My zero- and plus sign/questionmark-button not working. How do I know if its a software- or hardware issue
The zero- and plus sign/questionmark-buttons do not work. I cant tell how long it has been like this, because i'm helping with mothers computer.
Iv'e tried reseting PRAM and SMC several 2-3 times but it didn't help.
I've also updated to OS Catalina. But it also didn't help.
Whats the next thing to do
Regards
Simon
MacBook Air 13″, macOS 10.15