Just another quick follow-up. This daggone projector is a mother effing lemon
I understand it has a issue that I experienced once or twice. When I first got the 420. I have not experienced the black screen and non-responsive power off for many months now. I tried updating the firmware, and I bought everything from Amazon, but for some reason there was always an error and I could not update the firmware.
I have experienced another issue and I experienced it a lot. If I power on my system and let's say I have my AVR connect the Xbox One S to the projector. That's fine and I could use my Xbox One S perfectly well. When I switch inputs on my AVR and then connect my home theater PC to the projector, my Denon X3100 sent the signal to the projector and I would get a black screen. Switching inputs back to the Xbox One S and I could see the Xbox One S image. I definitely waited long enough for the projected to sink the HDMI signal.
The same scenario above happens with my new AVR which is an Onkyo rz920. But the only difference is the JVC displays a blue screen instead of a black screen.
And if I turn my PC on first, and then later on try to switch the Xbox one s, I get a black screen when trying to see the Xbox One S picture.
The issue happens almost all the time when I try to switch inputs. Ordinarily it's not an issue because when I go power up my system it's either just to watch movies or play Xbox... and not to both.
I have the original firmware. Does the problem I explained above become fixed if I update to the latest firmware?
I know I can update the firmware and see if it fixes the problem. But as I've mentioned before, I could not update the firmware using the recommended equipment and my laptop. Perhaps if I had a PC with an a real serial output I would not have an issue.