Revamped version of the iPhone 3G with faster processing speeds. Repair of this device is similar to the 3G, and requires simple screwdrivers and prying tools. Model A1303 / 16 or 32 GB capacity / black or white plastic back.

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Why it doesn't have a signal?

Why my iPhone 3GS has weak signal?

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First check that flex connector #7, a snap top connector is correctly connected to logic board connector. Both copper metal pins need to be touching metal bezel firmly. These are the first places to check. Before opening and during all repairs of iPhone 3GS make sure iPhone is OFF.

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Edgar reyes will be eternally grateful.
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