FIX Filesystem on IPAD 2

[fuad007]

Hi friends, something strange happens to my ipad, here´s the story

i was playing suddenly my ipad freezes, so i press home+power button to restart, the it restart, but whe password screen appears it keeps respringing in an infinite loop.

i did´t install nothing recently, to make me think is an incompatible app, so i don't know to do

i can access my ipad file system with ifunbox, so

1. There's something i can do with the filesystem to fix the problem, ex: modifying any files or something to boot normal

2. There's any way to reinstall ios 5.0.1, i have shsh

i will apreciate any help you can give, sincerely dont want to update to 5.1, i will lose everything

Thanks in advance for the help

Greets!!!