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Resetting and restarting
You can reset your device to its original factory settings, with or without deleting all of
your personal data. This action is sometimes necessary if your device stops
functioning properly. You can also force your device to shut down in situations where
it hangs or won't restart normally. When you restart a device after forcing it to shut
down, no settings or personal data get deleted.
Before you perform a reset, make sure to back up any important data saved on your device.
To perform a factory data reset
To avoid permanent damage to your device, do not restart your device while a reset procedure
is underway.
1
Drag the status bar downwards, then tap .
2
Find and tap Backup & reset> Factory data reset.
3
If you also want to erase data such as pictures and music, which is saved to
your device's internal storage, mark the Erase internal storage checkbox.
4
Tap Reset phone.
5
To confirm, tap Erase everything.
To force the device to shut down
1
Detach the cover of the micro SIM card slot.
2
Using the tip of a pen or a similar object, press and hold down the OFF button
until the device shuts down.
Do not use overly sharp objects that could damage the OFF button.
Battery and power management
Your device has an embedded battery. You can keep track of your battery
consumption and see which applications are using most power by checking the
battery usage menu. There are several ways to improve battery performance, for
example, by using STAMINA mode or Low battery mode.
For more information and tips about how to make the battery last longer, go to
www.sonymobile.com/support.
To check the battery level
1
From your Home screen, tap
.
2
Find and tap Settings > About phone > Status > Battery level.
To access the battery usage menu
1
From your Home screen, tap .
2
Find and tap Settings > Power management > Battery usage.
Improving battery performance
The following tips can help you improve battery performance:
•
Charge your device often. This will not affect the lifetime of the battery.
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