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 battery dies before reach 0%

My iPhone 4S battery is dying when it reaches 40% now it shuts down when it reaches 60%. I don't know what to do. Do I need a new battery??

Help please!

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First step would be battery replacement.

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Try a new battery out

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I also have the same problem. I went to the apple authorised servicer and they did a battery test and conclude that my battery is fine. It is the problem of software. But I've restored my phone in DFU mode and use it without installing any apps and the problem persists. I wonder why and how.

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