[grace-baker Hexnode 28 January 2020 grace-baker Moderator]

Hey, Thanks for posting.

You will have to disenroll the device from the Hexnode portal to fully remove the configurations that were associated to the device from the portal.
To disenroll a device, please navigate to the Manage tab and select the desired device, click on the Actions button and choose the ‘Disenroll Device’ option.

Cheers!
Grace Baker
Hexnode MDM