1-9 numbers don't work

[jkxxx]

/ WORKS ONLY SOMETIMES 🤯 /

The solutions for my case:
#1

1. Hold the key longer, more than 10 seconds, be patient.

#2

1. Open and enable Accessibility > Keyboard > Accessibility keyboard
2. Select any input area as Browser Address bar or Form
3. Click whole 1-9 Number part through Accessibility keyboard + your Mouse/TouchPad (Do not use keyboard) and also write into the bar/form all the "special characters" as @#$...
4. Then try Keyboard keys
5. Disable and Close the Accessibility keyboard
6. 🎉

 

[OldM8Greg]

had the same issues with a customers macbook today, checked software nothing in software fixed, i swapped touchpad cable, issue persisted, eventually swapped keyboard assembly and everything was working as normal

 

[KennyJr]

Tap on the option key 5 times to switch from key controlled cursor to number pad - and vice versa.