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A tiny light pops up on the top of the screen after replacement

Hi everyone, I bought a brand new screen, I replaced it and when I fit the screen into it’s place the small light appears on the top as if someone pushing that part from behind

It’s really visible everywhere and It drives me crazy.

I compared this part with the one on original screen and it looks like it’s a little bit thicker on the new one.

I’m not sure whether this makes the issue, but if I carefully push that part, the same corner I marked, that watermark appears on the screen, so when the screen is connected to logic board but not fully assembled there’s no light up there, but when I fit it in phone it appears immediately.

Furthermore, the proximity sensor looks like acting with little delay compared with the original one, as if it’s working slowly than usually but that’s not so important.

So what can I do to fix this issue with screen ?

Answered! View the answer I have this problem too

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Posted: Dec 10, 2018

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If I understand correctly, you’re replacement screen came populated with the FCAM/Sensor flex.

That white spot is a pressure point. If it always appears, then it can be caused by dust when the phone assembly was put together. If it only appears when the screen is fully inserted into the housing, then it could be an alignment issue (specifically that silver rectangle) or it could be caused by the pressure of the flex.

The Prox issue is probably just a bad FCAM/Sensor Flex.

It’s always better to transfer over the original FCAM flex, that way you maintain as many “original-quality” parts as possible. Those replacement small parts tend to have higher defect rates.

My advice would be to get a better quality screen.

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iPhone 6s

A tiny light pops up on the top of the screen after replacement

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