To disconnect an iOS MDM device from the iOS MDM Server:
The folder workspace displays a list of managed mobile devices.
The iOS MDM device will be marked in the list for removal. The mobile device will be automatically removed from the list of managed devices after it is removed from the iOS MDM Server database. The mobile device will be removed from the iOS MDM Server database within one minute.
After the iOS MDM device is disconnected from management, all installed configuration profiles, the iOS MDM profile, and applications for which the Remove together with iOS MDM profile option has been enabled, will be removed from the mobile device.