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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 shut down
1
Open the cover for the nano SIM card and memory card slot.
2
Using the tip of a pen or a similar object, press and hold down the OFF button for
a few 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
Before you start, make 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. Factory data reset will
erase all data from your device's internal storage, and you will not be able to access the files
on any of your encrypted SD cards again.
To avoid permanent damage to your device, do not restart your device while a reset procedure
is underway.
1
From your Homescreen, tap
2
Find and tap Settings > Backup & reset > Factory data reset.
3
Tap Reset phone.
4
If required, draw your screen unlock pattern or enter your screen unlock password
or PIN to continue.
5
To confirm, tap Erase everything.
Your device does not revert to an earlier software version of Android™ when you perform a
factory data reset.
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.
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.
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.
To Repair the Device Software Using Xperia™ Companion
Before performing a software repair, make sure you know your Google™ account username
and password. Depending on your security settings, you may need to enter them in order to
restart the device after a software repair.
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