HT201413: Resolve issues between iTunes and third-party security software

Learn about Resolve issues between iTunes and third-party security software
ibarki

Q: Impossible to upgrade iOS on an old iPhone. Can anyone help?

I have an old iPhone3 and I am trying to update the system, but I keep getting unknown message error -1. Any suggestion? Thanks.

iPhone 3G, iOS 2.x

Posted on Mar 24, 2014 1:07 AM