I purchased a KONTROL S61, I'm trying to install the midi keyboard with my mac.
The Kontrol MK5 Update is giving a error message.
Help
Try checking : Kontrol S-Series MK3: Troubleshooting Firmware Update Issues
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If you have one, just try connect via a USB hub and see if that works, usually does.
Also, try different ports on the Mac. I have a M4 Mini Pro and the keyboard didn't initially boot up correctly on the rear Thunderbolt ports. On the front USB ports it was fine.