iFixit - Answers With Device "Mac Hardware"

Apple Magic Keyboard: Cómo reemplazar una tecla de este teclado?

Fri, 01 May 2026 04:07:29 -0700

Esta guía sirve perfectamente para reemplazar las teclas de este teclado.

This guide is perfect for replacing the keys on this keyboard.

https://es.ifixit.com/Gu%C3%ADa/C%C3%B3m...

Apple Cinema Display M8149: Screen powers on and button works, but no image

Sun, 08 Mar 2026 23:34:57 -0700

My screen powers on, the power button works controlling the Mac, and the USB ports work, but there is no image on the screen. Before I disassemble this, is it a completely dead unit, or something that may be reapairable?

Apple Cinema HD Display: possibly dead 23" acd logic board

Tue, 16 Dec 2025 16:01:20 -0700

Hey guys! I recently got a 23 inch Apple Cinema Display (A1082) aluminum without a power brick. Found an alternative adapter that also supplies 24V and 5A. But it might have fried a component on the display's motherboard. Took out the board and found the U1 chip blown. Anyone knows what that does, and if it is replaceable or the whole board is toast?

*Took out the chip in case I ever find one from a donor board, but would still like to know if it's worth the extra hassle.

Apple LED Cinema Display 27": Display flickers and won't turn on, but occasionally can stay on

Thu, 27 Nov 2025 19:11:54 -0700

When plugging the display into the computer, it usually flickers on the backlight then turns off quickly. Everything else works, the screen is showing picture and playing audio, just no backlight. But after unplugging and plugging a bunch of times, it will stay on and keep that way for weeks. It's only possible to get it to stay on if the USB is not plugged in.

I assume this is a power supply issue with how other things being plugged in affect it, and I already tried replacing the logic board which did not fix it. Is there any other ideas on this, where I could look to repair on this power supply board? Thank you in advance!

Apple MagSafe2 Power Adapter: Dim Orange charging light

Sun, 05 Oct 2025 19:10:47 -0700

Original Apple 85w charger, clean like new, no damage or bends on the cable, the Pins on the connector and the charging port are spotless clean but the orange light when charging is quite dim (Green light is bright OK), It is charging the MacBook as per normal and is not getting hot. I tested the MacBook with another charger and it is much brighter (normal). The battery is getting old and will be replaced when the replace now message comes (910 CC 74%). What is possibly causing this? Dying charger?

⟐ Edited by author October 05, 2025 at 19:10 MST

Apple Lightning to Headphone Jack Adapter: MW2Q3ZM/A (Headphone to USB-C adapter cable) is it also a DAC?

Mon, 22 Sep 2025 14:32:40 -0700

Does the "USB-C to 3.5mm Headphone Jack Adapter" (SKU: MW2Q3ZM/A) have a built-in "sound card" or is it just a plain adapter cable?

There is no hint on Apple's site of it being a DAC also.

Thanks.

⟐ Edited September 22, 2025 at 14:32 MST

Apple Display: Replace Apple Studio Display Screen

Tue, 16 Sep 2025 07:24:25 -0700

I cracked my display. Apple wants $1100 to repair it, which obviously is not worth it. I see you can get a replacement screen such as:

https://www.amazon.com/LCDOLED-Replaceme...

Is this the same panel as the original? Is this doable to replace myself? I took a 5k iMac apart before to replace a hard drive, which required taking literally every part off, including the display, so I'm pretty comfortable with fixes like that, but not sure how the Studio Display compares.

⟐ Edited by author September 16, 2025 at 7:24 MST

Apple USB Power Adapter: Apple 61W USB-C Power Adapter for MacBook Pro

Sun, 31 Aug 2025 14:55:27 -0700

My charger didn't work at all, I opened it and I found the part that isn't working is 821-00953-A which is shown here in the pictures, How can find this part??

⟐ Commented August 31, 2025 at 14:55 MST

Magic Keyboard: Bluetooth is not working and cannot be found.

Thu, 14 Aug 2025 06:56:15 -0700

Bluetooth isn't working and can't be found. What could be causing this?

⟐ Commented August 14, 2025 at 6:56 MST

Apple Magic Keyboard A1843: Bluetooth not working on Apple Magic Keyboard A1843

Fri, 20 Jun 2025 10:42:12 -0700

My Apple Magic Keyboard A1843 only works when connected via cable to my computer. Bluetooth doesn’t seem to function at all.

I’ve already tried the following:

Resetting the keyboard
Removing (“forgetting”) the device from Bluetooth settings on all other devices
Ensuring the keyboard is fully charged

Despite these steps, the keyboard still won’t connect wirelessly. Has anyone experienced this before or have suggestions on what else I could try?

Apple Time Capsule Model A1254: Stripped 2 of the screws on the bottom case.

Tue, 16 Jul 2024 19:18:40 -0700

What size are the replacements and where to purchase?

Apple wired aluminum keyboard (extended): when I connect my keyboard, the star button is pressed repeatedtly

Mon, 08 Jul 2024 09:02:57 -0700

When i connect my apple keyboard to my laptop the asterik sign * or star star appears in my search, and it is pressed repeatedly. only the star sign button is pressed not others.

Apple LED Cinema Display: A1267 with backlight issues

Sun, 07 Jul 2024 07:58:25 -0700

I have the same problem , so I will repair it.

I bought LED light checker , test result is each stripe 54V shown.

I found one of boost schottky diode ( STR0+ ) exploded. also mosfet has burned.

according to A1267's service manual I can find 24.5v and 15V from PSU into MLB.

I need to clarify "Power Source voltage firstly". please tell me some data if you have a exprience.

