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Fourth generation wireless keyboard made by Apple. Released in October 2015. Model A1644.

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1 and 2 keys stopped working

I just recently acquired a pre-loved late-2015 21.5 iMac with A1644 keyboard. All worked 100% till just now when the 1 and 2 numeric keys stopped working. Not on their own nor when combined with shift. No liquid spills or the like. The overall condition of all components is like new - extremely well looked after. I’ve given it a shake, light tap in an attempt to dislodge whatever could possibly be stuck underneath it, but to no avail. Please help…

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I have the same problem. I disassembled the key to see if there was something damage. I could not retire the plastic bublbe, so, as far as I could see, there was nothing damage.

Solution: remap the keyboard using Karabiner-Elements assigning 1 and 2 to the F1 and F2 keys.

It would be interesting to know the reason of the failure, but I couldn't identify the root cause.

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You could try replacing the key parts if you think they are bad Magic Keyboard parts

If the issue is within the lower sections there is little you can do as Apple doesn’t make the part repairable. At which point your only hope is to find another keyboard.

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I have the same problem. I disassembled the key to see if there was something damage. I could not retire the plastic bublbe, so, as far as I could see, there was nothing damage.

Solution: remap the keyboard using Karabiner-Elements assigning 1 and 2 to the F1 and F2 keys.

It would be interesting to know the reason of the failure, but I couldn't identify the root cause.

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