Can't get Korg Microkey2 37 working

I had read about the USB hub solution working for some butI dismissed it being a power issue because it's worked in the following environments:

• MacBook Air, El Capitan, USB 3.0
• Windows 10 box, USB 3.0

I've been waiting for Belkin's USB-C hub (which is likely ~$350 AUD!) so I can get my workstation set up properly but I guess I'll have to buy a USB 2 hub in the meantime as sadly I don't know anyone with one. The problem with that is it's still going to have to go through the USB adapter, but I guess it's another thing tested and ruled out.

My top suspect was Apple's USB-C to USB adapter is not working correctly but I don't know enough about how USB works. I thought perhaps it's not converting the data correctly or something, which is why the KB is being detected in AMS, LPX, GB and MIDI Monitor, but not registering any output from it on my 2016 MBP.

I was hoping it was just a setting in Logic that I wasn't aware of...hopefully someone has some experience with this and can shine some light on it.

Thanks for your help again, Pancenter.

Hi, Pancenter. No, still waiting on a reply from Korg and yes I've tried all USB ports.

No luck yet, no. I'm tearing my hair out here!

I tried the Korg on my partner's MacBook Air (older model) and it showed up in Audio MIDI Setup without needing any drivers. Interestingly, it also worked when I clicked Test Setup, which doesn't work when I do it on my MBP. My partner's MBA is on El Cap, so there's that.

I wonder if the USB-C adapter is creating issues? The confusing thing is LPX and GB are both detecting an input device when I plug it in, yet Audio MIDI Setup and MIDI Monitor aren't registering any activity when I test them.

Thanks for the reply. I uninstalled the Korg MIDI driver, removed the device from Audio MIDI Setup (which I'll call AMS to save typing it in future) and rescanned. It brought up two devices, the Korg and a generic MIDI device.

If I reset all MIDI drivers inside Logic Pro it removes the generic device from AMS and sets the number of MIDI devices inside LPX to 1, which seems correct. However, the LPX LED it's still not registering any in or out!

Today I bought a USB-C to USB 2.0 (B plug) to eliminate the adapter with a direct connection. It still didn't work. The last thing to try is USB hub. I just don't have the money to buy a hub purely for testing purposes though.

I was on the phone to an Apple Senior Advisor for a couple of hours last night trying to get this sorted. They got me to try booting into Safe Mode, creating a test profile and I also reinstalled MacOS. All to no avail.

I went into a local Authorised Apple Dealer and tested the keyboard on a few of their 2016 MBPs (note: none were 15" and I'm not sure what their specs were). AMS displayed the keyboard just like mine, however on several occasions it output a tone when Test Device was selected. However, it was intermittent and not at all consistent when it worked and when it didn't. The KB sometimes didn't power up at all when plugged in and other times the LED on the KB flashed on and off on occasion. The LED typically indicates it's receiving power. There seemed to rhyme or reason to the flashing, it also appeared to be random.

In the end, they were clueless as to what might be going on too, as the behaviour was so erratic and inconsistent across MBPs. I've had consistent behaviour on the MacBook Air and Win10, so I'm thinking this is perhaps a USB-C issue. Could the ports be supplying too much power and not regulating it, making the KB wig out? I'm totally clueless as to how that works.

Lastly, Korg got back to me and after reading this thread and everything I've tried they've forwarded it onto Korg Japan and I'm waiting to hear what they say.

After some time KORG have officially acknowledged the problem but have still done nothing to fix this (ie the problem lies with KORG, not Apple).

I still haven't been able to use my Microkey2. Horrible support from KORG.

The keyboard works flawlessly as a plug and play device on my Windows 10 desktop and Macbook Air. The problem is explicitly USB-C. It's super frustrating. At this rate I'm not sure they even care or will fix it.

I'll check out those other keyboards if nothing has changed in a month or so's time (I definitely won't be giving Korg another cent in my life). Thanks for the recommendations.