Sony Xperia S hard reset
Xperia S reset via MENU LT26i
Your device freezes or has fatal errors
Press and hold Camera key + volume up key+ power button together.
If this does not solve the problem, perform a factory data reset. In Idle mode, open the application list and select Settings > Privacy >Factory data reset > Reset phone > Erase everything.
Clear storage : Erase the credential contents from the device and reset the password
Set an unlock pattern lt26i xperia s
Once you set a screen lock, your device will require an unlock code each time you turn it on or unlock the touch screen
Settings > Location and security > Set screen lock > Pattern
If you forget your PIN or password, bring your • device to a Sony Service Centre to reset it.
Set an unlock PIN code "Sony Ericsson lt26i"
Settings > Location and security > Set screen lock > PIN
Set an unlock password Sony Ericsson Xperia S
Settings > Location and security > Set screen lock > Password.
firmware update with PC companion software
Download PC companion and install
Install PC companion on your PC computer. Follow instruction. For firmware update you need a micro USB cable. When the pc recognizing your XPERIA S it will install the necessary driver files.
After yourXPERIA S connected press Start / in Support Zone
You can also use Sony update service tool