Xiaomi Redmi Note 9

Xiaomi Redmi Note 9

Xiaomi Redmi Note 9

Android 10.0

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