Turn GPS on or off
Turn screen lock on or off
Change screen brightness
If your mobile phone is slow or freezes, it might help to restart it.
Restart your mobile phone
Tap and hold On/Off.
At the same time, tap and hold the upper part of the volume key until your mobile phone is turned off.
Tap and hold On/Off until your mobile phone is turned on.
If you're asked to key in your PIN, do so and tap the confirm icon. The default PIN is 1234.
Tap anywhere to dismiss
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