por xda e encontrado esto
How I managed to fix it:
Rooted the phone with Universal Androot
Battery pulled the phone and then booted
Connected with adb shell
-su
# dd if=/dev/block/stl5 of=/sdcard/stl5.rfs
# dd if=/sdcard/stl5.rfs of=/dev/block/stl5
# reboot
http://forum.xda-developers.com/show....php?t=1145007