Hello, my backspace and enter keys suddenly stopped working. I have done a PRAM reset and used the keyboard viewer to see if the buttons work and they don't. The PRAM reset didn't work either

Did you try a System Management Controller - reset? On another note, if you have

a wired USB keyboard, other troubleshooting can be performed on the entire Mac.

Items such as SafeBoot and other keyboard shortcuts do better with wired USB.

•Intel-based Macs: Resetting the System Management Controller (SMC)

Also, there are a few times when you may have to check the Sync with the BT device

and maybe even check batteries, then re-sync the keyboard as though it hadn't been.

At times, a second user account may be helpful in troubleshooting some issues.

Good luck & happy computing! 🙂

For my computers, though some of them support BlueTooth devices and accessories,

my preference and economy of standard, is to have wired USB and also use powered

USB hubs for accessories.

I've used USB wired keyboards and mouse products; and some I've bought from the

original owners who had upgraded to BT, and never used the new Apple USB model;

so I have spares of these on-hand since they seldom fail, but do work when BT won't.

{A SMC reset should not cause a problem, or seldom has; but can solve some.}

In my opinion, the wired USB keyboard is an essential accessory, if not a necessary

primary means of user access on a continuous basis. At least until the wires fail...! 😝