I had Rogers cable come over to install a 4k Cable NextBox and because my Pioneer does not support 4K they unplugged the old cable box and my android media box from the receiver. I then had to plug and Optical cable from my tv to the receiver in order to get surround from the new 4K. However now my Android box which is directly plugged into the received has no signal. The HDMI light is flashing on the receiver but that's it. I went back into the setup to discover the HDMi Input setting for HDMI 1 through 3 are all dashes and I cannot scroll down to change it.