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1 L
ong press the power key.
2 In the menu that opens, tap Restart. The device restarts automatically.
To force the device to restart or shut down
1 Long press the power key and the volume up key at the same time until your
device vibrates.
2 Depending on whether you wish to force the device to restart or shut down,
proceed as follows.
• If you wish to force restart the device: Release the keys at this point. The device
restarts.
• If you wish to force shut down the device: Continue pressing the keys. After a few
more seconds, the device vibrates three times and turns o.
To perform a factory data reset
Note
To avoid permanent damage to your device, do not interrupt a factory data reset procedure.
1 Back up an
y important data that is saved on the internal memory of your device to
a memory card or other non-internal memory. If you have any encrypted les
stored on an SD card, you should also remove the encryption to ensure you can
still access them after the reset.
2 Find and tap Settings > System > Advanced > Reset options.
3 Tap Erase all data (factory reset) > Reset phone.
4 If required, draw your screen unlock pattern or enter your screen unlock password
or PIN to continue.
5 To conrm, tap Erase everything.
Hint
Your device does not revert to an earlier software version of Android when you perform a
f
actory data reset.
Repairing the device software
You can use Xperia Companion to repair your device’s software. If you forget your
screen unlock password, PIN or pattern, you can use the device repair feature in
Xperia Companion to erase the security layer. You need to provide your Google
account login details to perform this operation. By running the repair feature, you
reinstall software for your device and you may lose some personal data in the
process.
If your device seems to have frozen, restarts repeatedly or doesn’t start at all after
you’ve updated the Xperia software or after you’ve performed a software repair or
a factory data reset, try forcing the device to shut down then try turning it back on.
If the problem still exists, force the device to shut down then perform a software
repair.
Hint
When you receive a new Google account username or password, you might not be able to
use them t
o log in.
To repair the device software using Xperia Companion
Note
Before performing a software repair, make sure you know your Google account username
and pas
sword. Depending on your security settings, you may need to enter them in order to
restart the device after a software repair.
1 Make sure that Xperia Companion is installed on the computer.
2 Open the Xperia Companion software on the computer and click Software repair
on the main screen.
39
Int
ernet version. For personal use only.
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