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iPhone4S是第五代iPhone。网络制式为GSM/CDMA ,存储容量有8GB、16GB、32GB、64GB可选,机身颜色有黑色、白色可选。维修iPhone4S是容易的,需要耐心,用到的工具有螺丝刀、撬棒等。

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iPhone 4s working but blank screen

Hi all, got an iphone 4s which is working but the screen is blank. Put in a new LCD screen but still have the same problem. New dock connector and new battery but still no luck. Drop in a logic board from another iphone 4s, works well. The problem must be with the logic board. What am I looking for or could it be something else? Have restored it with ITunes, no luck.

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Possible damage to the lcd board connector. This can be fixed with a steady hand and expertise in soldering small components.

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