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苹果 iPhone 5s 于2013年9月10日公布。该设备的维修与以前的型号相似，需要螺丝刀和撬棒。可使用GSM或CDMA / 16、32或64 GB。颜色有银色、金色和太空灰。

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Screen backlight randomly shuts off

Hi! I recently got iPhone 5s, and after some time cracked my screen. It was ok for two weeks, and the in started to shut off the screen randomly. I can receive phone calls, notifications. The backlight randomly shuts off, and in bright light i can see, that the screen works. I can even type passcode and unlock it, when the screen black. Just now i swapped the screen with new one, and the problem is still there. I can make screen on longer by tapping it on back few times. Is there a way to fix it at home?

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open it again ,remove the screen and on the screen flex , you will see the very thin Backlight cable.

There should be something covering the 3 solder points of the backlight. if you don't see the 3 silver solder points on the flex then you will find they are covered with a small black piece of tape probably which is good.

however if you do see the solder joints exposed then this could be your issue .

i would start with that

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The tape is there on the new screen, and on the shattered one too.

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If you're having backlight issues on multiple screens then you most likely have a backlight circuit failure on the board. That is repairable by microsoldering. Most people outsource this work.

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