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苹果2016年对于专业用户的笔记本更新。具有15英寸,2880*1800的Retina显示器, 四核心 Intel Core i7处理器, 256 / 512 GB /1 TB / 2TB 存储空间, 16 GB 内存, 和一个带有Touch Bar的键盘。2016年11月发布,型号为 A1707。

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Ambient light sensor not working after screen replacement

I recently cracked my screen, and was told there is no apple-repair shop in my country. So I got a third party repair shop to get my MacBook Pro fixed. All seem to work fine, except my touch bar is to dim.

I found out that it was the ambient light sensor that is not working properly.

'automatically adjust the brightness' feature of my screen doesn't really work.

and I don't see the hole thats there for the ambient light sensor next(left) to the camera. (which im not sure if it supposed to be like that since I don't know what is supposed to look like)

---------------- my guess is the following:

I came to a conclusion that the whole is blocked. (from following tests)

Once I turned on the automatically adjust the brightness feature on, and

shine the light right into where the sensor is supposed to be at

- showed no response

Shine the light towards the direction where the sensor is supposed to be from the side through the camera hole, it seemed to work little bit. (the brightness was adjusting and so is the brightness for my touchbar) however, after I took away the light, it went dark again (even after I deactivated the auto brightness at the point when it was bright, which makes it the control point ).

is there any idea to fix this problem?

(I am not even sure if the "no hole" is the issue, its just my guess)

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4个答案

Apple uses the light entering the camera as the light sensor, my guess is that the camera is not functional … can you FaceTime & such?

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yes my camera works just fine. using FaceTime and other cam features just as fine

完成的

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I have the same issue, I replaced the screen myself ( with a screen from Aliexpress (I know bad idea but cheap)) result; also no kb backlight (only when set to manual in kb settings) but also the colors of the screen are off, I guess there is some sort of calibration stored in the display EDID eeprom (color profile set to “regular RGB” seems to fix it partly)

What I noticed is some light bleed when you look into the camera hole, hence my theory is that the sensor always sees enough light and therefore disables the kb backlight.

An SMC/PRAM reset did not work. After a software updating to 10.14.1 (latest) it worked again.

since my system started clogging up lately I decided to do a fresh install, everything worked, even the colors where accurate, but not for long, I did a reboot of the system everything went back to broken again. Now back to manual backlight control and off-colors,

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I am having the same issues. Had my screen replaced by a 3rd party seller and now my ambient light sensor isn’t working at all!

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i have the same issue

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Minsoo Kim 将永远感激不已
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