No automatic Brightness adjustment after screen replacement

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iPhone 6

这款4.7英寸iPhone于2014年9月19日发布，是iPhone 6 Plus的缩小版。

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Kevin K @kevik

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发帖于: 2017年9月25日

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No automatic Brightness adjustment after screen replacement

I changed my screen two days ago because of a cracked screen. I already bought not the cheapest replacement kit I could find.

Installing the new screen went great. But I noticed that the screen brightness wouldn't adjust automatically after that. I tried everything I could find online, from re-calibrating the brightness sensor, to turn the feature off, and soft reset the phone. I did not try to reset all my settings because that's what I'd like to keep.

Does anyone has a new idea?

I don't mind opening the phone up again to solve it.

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Steve @steve_g

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Second Life Systems, LLC

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发帖于: 2017年9月25日

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Your ambient light sensor is either bad or wasn't reinstalled correctly. Step 25 in this guide: iPhone 6 LCD屏幕面板的更换

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I bought an completely new display unit. Does it mean the display does not have a brightness sensor built in? And I have to replace it with the old one that worked in my broken display?

由 Kevin K 完成的 2017年9月26日

I have no way of knowing if your display has a brightness sensor built in. Where did you buy the display from? Is everything else (earpiece speaker, camera, etc) there? The brightness sensor is part of the camera flex cable.

由 Steve 完成的 2017年9月27日

In fact, it was the brightness sensor built into the new display. I changed the camera flex cable with the original one and it works perfectly fine now.

Thanks a lot.

由 Kevin K 完成的 2017年9月28日

i need brightness in screen

由 rahatshahana713 完成的 2020年12月27日

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I bought an completely new display unit. Does it mean the display does not have a brightness sensor built in? And I have to replace it with the old one that worked in my broken display? — Kevin K
I have no way of knowing if your display has a brightness sensor built in. Where did you buy the display from? Is everything else (earpiece speaker, camera, etc) there? The brightness sensor is part of the camera flex cable. — Steve
In fact, it was the brightness sensor built into the new display. I changed the camera flex cable with the original one and it works perfectly fine now.

Thanks a lot. — Kevin K

Ujjwal Vishwakarma @uvish 声誉积分: 1 1 · Answer 1 · 2018-05-08T09:21:51-07:00

Ujjwal Vishwakarma @uvish

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发帖于: 2018年5月8日

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It happens when your phone has Amoled or Oled display but the replacement screen you brought is probably a Chinese LCD . Amoled phones has different way to control brightness by varying brighness of each pixel and it cant support backlit control for LCD screens.

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Guido @guido23551 声誉积分: 1 · Answer 2 · 2018-10-03T21:29:01-07:00

Guido @guido23551

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发帖于: 2018年10月3日

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Hi! I bought a new screen for my iPhone 6S plus from ifixit and followed your suggestions by repleaceing the new brightness sensor with the old one , but it doesn’t work anyway…

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iPhone 6

No automatic Brightness adjustment after screen replacement

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