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Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White. This page aims to help users troubleshoot, fix, and seek help for the iPhone 4.

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Error 16 then 23

My sons iphone was working fine until iTunes wanted him to update his phone to iOS 7.1.2. Now we get error 16, and then when we try to restore the phone to the original settings we get error 23. We have tried multiple computers.

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Have you tried DFU mode? Also sometimes a new battery and/or charge port will fix this issue. Other times it may not. If you have not tried a Mac I recommend trying that as it can sometimes bypass the errors you get on a PC.

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