Sony F8332 User Manual page 131

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™
Computer tool on page 123.
Companion, see
Your device may fail to restart if the battery level is low. Connect your device to a charger and
try restarting again.
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
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 shut down
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.
•
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.
To perform a factory data reset
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.
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.
To avoid permanent damage to your device, do not interrupt factory data reset procedure.
After the factory data reset you will lose access to all the encrypted files on your SD card.
Your device does not revert to an earlier software version of Android™ when you perform a
factory data reset.
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.
To repair the device software using Xperia™ Companion
Before performing a software repair, make sure you know your Google™ credentials.
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 your PC or Mac
2
Open the Xperia™ Companion software on the computer and press Software
repair on the main screen.
3
Follow the instructions that appear on the screen to reinstall the software and
complete the repair.
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and the volume up key at the same time
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