My son gave me his pwned iPhone 8G (1.1.4 (4A102)). I seem to have fubar-ed it in the short time I've had it. USB cabling to computer but computer (itunes) no longer recognizes the attachment. No apparent charging with wall charger either. Will not restore by normal button combo. I had upgraded my iTunes to 7.7 without thinking that might screw things up. Any ideas how to restore this unit, reinitialize, or anything like that. Thanks for your help. (Only other thing I did was to install Cydia last night, bad move? un-related?)