apple iphone restore 3GS error code (-1)
Hi,
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???
Thanks
iPhone 3GS, iOS 5.0.1