The instructions above say to create the hotspot on your phone then connect the BT-300 to your phone's hotspot.I think you have to create the hotspot with your BT-300 Android controller/touchpad. Then turn ON the WiFi on your Samsung Galaxy S8 and connect to the BT-300 hotspot. After doing this, you run ApowerMirror on both devices. Hit the circle to mirror your S8 and you will see a device called Apowersoft EMBT4 (this may be different in your case) but you basically connect to it. Once you do, you should be mirroring in your BT-300 glasses. Hope this helps!
I am succeeding in creating the connection but the cast image on the BT-300 just consists of broken and odd interlaced lines. Also the S8 almost grinds to a halt while connected