To force the device to shut down
1
Remove the SIM and memory card cover.
2
Using the tip of a pen or a similar object, press and hold down the OFF button
for about 10 seconds.
3
After your device emits a series of three quick vibrations, release the OFF
button. 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 Homescreen, tap .
3
Find and tap
Settings
>
Backup & reset
>
Factory data reset
.
4
To delete information such as music and pictures from your internal storage,
mark the relevant 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
.
Your device does not revert to an earlier software version of Android™ even if you perform a
factory data reset.
If you forget your screen unlock password, PIN or pattern in step 6, you can use the device
repair feature in PC Companion or Sony Bridge for Mac to erase the security layer. By running
the repair feature, you are reinstalling software for your device and you may lose some
personal data in the process.
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