Welcome to Headwind MDM Q&A, where you can ask questions and receive answers from other members of the community.
Please do not post bug reports, missing feature requests, or demo inquiries. If you have such an inquiry, submit a contact form.
QR code based enrollment is available on Android 7 and above. On Android 4-6 (and MIUI), you can install Headwind MDM launcher as an APK file (open https://h-mdm.com, click Download, find the "Android application" section).
Before installation, you must permit installation from unknown sources. After installation, provide all permissions asked by the launcher.
Here's a video related to the installation without QR code based enrollment on Xiaomi: https://www.youtube.com/watch?v=hAqop4YKUdk