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Curious crashing behaviour in iPhone 5

iPhone 5.


Had been sent to 3rd party repair shop for power button repair. Harmful modifications may have been made.

Battery had been replaced before.

Phone had been self-opened to fix a certain problem. Help courtesy of iFixit.

Above operations were carried out at least a month before crashes started occurring. Most probably not the direct cause.


Crashes cause screen to half its brightness or develop bands of colours. Phone would be unresponsive, requiring a restart. Phone may restart itself automatically sometimes.


Crashes occur if i pinch the top of my phone, ie press the glass into the alum case. If care is taken to avoid the cause phone will not restart randomly.

I suspect a short circuit somewhere at the top of the phone, but cannot verify.

1) Would anyone know the possible locations of a short circuit?

2) Can anyone propose an alternative cause?

Thanks a lot.

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Sounds like the screen cables are shorting if your pressing top and glass then that's the cause .. The screen cables

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Jack LC estará eternamente agradecido.
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