Help... dead keys, wonky faders, unit freaking out

I’m having all sorts of issues with my 1 year old Keylab61 mkii.

The two worst things right now…

  1. Dead keys. I have dead spots in the keyboard every eight half-steps. So all of the D, B flat, and A flat keys are dead.
  2. In DAW mode, if I touch the knob on channel 7, the unit FREAKS OUT and starts flashing wildly, and dumping commands to the DAW, and causing the DAW to make al sorts of horrible noises.

That’s just for starters. In DAW mode, the channel 3 fader, button, and pan knob do not work. The channel 5 fader starts the transport play function when placed at the bottom.

My current system is old I will grant you, and I really don’t want to buy a new Mac but it’s Apple so I’ll have to eventually. They didn’t become the richest company on Earth by making products that you didn’t have to constantly replace.

I’ve sent an email to Arturia tech support but it’s been three days and no answer.

Anybody have any ideas? Thanks!

My system -
Logic Pro X 10.5.1
MacOS Catalina 10.15.7
IMac 2013

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Not sure if it’s the same problem, but I have similar issues from time to time when I power mine over USB. The issues disappear when I plug in a power cable.

@karnubawax Sorry to hear you’re having these issues, have you tried contacting Arturia Support directly? You can do so here https://www.arturia.com/support/askforhelp/issues

@StijnNotStain Have you tried a different USB cable and using a different USB socket on your computer?
Also worth checking, very carefully, if there is any dirt or lint in your USB cable and ports.

Yes, I tried different cables and checked the sockets. I’m pretty sure it’s due to the limited current my USB power source (Roland Fantom) is able to provide.

Have you tried a different USB port on a different device or an external PSU?
Sounds like you may have answered your own question.

I’m sure you’ve done this, but is the controller plugged directly into the computer and not through a hub? I had problems in that regard, even with a powered hub.

FWIW, get the best quality USB-B cable you can afford. It really does make a difference!

The power supply cable is always a good idea anyway, USB power isn’t the most reliable.

I had a similar problem:

  • some keys not working
  • scratchy noises from the master fader
    Two years ago this had happened too. I then somehow resolved the problem,
    but today could not remember how.
    As this occured only in Ableton Live and not while using the standalones
    (Mini V3, Stage-73, … ) I guessed:
    “Maybe it has to do with my switch from Ableton Standard to Ableton Suite.”
    I compared the settings of the old and new Ableton installation, and “Voila!”

    These settings work for me.
    Don’t know, why Arturia or Ableton put the Keylab MkII twice in the devices
    or why there is a Port 2?
    But it is important to choose Keylab MkII 61 (Port 2) in the Input and Output!
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