Restarting and resetting
You can force your device to shut down in situations where it stops responding or won't
restart normally. No settings or personal data get deleted. You can also 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.
Your device may fail to restart if the battery level is low. Connect your device to a charger and
try restarting again.
To force the device to shut down
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1
Remove the back cover.
2
Press and hold down the OFF button using the tip of a pen or a similar object. The
device turns off automatically.
Do not use overly sharp objects that could damage the OFF button.
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
Before you start, be sure to back up any important data that is saved on the
internal memory of your device to a memory card or other non-internal memory.
2
From your Home screen, tap .
3
Find and tap
Settings > Backup & reset > Factory data reset.
4
To delete information, such as pictures and music, from your internal storage,
mark the
Erase internal storage checkbox.
5
Tap
Reset phone.
6
If required, draw your screen unlock pattern or enter your screen unlock password
or PIN to continue.
7
To confirm, tap
Erase everything.
If you forget your screen unlock password, PIN or pattern in step 6, you can use the device
repair feature in the
PC Companion
or
Sony Bridge for Mac
applications to erase this security
layer. By running the repair feature, you are reinstalling software for your device and you may
lose some personal data in the process.