restoring my device

hello,
i was interested to understand more about ios system and how it works by editing and moving around my device files
so i renamed system caches folder to try something out and now i got myself into a trouble
device is stuck at recovery mode and itunes wants me to restore by updating, i dont have the restore from backup option i dont wanna lose all my data and jailbroken stuff
however i thought of giving my last try to ask you here of any solution to get out of recovery mode
i tried the common method and it took me to apple logo but went back to recovery mode, i think its cus caches folder isn't loading so it caused it

what to do ?
i have my ios 5.0.1 shsh blobs but i also heard its not possible to use them anymore

 

it's an ipad 2, i know this is the wrong section but sorry i just wanted an instant help since i cant keep my device off for long ;/