Some of the keys don't work on my MacBook Pro

UNICORNS1974 wrote:

some of the keys does not work

[Re-Titled by Moderator]

You do not specify which keys...(?)

for example: https://support.apple.com/guide/mac-help/control-the-pointer-using-mouse-keys-mh27469/mac

See if you qualify: https://support.apple.com/keyboard-service-program-for-mac-notebooks

The left shift key on my external keyboard does not work.