zip 13. Change slot , reboot to twrp again , flash opengapps.zip 14. Select wipe 15. Select advance wipe 16. Select all except system vendor SD card and swipe to wipe 17. Reboot system Installation procedure for the roms which doesn't comes with vendor ============= 1. Boot in to twrp 2. Click on wipe 3. Select format data 4. Type yes 5. Reboot to bootloader 6. Boot in to twrp 7. Select wipe 8. Select advance wipe 9. Select all except sdcard 10. Swipe to wipe 11. Copy rom.zip 12. Flash ROM.zip & vendor.zip 13. Change slot , reboot to twrp again , flash opengapps.zip 14. Select wipe 15. Select advance wipe 16. Select all except system vendor SD card and swipe to wipe 17. Reboot system