Re-flash Instructions
If you need to recover the device back to factory default (you will lose all settings, presets and cues) then you can re-flash the boot image.
You will need a USB A-to-A cable to connect it to a computer. The device isn’t delivered with one, but you can buy one from Amazon: https://www.amazon.com/dp/B002KKXP3M
Then you need to install RPIBOOT, a tool to put the unit in fixed disk mode. Installers for Windows and instructions for Mac/Linux are available here: https://github.com/raspberrypi/usbboot
Once you have that, you need this tool to write the image: https://etcher.balena.io/
And this is where you download the image: https://dmxcorefiles.blob.core.windows.net/files/flash-images/balena-cloud-Unprovisioned-dmxcore100-4.0.16-v14.12.2.img.xz
When you have everything installed, disconnect the DMX Core 100 from network and power and plug it into your computer via the USB A-A cable. You should see that it gets power. Then execute the RPIBOOT command line tool — it should complete in a few seconds and after that a new disk drive should appear.
If you want to preserve the identity of the previous device, copy the config.json file from that disk drive and overwrite it after flashing the restore image (this is optional).
Run BalenaEtcher and write the downloaded image onto the drive. It will take a few minutes.
The disk drive is automatically disconnected when BalenaEtcher finishes. Re-run RPIBOOT and unplug/replug the USB cable if you want to copy back the config.json file (again, optional).
Connect the DMX Core 100 back to an internet-connected network with DHCP. If you didn’t copy the config.json file, you’ll need to contact support to re-provision the device.