How do I update birthday?

I can't sign up for rewards because of my birthday. I'm not sure why that's happening I'm over 30 years old.

:)

 

How do I uninstall an update?

The newest dashboard update is horrendous. Movement through the menus is counter intuitive, the screen looks cluttered and options are difficult to read thanks to the top of the screen being taken up with an oversized banner for my current game choice, really
HATE the new One button functionality... or rather dysfunctionality.

I want my old dashboard back and I want it NOW. I want to be able to hit my One button and go to my Main dashboard not a dozen excessive menus just to get to my main screen. I want to be able to read my dashboard and easily tell what I am or am not currently
selecting.

How do I uninstall this pos update?

 

How do i delete updates ?

Thank you so much ! I was trying to look everywhere and i kept being told about the cache.

 

Sorry but once a birthday has been set on an account it cannot be changed. However, if you are over 30 years old you can try posting in the Rewards Forums for more assistance.

forums.xbox.com/.../default.aspx