HDMI Input channel gone from one guide

I fixed it by going into settings>TV & OneGuide>OneGuide. Under "Advanced" select "Clear OneGuide".

Try different inputs for the HDMI. The HDMI cable is a different input channel (eg. input channel 1-6 - my input for HDMI (and I have 7 of them) is input 6 whereas the input for the regular cable is input 2).

Also, with HDMI the xbox will not start up until it is on the proper channel.

If you are looking for the HDMI input from the Xbox it is now called One Guide and the icon has 3 broken horizontal lines.

Not sure I explained it clearly enough. My TV has 3 HDMI inputs, all of which can be configured for PC, Game Mode, TV etc etc. The Game Mode makes the XBOX input fill the screen and overall looks better than say in TV mode. So if the input from the XBOX
One is set to Game Mode, then I switched the XBOX One to throughput the TV signal, then I would be watching the preset HDMI in Game Mode even though I was watching a TV/Tivo channel, if that makes sense.

.

So to recap

.

My TV has one HDMI port set to TV input and another one set to Game Mode input, and I simply change the input depending on wether it is a game I want to play or a TV channel to watch.

.

But if one HDMI input is being used by both XBOX One and a TV signal input, then the TV's HDMI port setting will only default to the one I set it to in the first place

.

So it is the TV that determines what display I will get regardless of what signal the XBOX One sends.

.

If that doesn't confuse you then nothing will, already getting a headache just re-reading it

The firestick should work. From some research I’ve done they say

“You have to go into one guide and it should be at the very bottom on the HDMI channel.”

“I did manage to get it to work and it’s basically just as this person said, plug it into the HDMI on your Xbox, press the power button on your fire stick then open one drive (probably a one guide typo)
on the Xbox and it should all be working!”

“You need to run the TV set up. It'll ask if you have a cable box or something, and set up the one guide (TV guide) then after it should work. I switch between fire stick, Chromecast, and switch on my input.”

I don’t have one to try but I hope this helps.