Error 28 hardware problem, how do I fix it?
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a guy says its the dock connector problem, but i really do not wanna buy the part unless i am really sure, thank you
It really isn't necessarily a hardware problem. Try getting the phone into DFU mode (hold down home button and then plug into USB plugged into computer) and restore it. If that doesn't work there's another thing you can try but it's kind of complicated. Let me know if it works.