2013 Sierra iMac keyboards not working
Overnight my iMac Bluetooth keyboard has started to not recognise certain keys (delete, shift, space, caps lock) and is also delivering different letters than those selected on the keyboard (g for a) I have tried 2 keyboards and both have similar but not identical issues (eg one recognises ‘a’ but not delete, shift etc)
any advice would be greatly appreciated
thanks
iMac 21.5″, macOS 10.12