iPhone 3g upgrading help!!!!
I'm having some problems with upgrading from one version to another.
I upgraded from iPhone 3G 3.1.3 to 4.2.1, with the ipad BB upgrade too.
After this however, the iphone kept freezing whenever I unplugged it. \
So I tried to downgrade to 4.1 but it kept freezing halfway through the restore in itunes, as an alternative I downgraded back to 3.1.3 which worked fine, but I need an unlock so I need to upgrade either to 4.1 or 4.2.1..
But from 3.1.3 now I cannot upgrade to either 4.x version.
Can someone please advise me what to do!?!?