“No Input Detected” is displayed on the projector.

There are various reasons why “No input detected” is showing on the projector.
(1) Projector and device are not connected properly.
(2) The device output video signal is incompatible with the projector.
(3) The device doesn’t support video mirroring.
(4) Cable wires used are not functioning correctly, and
(5) Input selection in the projector is incorrect.
You can troubleshoot the causes above.