In our description database there are 4 solutions for performing hard reset for Sony Xperia T.
Choose the first method and follow the steps to perform a hard reset. If the first solution does not work, try the next method.
Please remember! Hard reset will delete any and all data your device contains; like pictures, contacts, messages, apps etc. Everything. Sony Xperia T device will be brought back to the same configuration as that of a brand new device.
1. Power on the phone.
2. Go to Menu > Settings > Backup & Reset.
3. Continue by selecting Factory Data Reset > Reset Phone > Erase Everything > Ok.
4. Now just allow the phone to reset'n'restart. Done!