iPad supervised but not managed : error installing mdm profile manually

New Contributor


An iPad (iOs 11) appears supervised but not managed in JSS.

On this device, i go to the "enroll" url and install the certificate, then the mdm profile.

At this point, a pop-up says : "a profile with a MDM entity must be deleted if needed"

The original message is in french :: "un profil comportant une entité mdm doit pouvoir être supprimé"

I cannot enroll this device manually, and wiping it doesn't work either :

in fact, the device attempts to connect the mdm server for 10 seconds, then pass over without any error message, to the next step (choose a code, etc.)

Any idea ? Thank you very much.