10 Replies Latest reply: Oct 25, 2012 10:55 AM by cajundawn
wudokai Level 1 Level 1 (0 points)



I have an Iphone 3gs on contract with network 3.  I passed my phone to a friend as he said he will update it and install some apps for me, now he has given it to me back and said it isn't working.


I dont know exactly what he has done but I have read up on google about entering DFU mode and doing a factory restore, but when it gets to the very end I get error code (-1) unknown error?


Can anyone help me out and put a guess/finger on what he has possibly done and what I could do to resolve the matter???



iPhone 3GS, iOS 5.0.1