New lcd only works with digitizer unplugged?

Question

iPhone 5c

Apple iPhone 5c는 2013년 9월 10일에 발표되었습니다. 수리는 이전 모델과 유사하며 스크류 드라이버 및 비집는 도구가 필요합니다. GSM 또는 CDMA / 8, 16, 32GB / 흰색, 분홍색, 노란색, 파란색 및 녹색으로 제공하였습니다.

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ollie @ollie39096

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게시일: 2014년 9월 6일

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New lcd only works with digitizer unplugged?

Hi guys, i am fairly experienced in mobile phone repairs but am having an issue with a replacement screen on a 5C. Customer had cracked glass on old screen but was otherwise working fine, LCD and digi both fine. I fitted a new LCD/digi when i powered it up i got back lights but no LCD. Presumed it was a faulty part so picked up another. Exactly the same issue. Concerned id damaged logic board i refitted original cracked screen. All fine. Puzzled i played around and found that both of the replacement LCDs work fine if i leave the digi flex unplugged. Tried disconnecting and reconnecting battery and a soft reset with no joy. Have i just been unlucky and got 2 faulty screens, can a faulty digi prevent LCD from working?

Thanks in advance

Ollie

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con @con82159 평판: 37.6k IRepair iphones 22 51 42 · Answer 1 · 2014-09-06T06:56:56-07:00

con @con82159

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I would try a good known working 5c screen not the cracked one..

I'm guessing the screens are faulty no other explanation for it

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Michael Thomas @mthomas1294 평판: 55 2 · Answer 2 · 2016-01-07T10:33:46-07:00

I just had this same exact problem and I too have been working on phones for some time now. When I finally realized that the LCD worked without the digitizer then I took a close look at the digitizer connection and sure enough it was busted. The top of the connector on the motherboard looked like it was pressed down a little too hard and the metal pins at the top looked partially out of place. So that could be the same issue you are having. I'm going to try and solder the connector back together and see how that goes.

Ok so soldering didn't do anything but the next day I plugged it all back in and placed some pressure on the digitizer connection and it booted up fine. I bumped the phone a couple times to make sure that it wouldn't come loose and haven't had a problem since. The image attached is the connector and notice how the top of it is a little crooked.