Hanap ka phone firmware mo sa google, tpos nood ka tutorials sa YøùTùbé, How to flash firmware, marami dun.. may provided links n sila dun para s spflashtool at iba pang gagamitin mo, or pwede search mo lang directly s YøùTùbé, how to flash firmware of (tpos name at model ng phone mo) ex. opponeo 7