iFixit - Answers With Device "MacBook Pro 16" 2021"

MacBook Pro 16" 2021: Removed command key, now it's flat, no spring, doesn't work

Thu, 19 Sep 2024 19:11:46 -0700

I removed the command key on my 2021 MBP because it was a little sticky and when I popped it back on, it goes all the way down - It's lower than the other keys. It doesn't spring up, and doesn't click anymore.

Is there a simple fix for this that I can do myself? I tried removing the key again and replacing it, but maybe I broke the bouncy mechanism when I pulled it off.

Thanks for your help!

2021 MBP with backlit magic keyboard

⟐ Answer accepted Eylül 19, 2024 at 19:11 GMT-7

MacBook Pro 16" 2021: Whats going on with my MacBook screen?

Mon, 26 Aug 2024 14:45:36 -0700

Hi,

I want to know what is wrong here? Is it screen itself or something else.

I just replaced the screen and I refuse to accept it from the repair store.

Videos:

https://drive.google.com/drive/folders/1...

Previous original damaged screen.

https://www.reddit.com/r/macbook/s/8rYZp...

Sorry for the links, for some reason I cannot upload media here.

⟐ Answer edited Ağustos 26, 2024 at 14:45 GMT-7

MacBook Pro 16" 2021: Remove display - use as desktop?

Wed, 17 Jul 2024 07:57:13 -0700

Has anyone removed the screen successfully and used as a desktop (2021 m1 max MBP 16")? I have a couple external displays and think this would be the best use of the machine. Is it as simple as removing the screen/disconnecting the cables?

1.5 years later my $4k macbook display cracked and went dead on its own. I believe the cause was a design flaw but thats here nor there! Apple's policy is any screen damage is accidental and is a $1k repair. I don't feel great dumping that money into a machine that could spontaneously crack and has me generally weary to begin with (strange hardware scratching, kernal panics, etc.

Thanks!
Greg

⟐ Answer accepted Temmuz 17, 2024 at 7:57 GMT-7

MacBook Pro 16" 2021: Keyboard backlight not working, even when enabled/in a dark place.

Sat, 11 May 2024 07:37:38 -0700

Hi. I purchased a refurbished A2485 MacBook (not from Apple though), M1 Pro, 16 inch, and everything seems to work except for the backlight on the keyboard. I'm new to MacOS, but from what my Mac friends have told me, the backlight brightness slider in control center/settings should have enabled it. Does anyone know if perhaps a simple ribbon cable could've come loose to cause this, or if I'm looking at board-level issues? I'm still within a year warranty from the seller, but I'd love to avoid the headache of returning it if there's something I could fix myself. I don't currently own the correct screwdriver set, but I wouldn't mind buying it if this is a common issue anyone's aware of.

To be clear, the backlight doesn't come on at any point. I've tried booting into safe mode and restarting several times but I've never seen it come on once. Ambient light sensor also seems to be working, because putting my thumb over the notch dims the display.

⟐ Commented Mayıs 11, 2024 at 7:37 GMT-7

MacBook Pro 16" 2021: My 16” MacBook Pro 2021 M1 Max turns off the screen after 8 seconds

Mon, 08 Apr 2024 16:30:48 -0700

At first it was intermittent black screens. The backlight and keyboard always stays on, and the screen always returns functional after opening and closing the lid. I also confirmed with HDMI output to another screen that the laptop itself does not go to sleep or standby. It will simply stop showing anything on screen. Sometimes when in a dark room, I can see some white washed out elements on the screen moving, especially my mouse. Any ideas on how to isolate this are appreciated. I do have access to specialised measuring equipment.

What can this be? When they tested it in the Apple Store they could not find any errors with the diagnostics. I am leaning towards a hardware problem. Does anyone know of such a system that cuts the video signal after 8 seconds?

I am thinking it could be a failing component on the logic board for power delivery or something similar. I honestly cannot pay the ridiculous fee Apple came up to fix this. They are also not entirely sure that a new screen fixes this.

I am a former PC repair technician and I am about willing to try anything (complex) to make it work again. Can someone point me in the right direction?

