Wired Apple Keyboard A1234 - numpad keys (1,4,7) no longer working
I have a wired Apple keyboard (Model A1234) and discovered this week that three keys on the numpad (1, 4, 7) no longer work. Every other key works, but these three in a line on the number pad do not.
I am not sure when this problem began, but I believe it is recent as of the past week or so. I am using a 2018 iMac and have tried rebooting and plugging the keyboard into different USB ports. My MacOS version is 10.15.1.
Is there a solution for this? A software patch or something I should try with the keyboard hardware itself? Specs from System Report below:
Apple Keyboard:
Product ID: 0x0220
Vendor ID: 0x05ac (Apple Inc.)
Version: 0.71
Speed: Up to 1.5 Mb/s
Manufacturer: Apple, Inc
Location ID: 0x14420000 / 12
Current Available (mA): 500
Current Required (mA): 20
Extra Operating Current (mA): 0
iMac 27", macOS 10.15