hard reset oppo a3s - factory reset oppo a1k
$800.00
Restart your phone: This is often the simplest and quickest solution for a black screen issue. oppo slot online Press and hold the power button until the device turns off, then turn it back on again. cara reset hp oppo f7 lupa password Charge your phone: If the battery is completely drained, the screen may appear black even when the phone is turned on Charge your phone for at least 30 minutes