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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™
Xperia™ Companion on page 37.
Companion, see
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.
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 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, 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.
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.
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.
This is an internet version of this publication. © Print only for private use.
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