Restarting And Resetting Your Device - Sony D6643 User Manual

To Run a Specific Diagnostic Test
1
From your Homescreen, tap
2 Find and tap Settings > About phone > Diagnostics > Test .
3
Select a test from the list.
4 Follow the instructions and tap Yes or No to confirm if a feature works.
To Run all Diagnostic Tests
1
From your Homescreen, tap
2 Find and tap Settings > About phone > Diagnostics > Test > Run all.
3 Follow the instructions and tap Yes or No to confirm if a feature works.
To View Details about Your Device
1
From your Homescreen, tap
2 Find and tap Settings > About phone > Diagnostics > Facts.

Restarting and resetting your device

You can force your device to restart or shut down in situations where 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 have to first back up this data to a memory card or other non-
internal memory. For more information, see
page 140.
If your device fails to power 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 tools on page 136.
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 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 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.
This is an Internet version of this publication. © Print only for private use.
.
.
.
Backing up and Restoring Content on
.
143