1. Use it all the time to turn off the school projector all buttons work if the remote on the screen match the original remote.
2. Plz look into this problem and upgrade it.Didn't work despite downloading more content???works well on projector.
3. It's a small black dot on the top of the phoneWorked right off the bat, background is a little annoying, but it works well.Not supported in samsung devices.
4. You also need a IR (Infrared ) blaster on your phone for this to work.