[TUT] Recovering your Xperia U without deleting anytihng

Item Needed:

• Sony Erricson Xperia Flasher or Downlaod from here http://androxyde.github.com/Flashtool/
• Official firmware provided by Sony. You can download XU firmware from here http://www.xdafileserver.nl/index.php?dir=Sony+%28Ericsson%29%2FSE+Xperia+U+%28LT25i%29%2FSTOCK+ROMS
• And absolutely your Xperia U :P

Method 1: Using Clockworkmod

1. Reboot your device 
2. Keep on press Volume up rocker before 
3. Select backup and restore
4. Select Restore [If u have already backed up]
5. Then Done

Method 2: Flashtool [With ScreenShots]

1.Open Flashtool. And select the Thunder icon http://i.imgur.com/YFhGO.png

2. Select flashmode http://i.imgur.com/Rgi86.png

3. Select the what i have selected http://i.imgur.com/EEk7G.png

4. Select Ok to flash http://i.imgur.com/hTqtT.png

It will not take time depending on transfer speed. May be 2-5 min

Source: Xperia U facebook group

https://www.facebook.com/groups/st25i/files/