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原帖由: tabormeister ,

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I had this same problem. Multiple restores, cleaned and reseated contacts, to no avail. I decided to try downgrading to 3.1.3, and after downloading an ipsw, trying to restore with it and getting an error, I restored to 4.2.1 without issue, bottom working perfectly. I'm not offering this as a tutorial as I'm mainly an Android guy, but it definitely worked for me.

Cheers,

tabormeister

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