⟐ Answer edited Nisan 08, 2024 at 16:30 GMT-7

MacBook Pro 16" 2021: How to apply stretch adhesive to the replacement battery

Mon, 13 Nov 2023 13:19:36 -0700

I am wondering how to apply the stretch adhesive to the replacement battery just before placing the battery into the upper case? Does it need to be applied horizontally or vertically?

⟐ Commented Kasım 13, 2023 at 13:19 GMT-7

MacBook Pro 16" 2021: Is it possible to build this whole laptop on my own?

Mon, 09 Oct 2023 17:51:22 -0700

Hi there!

I am feeling a little experimental and was wondering if I bought every part of this laptop could I possibly turn it into a functional Macbook Pro?

⟐ Answer accepted Ekim 09, 2023 at 17:51 GMT-7

MacBook Pro 16" 2021: Is it worth it buying to repair?

Wed, 30 Aug 2023 15:28:04 -0700

Hi everyone,

I found MacBook Pro 16” M1 Max (32gb, 1tb) for 450 USD on marketplace ( in my country). The seller said it is unknown condition. He thought the problem was battery. So he took it to unauthorized service and they mess it up even more. And now it won’t even turn on.

So my question is should I risk buying and trying to fix it? Here are some pictures. Is something wrong (expect the battery)?

Thanks all for answers.

⟐ Answer edited Ağustos 30, 2023 at 15:28 GMT-7

MacBook Pro 16" 2021: No screen after installing ventura beta 13.5

Mon, 17 Jul 2023 15:48:13 -0700

I have a 2021 Apple MacBook Pro (16-inch, Apple M1 Pro chip with 10‑core CPU and 16‑core GPU, 16GB RAM, 512GB SSD) and after installing Ventura Version 13.5 Beta (22G5072a) I have no picture on my screen. I am able to work via an external monitor but can't get to the boot options on the external screen, I've tried with the screen plugged directly in via HDMI and via a replicator via usb c. Either way I'm plugged in the only screen I can get to is my login screen, I never see the apple logo or boot options. Any help would be greatly appreciated.

⟐ Answer edited Temmuz 17, 2023 at 15:48 GMT-7

MacBook Pro 16" 2021: What screws attach the bottom panel of the 2021 MacBook Pro (A2485)?

Sat, 01 Jul 2023 19:53:55 -0700

I am trying to identify exactly what screws Apple is using to attach the bottom panel of the 2021 MacBook Pro 16” (A2485). There are 8 screws in total. Any help is very much appreciated. Thanks!

⟐ Commented Temmuz 01, 2023 at 19:53 GMT-7

MacBook Pro 16" 2021: Keyboard and touchpad not working

Thu, 15 Jun 2023 15:35:08 -0700

Hey,

My MacBook Pro 2021 just broke a few days ago. Touchpad and keyboard started to not respond, then responded again, then no. Right now it's not working at all.

Once got a kernel panic too. I can't start the diagnostic tool because it says "Failed to start (or something like that)". well.

The Apple service told me it's liquid damage but I am pretty sure it's not the case.

Has anyone else had this and was able to repair it?

Everything working fine with an external mouse/keyboard.

⟐ Commented Haziran 15, 2023 at 15:35 GMT-7

MacBook Pro 16" 2021: I saw a little fly went inside the vent near the bottom dock icons

Mon, 15 May 2023 14:50:02 -0700

I think I saw a little fly bumped into my screen and went straight inside the vent. How do I check and get rid of the little fly inside my MacBook Pro 16 2021 laptop? I have the Pro Tech Toolkit. Do I need any replacement like reapplying the glues just to clean the vent?

⟐ Answered Mayıs 15, 2023 at 14:50 GMT-7

MacBook Pro 16" 2021: Sandisk Extreme pro SSD external hard drive but only can get 1000 MBps

Mon, 08 May 2023 20:45:37 -0700

Hi, I have 2000 MBps external ssd drive Sandisk Extreme Pro SSD and Im using MacBook Pro 2021 with thunderbolt 4, but only can get 1000 MBps rate tested through Blackmagic.

I tried to find an article with this issue but can’t find any.

