OPPO A91

OPPO A91

Android 9.0

Basic use - OPPO A91

Troubleshooting

My phone's battery life is short

Sound settings

Select ring tone
Turn silent mode on or off

Screen settings

Set date and time
Turn notifications on or off

Security codes

Turn use of PIN on or off
Turn use of phone lock code on or off

Software update

Update phone software
Restore factory default settings

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