I following this link to enable developer mode on xbox. https://learn.microsoft.com/en-us/windows/uwp/xbox-apps/devkit-activation
Everything is fine except that after activating xbox with code, It is showing this message
If anybody can assist how to fix this? It's been two days and still showing this message. Thanks!
Update
The newest app called 'Xbox Dev Mode', with Xbox Series S and X logo, which can work as before. But their docs haven't changed yet.
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This may be a production bug of MS. But you can enable dev mode with some hidden skills.
Settings > System > Console Info > Press LB RB LT RT quickly > Developer Settings > Developer Mode.
Check it, your console will restart to dev mode.
Thanks.