⟐ Answer accepted Mayıs 08, 2023 at 20:45 GMT-7

MacBook Pro 16" 2021: M1 Max MacBook Pro not powering on or charging

Tue, 02 May 2023 15:16:47 -0700

On previous days my MacBook was crashing when closing the lid, kernel panicking with the error message "SOCD report detected: (Ap watchdog expired)"

I did some research about that code and it seemed to be about having external drives plugged in but I didn't have any external drives plugged in

It got worse over the span of a week until yesterday that the machine just completely died

No magsafe light, no power (power button press for 5, 10, 15 and 30 seconds even and no life, not even the trackpad clicking)

Decided to leave it with the lid closed for an hour and came back and the machine did boot, I thought it was a software issue and I decided to re install macOS to see if that helps

now the machine is absolutely useless, no boot and If I do the same of waiting an hour with the lid close I do get and Apple logo then a black screen with mouse clicking and then absolutely dead

What could it be?
Should I just take it to the Apple Store and not try anything else gladly I have apple care but if I can try anything before taking it apart would be appreciated

⟐ Commented Mayıs 02, 2023 at 15:16 GMT-7

MacBook Pro 16" 2021: Can this MacBook Pro be unlocked from the iCloud?

Fri, 21 Apr 2023 09:49:35 -0700

Is this one of those Mac’s you can unlock by soldering on a new chip, or do you have to replace the entire Logic Board?

⟐ Answered Nisan 21, 2023 at 9:49 GMT-7

MacBook Pro 16" 2021: iMessages can’t login

Thu, 16 Mar 2023 15:14:47 -0700

Used MBP 2018 before and used my iCloud account and iMessages. Bought MBP2020 and successfully logged in to iCloud but can’t login to iMessages. I enter my account logins and it keeps spinning constantly. Left it for a day and it was still spinning.

Used my other iCloud account and it logged in in few seconds.

I want to start using my other account but have 20.000 photos and it’s nightmare to move them all easily.

Doesn’t seem like Macbook problem, but rather iCloud issue. Tried contacting support but my country is unsupported.

⟐ Commented Mart 16, 2023 at 15:14 GMT-7

MacBook Pro 16" 2021: After Display Replacement, no power at all

Tue, 07 Mar 2023 07:12:55 -0700

I replaced an original display because the old one is broken.
I made every single step from the ifixt how to.

But now the macbook is not able to power on. nothing happens if I press the power button. If I plug in the power cable there is no light on the AC connector...

I already checked every step and every connection but nothing helps...

⟐ Commented Mart 07, 2023 at 7:12 GMT-7

MacBook Pro 16" 2021: Apple Self Service Repair 2021 MacBook Pro A2485

Sat, 03 Dec 2022 18:01:36 -0700

Hi, I have a broken 16" display but I can't afford to pay 850 to get it fixed - if I replace the display with a donor screen, from a dissembled identical model, will I lose any functionality/ will Apple add a watermark etc?

If it does lose functionality etc, has anyone used the self service repair website from Apple to order parts and use the software configuration process? I ask because I want to know if I buy the cheapest part that also requires a Software Configuration (Lid Angle Sensor), if this will then 'reset' the entire display to allow the device to work fully as normal?

Thanks for any help! :)

⟐ Answered Aralık 03, 2022 at 18:01 GMT-7

MacBook Pro 16" 2021: Logic board swap? MacBook Pro 16" A2485

Sat, 03 Dec 2022 17:49:24 -0700

Hi, is it possible to swap an M1 Pro logic board into another identical model without issue?

I have a 16" Macbook Pro 2021 (A2485) that has a cracked screen but I am able to buy a complete identical model laptop 'skeleton' (minus its original logic board) for less than the price of the repair at Apple.

If I transfer the logic board and Touch ID from my 'working laptop' with the cracked display, into the donor laptop shell, will everything work as normal or will I come up against a few issues?

Thanks!

⟐ Answered Aralık 03, 2022 at 17:49 GMT-7

MacBook Pro 16" 2021: May I copy my file from a MacBook with hardware issue?

Mon, 21 Nov 2022 14:58:37 -0700

Hi, my macbook doesn't start anymore. I think it's an hardware issue because I smell like something has burnt. I can't open it and repair because it's under warranty. Do you think I have any chance to copy my latest file like via usb c or some other way? I don't have a backup since months :(

⟐ Answer unaccepted Kasım 21, 2022 at 14:58 GMT-7