I downloaded and installed the Headwind MDM Community Edition. It works really great but I have a problem with the update of the application.
After I installed the app as device administrator, using the QRCode, I made some customization on the Android code and then I tried to upload the new apk version on the MDM.
The device then tries to download and install the new version, but the installation fails. I can't find any way to stop the app and disable the device administration.