Hi, I just upgraded my iPhone 3GS to ios 5 and before that i did the backup and during the upgrade another backup was done too. My problem is choose new iphone and i don't know how my backup files were encrypted and i now need a password to unlock them, so stupidly i deleted the backup i did with the lock and tried to use the backup that the upgrade does but still i need a password which i have no idea about. now i have only the apps but no contacts at all. im in deep shit pls help.