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Restarting, Resetting, and Repairing
You can force your device to restart or shut down if 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. This action is sometimes
necessary if your device stops functioning properly, but note that if you want to keep any
important data, you should first back up this data to a memory card or other non-internal
memory. For more information, see
If your device fails to turn on or you want to reset your device's software, you can use
Xperia™ Companion to repair your device. For more information on using Xperia™
Companion, see
To Restart Your Device
Your device may fail to restart if the battery level is low. Connect your device to a charger and
try restarting again.
1
Press and hold down the power key
2
In the menu that opens, tap Restart. The device restarts automatically.
To Force the Device to Restart or Shutdown
1
Press and hold down the power key
for 6 seconds.
2
Your device vibrates once. Depending on whether you wish to force the device to
restart or shut down, proceed as follows.
•
•
To Perform a Factory Data Reset
To avoid permanent damage to your device, do not interrupt a factory data reset procedure.
1
Back up any 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 files
stored on an SD card, you should also remove the encryption to ensure you can
still access them after the reset.
2
From your Home screen, tap
3
Find and tap Settings > Backup & reset > Factory data reset.
4
Tap Reset phone.
5
If required, draw your screen unlock pattern or enter your screen unlock password
or PIN to continue.
6
To confirm, tap Erase everything.
Repairing the Device 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 you can't turn off your device before performing a software repair, force it to shut down.
Downloaded from
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Xperia™ Companion on page 37.
If you are sharing a device with multiple users, you may need to log in as the owner, that is,
the primary user, to reset your device to its original factory settings.
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 off.
Your device does not revert to an earlier software version of Android™ when you perform a
factory data reset.
When you receive a new Google™ account username or password, you might not be able to
use them to log in to and recover your device for 72 hours.
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Backing Up and Restoring Content on page 40.
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and the volume up key at the same time
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