Error code 0x80070490 xbox one x stays on green xbox screen at startup

Microsoft haven't said it is. I believe the green Xbox One startup screen will stay, and the Xbox Series X/S will get the new Xbox boot up screen.

Hello LandwardArrow6,

Thank you for posting on the Xbox forums. We understand that your Xbox One X is getting stuck on the green screen on start up. We know that it can be frustrating when issues arise with the Xbox One, but we will be here to assist you with this issue
and provide a solution. This issue is caused by a system update failure. Is your console enrolled in the

Xbox Insider Program? We have a support article which provides solutions for a

console being stuck on the green screen. Go ahead and try some of the solutions in the article, and be sure to let us know the results!

Read this link: https://answers.microsoft.com/en-us...-startup/49aa2946-7e10-49fe-a34b-222679e99f31

I found a link to a similar forums post with a few solution you may want to try. https://answers.microsoft.com/en-us...-startup/49aa2946-7e10-49fe-a34b-222679e99f31

Hey Horse Feather!

The
System Update Troubleshooter has steps that can help - from the first page, select "I need to troubleshoot a system update error", then select which Xbox One model you're using (original, S, or X), and then select the "I am experiencing a startup issue"
option.

Give that a shot, and let us know if you see any improvement!

The scenarios described are stuck on green Xbox startup animation, or no green startup animation where my issue is green startup animation transitioning to black screen.