Welcome to Apple iPhone news and Chat discussion forums. iPhone Discussions is dedicated to iPhone,Talk about iPhone modifications,software,reviews,Support, iPhone news , iphone mobile,iPhone OS and more...
If you have a Mac: http://support.apple.com/kb/TS1591
If you have Windows: http://support.apple.com/kb/TS1538
king Niko wrote:
my i-phone 4s just keep restarting over and over agin and i have no idea what to my computer wont connect to my i-phone, what should i do?
Before you go to an Apple store try this: http://support.apple.com/kb/HT1808
king Niko wrote:
i bought it off craigslist and i think it was stolen but it wasnt reported stolen thoe and it was unlocked and jail broken
Ah, that changes things a lot. Try entering the serial number here: https://selfsolve.apple.com/agreementWarrantyDynamic.do
This will tell you whether or not Apple will exchange it. If it was jailbroken the only option is to restore from DFU mode. Google is your friend.
If you enter the serial number it will tell you if the phone has been decommissioned. It will also tell you if it is still in warranty.

Reply something about my i-phone 4s just keep restarting over and over agin and i have no idea what to my computer wont connect to my i-phone what should i or Post a New Thread