Here is a guide for you to sideload Android Package (APK) from the internet on your XGIMI projector.
Change the APK suffix to Apk.1 on your computer. For example, change youtube.apk into youtube.apk.1.
P.S.: the suffix limitation will be removed soon, and you will no longer have to change the suffix.
Copy the APK to the root directory of the U-disk.
Plug the USB into your projector. Click “File Manager” – “Removable Storage” – “APK “; then short press ok – choose “Others” – open with “package installer” – “install”.