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2020年11月に発売される13インチMacBook Airは、AppleのArmベースのM1 SoCを搭載し、8コアのCPUと最大8コアのGPUを搭載しています。(モデルA2337 / EMC 3598、Thunderbolt 3ポートを2つ搭載)

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Screen replaced - Just a black screen now

Hi,

I've recently replaced the screen on my 2020 13" Macbook Air M1, replacement went all fine, the thing boots, you get the chime, keyboard is backlit.

But, the screen is black. No backlight, nothing.

I've tried resetting SMC(?), NVRAM, power cycling to no avail.

Connecting to an external display, it works as intended (Currently mirrored), the internal screen is detected as it does show in Settings > Displays.

The webcam is working as I can unfortunately see myself when I open Facetime and get a preview.

I've tried reseating the cables again and still nothing.

Does anyone have any idea what this could be?

I bought the display from a UK eBay seller for £200 (rip me :( ) - contacted them to see what they say but it's strange.

Edit:
Also tried increasing/decreasing screen brightness and that didn't work.

Why was it replaced? The screen suffered a hit in the top right of it and damaged it, no water damage or damage to the body/keyboard.

Also tried shining a bright torch behind the Apple logo and nada. Is that even still a thing you can do?

Update (06/05/23)

Hi @danj,

Replying here where I can actually attach images.

Ooh that's interesting!

I've taken a few pictures (I hope they're okay!), to me they look fine but what are your thoughts, worth a shot of me replacing this?

Block Image
Block Image
Block Image

I promise the "goo" on some parts isn't liquid, feels more glue-y (not sticky like a soda)!

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@apoorsodlol - The cables contacts look OK, but the image is a bit washed out.

My guess is this is the last hurrah other than the logic boards connector which you won’t know until you pull it to replace the cable.

Do take the time to look over the backside as you had noted some sticky stuff, I don’t see anything around the connection but it might be on the other side.

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@danj,

Thanks Dan, I've got a replacement ordered so fingers are crossed, I'll let you know of the outcome.

さんによる

Hi @danj,

I've had the replacement part you linked come today, removed the logic board, underside of that looked all good, nothing sticky.

Fitted the new part, put it all back.... still nothing :(.

Do you think I should try the calibration again or do you have any other ideas?

Could it be it's just half dead now and I should just use it in clamshell mode?

Also, I still don't see anything taking a flashlight to it in a dim room.

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@apoorsodlol - Bummer! This truly doesn’t make sense!

We’ve gone down the display rabbit hole as far as we can now. So that only leave one more place to look which is the Hall Sensor logic! Here there is a magnet in the display that hits a spot on the uppercase to tell the logic board the lid is up as well as down. Clearly it’s stuck in the down sense state.

The sensor is part of the right speaker unit MacBook Air 13" (A2337, Late 2020) Right Speaker. So is it this side that got the worse of it when you dropped it?

さんによる

Hi @danj,

It was the right side that suffered the hit! The right speaker still works.

I'm willing to try replacing this too, as what's the worse that can happen?

Is that ol' trick of running a magnet across it still doable, just to see if it could be that and would I need to run the magnet across the keyboard side on the right?

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Are you able to see an image on an external display when in clam shell mode? If you do then the display is the problem.

That’s not to say the display is bad, it’s not programmed. Return it and get your money back. These jober sellers don’t know things have changed with the M series systems. These displays which sneak out the side door can’t be used.

You need to use the Apple suppled display part from their self repair offering Self-Servicing Account Program as you need access to the paywalled calibration tool as Apple has locked things down!

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Hi Dan,

I can confirm I can see an image on a external display when in clam shell mode.

That's rather unfortunate, I didn't know Apple locked down displays on Macbooks like that too.

I don't think the self-servicing stuff Apples offers is even available in the UK (Could be wrong, please do correct me).

At least I know the screen I bought works but is useless!

さんによる

@apoorsodlol - Sadly, Apples fight to the Right to Repair movement has driven them into the John Deere mode. So without access to the needed software tools you can’t fix things on your own using your own parts source. Now you’re being forced to use only Apple supplied parts.

You need to wake up your community on what is happening! Please support the Right to Repair with no strings attached!

FYI - ONGOING COVERAGE: Right-to-Repair Impact on Dealers, Deere, Other OEMs

さんによる

Hi @danj,

Hope you're good!

Just a quick one to see if you know a possible answer:

I returned my original placement screen from eBay and went through Apples Self Service Repair and got a new screen, done the system calibration with their support but my mac is still encountering the same issue, black display but webcam still works.

Self service support is rather lacking for this, I won't lie.

さんによる

@apoorsodlol - We that sucks!

So we know the display here is good and the calibration (serialized the display to the system) has happened. So we addressed the first issues.

So now we have a backlight logic issue which is surprising given what happened.

Let’s give this a try in a dimmed room do you see any glow from the display?

Using a flashlight pressed against the display at a sharp angle some of the light will find its way to the back of the LCD and bounce back. You should see a faint image of your desktop and its icons, do you see them?

さんによる

Hi @danj,

Firstly, thanks very much for your help so far, I do greatly appreciate it, you're a legend!

> Let’s give this a try in a dimmed room do you see any glow from the display?

Nothing, I got under the covers with it and the screen is just as black as it can be.

Same with taking a flashlight to it, tried multiple angles, locations and brightness (variable flashlight) and I don't see any sign of imagery on the display.

Rather annoyingly, Self Service Repair wants to initiate a return (that's ok on it's own) *but* I need to buy another(!) screen beforehand.

And if they deem the original one they sent is working, they'll ship it back and won't return the credit for it so I'd likely end up having 2 useless screens that I likely can't resell as they need calibration. Madness.

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Is there any progress on this?

iFixit has a guide for this, where Apple's Self-Servicing Account Program is not mentioned for the replacement to work. If you read the comments there, some were successful, some faced the same issues as mentioned here.

I'd like to replace my screen as well, but am unsure whether I need a screen from Apple's Self Service Repair or not...

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@thilobi - There is no easy answer here! The source of the replacement display is the issue. A virgin display which fall off the truck from the display maker to Apple is still missing the firmware which is held within the display so it won’t work properly. A good used display will work without any problems, but the TrueTone services won’t work.


Apple now forces people to buy the part from them as only they offer the needed tool to calibrate the display via a paywalled web site that will only work with your replacement display.

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I can confirm I never personally fixed this issue, the mac and official screen are just sitting on a shelf currently.

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Very interesting....

I have a 2020 M1 macbook air from a client. Screen was cracked. I bought a used one off ebay. Did the install and it worked great for a few months (July 2024), come end of Oct. 2024, I get a call the screen is black. You can see backlight, no damage. External display shows just fine in open and clam mode. I'm an old mac tech and didn't realize there was some system config to do to connect them via diag mode. I tried to get into diag and pick english BUT most the display isnt on the monitor, so I can't see confirmation buttons. This is unfortunate. Have to pay again to get a new "apple" screen

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To get the boot options to show I have to clam mode the laptop to get the external display to show, I was able to go into Diag mode, then join wifi, and continue to the system config test. I did the offline version and it just gave me a ambient light error and camera error, I assume because the lid was closed. Still no video on the lcd display. Going to order through the official repair store as the ebay used ones jumped in price to almost match it.

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apoorsodlol さん、ありがとうございました！
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