Turn GPS on or off
Turn NFC on or off
Change screen brightness
If you want to update the software on your mobile phone, it's recommended you back up the phone memory.
Connect mobile phone and computer
Connect the data cable to the socket and to your computer's USB port.
Back up the phone memory
Start the program Sony PC Companion on your computer.
Click Backup & Restore.
Click OK and wait while the phone memory is backed up.
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