No backlight during boot time.

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MacBook Pro（13 英寸，配备 Retina 显示屏2015 年初期）

2015年3月更新的 13 英寸 MacBook Pro 配备 Retina 显示屏，型号为A1502，采用第五代英特尔酷睿 i5 和 i7 处理器，并配备 Force Touch触控板。

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VanishingTacos @vanishingtacos

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发帖于: 2019年10月21日

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No backlight during boot time.

I just got the screen replaced on my Early 2015 Macbook Pro and I noticed that I do not get backlight whenever I boot the computer. I can not see the Apple logo unless I shine a light through the back of the display. I also have an encryption password that I have to enter whenever I turn my computer on and I can not see any of that unless I shine a light through the back. When in the multi-boot picker I got no backlight as well.

However, I can get backlight when I am fully in recovery mode and when I am fully logged in. The backlight works flawlessly when I am fully logged in and never flickers or anything.

I have already tried to reset the SMC and NVRAM but that does not seem to fix the issue.

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arbaman @arbaman

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发帖于: 2019年10月21日

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You’re likely having a problem with EDID of the screen you replaced. Unless you’re able to edit EDID data you’ll have to keep it as it is, no reset of sorts will fix the issue. Or you can replace the screen with a suitable one.

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5条评论:

yeah i heard about this as well, you can buy a programmer and do it, but the programmers are really expensive and it is not easy to do.

由 Vipaha 完成的 2019年10月21日

You are probably right. I am going to see the tech that replaced the screen in the first place and hopefully, they won't give me a hard time about it since I already paid them a boatload of money.

由 VanishingTacos 完成的 2019年10月22日

Sooo... I just found out that if I closed the lid whenever I am in the boot menu or something else then the Apple logo kicks on and then I get backlight..... I am more confused.

由 VanishingTacos 完成的 2020年4月27日

I'm also having the same issue, but would like to know more about the EDID programmer and where I can find one. Can someone point me in the right direction?

由 Grant Love 完成的 2020年5月21日

I'm facing the same issue. Apple offered Mainboard and Screen replacement for almost a new Macbook Air price.

Do you find any solution for this issue?

由 Gökhan 完成的 2021年6月17日

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yeah i heard about this as well, you can buy a programmer and do it, but the programmers are really expensive and it is not easy to do. — Vipaha
You are probably right. I am going to see the tech that replaced the screen in the first place and hopefully, they won't give me a hard time about it since I already paid them a boatload of money. — VanishingTacos
Sooo... I just found out that if I closed the lid whenever I am in the boot menu or something else then the Apple logo kicks on and then I get backlight..... I am more confused. — VanishingTacos
I'm also having the same issue, but would like to know more about the EDID programmer and where I can find one. Can someone point me in the right direction? — Grant Love
I'm facing the same issue. Apple offered Mainboard and Screen replacement for almost a new Macbook Air price.

Do you find any solution for this issue? — Gökhan

MacBook Pro（13 英寸，配备 Retina 显示屏2015 年初期）

No backlight during boot time.

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