iFixit - Answers With Device "Apple Extended Keyboard A1243"

Apple Extended Keyboard A1243: I've got a few dead keys on this keyboard - any way to fix?

Fri, 18 Apr 2025 05:56:55 -0700

Hi, I’ve got one of these keyboard - I’m a fan of it in general. It’s pretty high mileage, and they don’t make em anymore. Nothing is obviously physically damaged; my “U” key and a handful of keys on the number pad are just dead. Anyone have any thoughts on fix? is there such a thing as a diagnostic app for Apple keyboards? Thanks!

⟐ Commented April 18, 2025 at 5:56 MST

Apple Extended Keyboard A1243: It no longer connects to any computer

Thu, 07 Jul 2022 05:38:51 -0700

I cleaned my keyboard and it stopped connecting to any computer. It first started by lagging, then it stopped working entirely. I attempted it on two different MacBooks, and it won’t connect.

⟐ Commented July 07, 2022 at 5:38 MST

Apple Extended Keyboard A1243: Apple Keyboard A1243 key S stop working

Thu, 02 Nov 2023 05:25:19 -0700

Hi guys,

suddenly my key S stop working (just S) no water damage etc... do you have any idea is this can be easily fixed or I should look for new one ? As I watch some video about disassemble and it's not 5 minutes job :(

Thank you for any ideas/advice.

⟐ Commented November 02, 2023 at 5:25 MST

Apple Extended Keyboard A1243: Water Damage on Keyboard

Thu, 26 Nov 2020 00:40:41 -0700

HELP! I spilled water on my keyboard 2 days ago! Now when I type in a 3, a period would come up! HELP! I do not want to replace it! I just need it repaired! Any suggestions on what to do?

⟐ Commented November 26, 2020 at 0:40 MST

Apple Extended Keyboard A1243: My - button on the 10 key transmits as +

Sat, 21 May 2022 01:49:46 -0700

The entire keyboard works fine with the exception of the " - " button on the 10 key. It transmits as " + " but so does the actual " + " key. Any way to fix this?

⟐ Answered May 21, 2022 at 1:49 MST

Apple Extended Keyboard A1243: Shift key doesn't work on the letter I/letter I and K

Fri, 18 Apr 2025 06:07:01 -0700

Ok, I know this sounds weird, but on my old iMac, the left shift key works fine for every letter except I and the right shift key works fine for every letter except I and K. Any idea why it would just be those key combinations that don't work? It even happens when you’re logging into the computer before it’s even finished starting up so I don’t think it’s anything with system settings, etc. Thanks in advance!

⟐ Answered April 18, 2025 at 6:07 MST

Apple Extended Keyboard A1243: Keyboard dead, won't recognized by computer

Fri, 29 Sep 2023 00:43:04 -0700

Hi, I saved this keyboard from the reciclyng yard since someone in my office has thrown it away. The reason is the keyboard is not recognized by any computer when plugged in the USB port. Even the led on the caps key won't turn on. I tried to open it in order to see if the USB cable was damaged but everything looks in order (I tested with a multimeter). Am I completely hopeless or is there something I could check in order to try a repair?

⟐ Answered September 29, 2023 at 0:43 MST

Apple Extended Keyboard A1243: I need a space bar any suggestions for this

Sun, 29 May 2022 07:45:18 -0700

Apple extended keyboard a1243

⟐ Answered May 29, 2022 at 7:45 MST

Apple Extended Keyboard A1243: Cut electrical wire cord for A1243

Tue, 02 Mar 2021 08:30:54 -0700

I need to know how to replace the cable or repair it.

⟐ Answered March 02, 2021 at 8:30 MST

Apple Extended Keyboard A1243: Apple wired keyboard with Numpad stopped working after power outage?

