4K doesn't work with epson5040ub projector - firmware update needed from xbox

Finally, I took my Xbox one s to my friend's house and connected it to a 4K OLED TV. And I can see the 4K and HDR signals working fine. I used the same HDMI cable that was connected to the 4K projector. But when connected back to the projector and selected
the option Allow 4K I see the message the TV doesn't support 4K. But Allow HDR is fine on the Projector. I don't know where the issue is. The projector seems to work fine with Apple TV 4K, Firestick 4K and nVidia Shield TV with 4K HDR signals. The issue seems
to be with the Xbox the way its detecting the signal on the TV.

Hey all,

From the research I've been looking at, these projectors don't appear to be using Native 4k over HDCP 2.2 and HDMI 2.0a It looks like the projector will accept a 4k Signal, but then downscale it to 1080p. This looks like the reason for it not working properly
for you on the Epson 5040ub, EH-TW7300 and 6040ub.

We'd recommend reaching out to Epson for further clarification on if the Projector displays in True 4K while using HDR.

If it doesn't, than this would be the reason that 4K Blu-ray UHD discs are not playing at a 4K resolution and only at 1080p.

I'm having similar problems with a Pioneer Elite SC LX501. Should support 4K upscaling and pass through. I have all video upscaling turned off and passing through to an Epson 4040 4K projector. When I remove the receiver from the equation, it is 4K brilliance.
Plug into the receiver and the screen is blank. I"m arguing with Pioneer support about the length of my (brand new, high speed for 4K) cable just professionally installed.

Either the XB1X needs to modify how it recognizes the HDMI handshake - or specify exactly what needs to be supported - or - Pioneer Elite needs to update it's pass through capabilities. Firmware was updated today, no luck.

Really hacked on this. My media room setup is awesome and this was going to be the crowning jewel but it won't send a signal through my receiver to the Epson projector. If anybody has done this successfully I am dying to know how!

The original Xbox One cannot produce 4k images. Only the Xbox One S can (sampling) and the Xbox One X (true 4k).

That's right!

And remember: S and X consoles doesn't need firmware updates to play 4K content.

I did. The only thing is that under the list of epson projectors that it wants you to choose from under the tv set up, it doesn’t list any 4k projectors. Only hd. And it’s been out for a year. I just don’t understand why 4k and hdr work with all of my
other devices with the same settings. Only the xbox won’t work.