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wilfriedw Author

Level 1

0 points

usb keyboard not working

usb keyboard not working after update.

Posted on Apr 15, 2022 8:13 PM

Top-ranking reply

leroydouglas

Community+ 2024

Level 10

188,742 points

Posted on Apr 16, 2022 8:51 AM

wilfriedw wrote:

usb keyboard not working after update.

Try a different port

try a differnt cable

try a different adapter

try a different keyboard and compare your resultss...

M1—try SafeBoot How to use safe mode on your Mac - Apple Support

Takes a bit longer to get to the login screen, does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.

Intel—Try resetting NVRAM/PRAM Reset NVRAM or PRAM on your Mac - Apple Support

(get at least two-three rounds of the chimes when holding the NRAM Reset)

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