Wed, 04 Oct 2023 00:44:56 -0700

Hi, just like the title says, after the power outage my wired keyboard stopped working. Here's what I've tried so far;

SMC/NVRAM reset
All other USB ports on iMac
USB extension cable to all ports
Checked USB ports with another keyboard. It is worked, that's mean there are no problems with the ports.
Checked the broken Keyboard with PC, it didn't recognize (tried all ports on the PC, USB 2.0, USB 3.0)
Both USB ports (L/R) under the Keyboard also working
If I connect to another Keyboard to (L/R) under the Keyboard, it's working
Tried on Hackintosh, it didn't work

Another solution;

Power off the iMac
Disconnect all peripherals and Power
Hold down power button for 30 seconds
Reconnect power and turn on. Leave everything else disconnected.
Reconnect Keyboard
Repeat many times and this solution didn't work either

There is only one silly thing left that I didn't try, cos, this is the most stupid thing that I heard of. Washing Keyboard in the Dishwasher. I'm very close to try that.

Do you think it means the keyboard is short-circuited and can no longer be used?

What do you suggest more?

⟐ Answered October 04, 2023 at 0:44 MST

Apple Extended Keyboard A1243: Caps Lock, a, s, d, f, g stopped working at once

Sat, 23 Jan 2021 09:23:07 -0700

Hi, it is strange that those keys in one row stopped working all at one time. Is there any explanation? Many thanks for any help. Cheers, Jan

⟐ Commented January 23, 2021 at 9:23 MST

Apple Extended Keyboard A1243: What can I do when the key 2/@ is not typping?

Mon, 23 Nov 2020 07:59:48 -0700

The key 2/@ is not working well. Only clicking very hard. I also try to take off the key to clean it and was not that easy to get off. WHat should I do?

⟐ Answer edited November 23, 2020 at 7:59 MST

Apple Extended Keyboard A1243: Is there a way to open and clean this kb?

Sun, 20 Sep 2020 19:32:43 -0700

tea was spilled on the keyboard, i inmerse it on isopropil alcoho a few times but theres always some group of dead keys, each isopropil bath may change those keys. Is there a way to open this A1243 Apple KB?

⟐ Answered September 20, 2020 at 19:32 MST

Apple Extended Keyboard A1243: What to do when a rubber dome is broken off?

Sun, 06 Sep 2020 11:01:13 -0700

I mean the nipple-like part that I circled on this image (not mine, edited stock image)

. I lifted off the key cap to clean it, and somehow the nipple-like part was broken off from the rubber layer. I placed the nipple-like part at the centre as you see the image above, and put the key cap back. The key is working but is not springly any more.

It seems that opening this keyboard and replacing the entire rubber layer is nearly impossible (all glued together). The only way I could think of is using some kind of glue to attach the nipple-like thing on the transparent film on which a spiral shape circuit is printed, but I am not sure if it would stick to it (because the bottom of the nipple-like thing is hollow). Throwing away the whole keyboard just because that small silicon nipple is broken off seems to be a waste of resources. What is the best way?

⟐ Answered September 06, 2020 at 11:01 MST

Apple Extended Keyboard A1243: Space Button No Longer Pops Back Up

Fri, 13 Jan 2023 16:03:12 -0700

The space bar felt like it was stuck, so I followed instructions to remove it. I cleaned it, but there was no obvious ‘spring mechanism’. When I reassembled the space bar, there was not a change.

I took it back apart and it appears that the bump or ‘wart’ in the middle which is part of a ‘mat’ is supposed to supply the ‘spring’ and this rubber-like bump is torn.

Am I correct that is the issue? Can I replace the mat that has that bump?

Apple Extended Keyboard A1243: USB Device Not Recognized, Nothing Works and Caps Light Not Lit

Sat, 16 Jan 2021 18:55:46 -0700

I have an A1243 keyboard from 2007. I love this keyboard, however when I had it plugged into my iMac there was some static electricity that was felt off of the keyboard and now the keyboard does not work, the Caps Lock LED does not light up, however when plugging the keyboard into a Windows 10 PC I get a notification that the USB Device is not recognized. What could potentially be the problem, and is there a way to fix this? I have verified the problem is with the keyboard itself, not my Mac or PC.