iMac Option Key no longer works

Try the following:

1 - Reset NVRAM or PRAM on your Mac - Apple Support

2 - How to reset the SMC of your Mac - Apple Support

3 - Boot into Safe Mode according to How to use safe mode on your Mac and test to see if the problem persists. Reboot normally and test again.

Get expert service and support at the Genius Bar.

▷ Call 1-800-MY-APPLE or get help here. 