Hi, I just received a replacement iPhone 4 for my old one which was defective. Problem is that I don't have AT&T anymore (and thus I do not have the sim card) and I'm not sure how to go about checking the firmware. Can anyone provide some insight? Thanks!
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How to determine firmware on non-activated iPhone 4?
- Thread starter StockDC2
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Plug the iphone on your computer and run tinyumbrella.
It will list its firmware and baseband installed.
It will list its firmware and baseband installed.
!