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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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iPhone 4 no service after repair

Hello, I am Italian and I would get help from your site because it seems to me the best in repair iphone.

I disassembled my iphone to replace the speaker.

after installation I discovered that my signal was always "no service"

I tried to upgrade and restore my iphone several times but without results.

when I am out of the house where the signal is very strong then receive my iphone 3G 2 bars at most.

What should I do? is a hardware problem or software?

please help I'm going crazy without my iphone.

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f you have opened iPhone then more likely you have not assembled properly or dirt from your fingers is on inside parts. This may be stopping good 3G signal. You need to open phone again, carefully clean any metal parts, check the 3 metal prongs on dock connector are under the metal midframe and that White wire is on the connector properly. I would use the guides that are linked on the right under the photo.. Try dock connector or front display. Good luck

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