Question:

PSU Connector's Pin voltages: Can you tell me correct voltage each connect pin on MLB ?
- now I measured pin#1 : 24.5 V , pin#2 : 24.5 v ( tied up pin#1 ) , pin#3: GND , pint#4 : GND ( tied up pin#3 ) , pin#5 : ? , pint#6 : ? , pint#7 : ?
Back Light LED test result
- I can read about 54v each stripe by Back light Test. I guess back light well.

I am going to exchange 540N Boost MOSFET and B2100 schottky diode and HV9982 controller.

firstly I have to check power source of back light , locally I guess PSU provide 24.5V.

order to check TP11 --> TP12 --> TP81 and STR0+

anyone who know proper parts?

Mosfet part : Rds value ?
Schottky Diode part : Vd value ?

⟐ Edited July 07, 2024 at 7:58 MST

Apple Adapter: 85W Magsafe Power Adapter - A1343 - cable replacement

Sun, 23 Jun 2024 09:54:40 -0700

Hi,

I change many power supply's cables, but it a new model. It has got yellow felt cover is soldered. I don't remember, I didn't look at it before I soldered it out. Should the soldering of the two points meet? I circled the picture. One is the black cable that goes to the magnet, and the other is the point of the copper covering.

Apple Extended Keyboard: Who can repair an old Apple keyboard?

Fri, 10 May 2024 13:08:59 -0700

I have a wireless extended keyboard dating from several years ago. In recent months when I switch on my iMac, wireless mouse, and keyboard I get a message "Keyboard not connected." I've had to go to Bluetooth, click the "Keyboard not connected " under Devices, then switch the keyboard on and off several times before I see "connected," or sometimes numbers to type in and press Return, in order to connect.

I decided to buy a new keyboard from Apple. But this is slimline, not as wide as the extended keyboard with raised keys, with the keys in slightly different positions, It has proved hopeless when I touch type, which I could do with speed, on my old one.

Do you know anyone who can repair my old keyboard with its raised keys?

AirPort Time Capsule A1470: Weird behavior after HDD replacement

Mon, 25 Dec 2023 10:44:24 -0700

Hi !

To keep it short, I got a 5G AP Time Capsule for several years now. Until recently the TC was working like a charm with the original 2To Seagate HDD.

I bought first a 12TB HDD (Seagate Exos X16) to replace the 2TB that was on the TC. I have tested the disk before mounting it on Windows (CrystalDiskInfo) and also on MacOS (DriveDX/Disk Utility/Disk Drill Disk Tool). All seems to be clear. I have done it several time because of the noise that was weird to me (but it has been a while since I din't heard a HDD scratching).

Well, the mounting was done smoothly and the configuration also. Btw I configured it as follow :
- Static Internet connexion with assign IP
- Wireless OFF, I don't need it
- Network mode is bridge
- Extra details : TC is plugged with c5e ethernet cable and I am using Catalin (10.15.7)

Now, the issue... Its driving me crazy because I can't manage to isolate the cause. Everything seems to work "just fine" (LED is full green) but when I am launching the first save (~550Go), the TC is rebooting randomly. It could happen around 100Go or at the beginning. So since few days, I wasn't able to complete the first save.
The weirdest thing, and this is where I am totally lost, is than every time the TC is rebooting, is making my router reboot aswell... So I am loosing WAN in top of that. How is that possible ? Like if it was the opposite of magic packet...

Here is what I have tried so far :
- Factory reset several time the TC . Turning the Wifi On, DHCP Internet. Erasing the disk. Doing it only with a ethernet cable between my MBPro and the TC. Résultat = NOK. Same issue.

Here is what I am going to try :
- Putting back the original disk to see if the issue is still happening. If yes, I am going to send back the drive.

If anyone has already encounter this issue and know any details about that, it will be appreciated. Thank you very much for your help.

⟐ Edited by author December 25, 2023 at 10:44 MST

Magic Mouse 2: Why does my mouse stay on when the switch is off?

Fri, 13 Oct 2023 15:01:45 -0700

My Magic Mouse 2 will sometimes stay off even when I've switched it off. It will still move the cursor on my Mac and is obviously still connected to Bluetooth. It doesn't look like ifixit offers a replacement switch. I suppose I'll open it up and clean it, but any advice would be helpful.

Apple Mighty Mouse: Mouse doesn't turn on after a horrible battery leak.

Sat, 26 Aug 2023 05:05:22 -0700

I have a Mighty Mouse. It suffered from a battery leak when it was in the hands of somebody else. I took it and tried to connect it to my Mac, it kept disconnecting and showed the battery percentage of the mouse wrong. Recently I tried to connect it my iPad and it worked.. but I spoke too soon, and the mouse again stopped working after a week. I opened it and saw there was not much a battery acid damage out there. I tried cleaning the negative contact points but it didn't work. I would like my mouse to be working again.

I saw that one of the screws has been totally covered in acid.

Apple Cinema HD Display: High-pitched tone when display is off

Wed, 23 Aug 2023 08:22:12 -0700

When the display is off, the power supply is giving off a high-pitched tone. Is this normal, and is there any way to fix this?

Apple Magic Keyboard: Replace the metal bracket (hook) with something else?

Mon, 14 Aug 2023 06:25:29 -0700

I have taken off the space bar of my Magic Keyboard, but broke one of the little metal brackets (one of the four little things as highlighted in the Ytube screenshot, i don't want to open the space bar again and risk losing the other 3) during the process. Now the space bar just sits on the bottom without being able to bounce back. Is it possible to fix this? Maybe replace the bracket (hook) with something else?

⟐ Edited by author August 14, 2023 at 6:25 MST