I have psp new slim 2006,want to downgrade from cfw 6.10 to cfw 5.55.I already use pandora batery and mms original from my friend cannot work.I create pandora batery from the original batery,the batery cannot hack and i use normally and the batery still not restore from the original with cut a tiny line from the board and cut 6th leg in chip...WHY...i think sony has block it...