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Hercules DJControl Inpulse 500 – Only Deck LEDs light up, buttons non-functional, MIDI test greyed out

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Hi everyone,

I recently bought a used Hercules DJControl Inpulse 500, and I'm running into a strange issue that I hope someone here can help me troubleshoot.

When I plug the controller into my PC, the behavior is abnormal:

  • Only the Deck 1 and 2 LEDs, the underglow lighting, and the Beatmatch guide stay permanently lit.

  • The controller is recognized in DJUCED, and the Jogwheels actually work, but none of the buttons respond at all.

  • When I run a manual LED test on the hardware, only the deck LEDs light up.

  • The MIDI test in the control panel/utilities is greyed out and cannot be started.

What I've tried so far:

  • Reinstalled and updated DJUCED and the official drivers to the latest version.

  • Tested multiple different USB ports and cables.

It almost feels like the controller is stuck in a bootloader/update mode or has a deeper firmware/hardware glitch.

Has anyone experienced this before or know how to force a firmware reset/recovery on the Inpulse 500? Any advice would be greatly appreciated!

Thanks in advance,