My CEC doesn't work on my xbox series x. It works with my other xbox series x and PS5 but...

Thank you for trusting Microsoft community, this is Aman.

I understand how frustrating it must be when your Xbox media remote works perfectly with your new Xbox Series X and PS5, but not with your older Series X—even after trying all the right troubleshooting steps. You've done a great job narrowing down the issue, and it definitely sounds like the problem is isolated to the older console.

Since you've already:

• Verified the remote works on other devices
  
• Swapped HDMI cables and ports
  
• Restarted the console and toggled CEC settings
  
• Tried new batteries and removed accounts
  

It’s likely that the issue is related to either a firmware-level glitch or a hardware-specific CEC communication fault on the older Xbox Series X.

Before considering a factory reset, I’d like to ask a couple of quick follow-up questions to help pinpoint the issue further:

• What is the current OS version on the older Xbox Series X?
  You can check this under Settings > System > Console info > OS version.
  
• Is the older Xbox connected to the same HDMI port and TV input as the new one was?
  Some TVs cache CEC behavior per port, and switching ports can sometimes help.
  
• Does the Xbox respond to any other CEC commands (like turning on/off the TV)?
  Or is it just the volume control that’s not working?
  
• Have you tried unplugging the Newer Xbox series X before trying to plug in the older one.
  
  If you haven't, please try it and let me know if that solves the issue.
  

Once I have this info, I’ll be able to suggest the most targeted next step—hopefully without needing a full reset. Looking forward to your reply!

Thank you for your answer, but I think you did not understand my question. To sum up: 4k doesn't matter.

The problem is that hdr blu-rays work fine on ps5 (good colors).

So the HDR to SDR conversion is correct. But on xbox series x, in comparison with ps5, the picture is too dark.

So the HDR to SDR conversion on the xbox series x is bugged. I don't think it's a washout color issue.

Why is Xbox such a poor running console? I purchased my son a new ps5 and me the xbox x, son has zero issues with ps5. After 2 days i am ready to sale the series x and go to ps5! WZ nor BF2042 work online! This is a terrible product!

My controller stop working too series x , factory controller . Last night working and today my samsung tv remote control my xbox and the xbox controller no longuer view by the xbox , i use another controller from my other xbox seris s , and this controller work but not the one work last night , i try the little button to match xbox with but nothing , the controller do no longuer view on my xbox series x , can control de series s but can't be view or connect to the series x anymore

yeah and the problem is that Amazon and others are saying "Works on Xbox Series S/X"

and on the box of the headset its PC, PS4 & PS5..