Heskey.
The original Xbox with live isn't support anymore, so no.
No
You go to the website and look at the bottom of the page for the number.
Call xbox support for help
They have to support xbox live, this will be indicated on the back of the CD case.
No, there is no cross-platform support on the Xbox One or Xbox 360 (same with Playstation 3 and 4).
U have to contact xbox live support
Try this and see if it helps goodluck http://www.xbox.com/en-US/support/connecttolive/xbox/default.htm
Uh nothing they have the same support the only thing that is different is the console.
You can contact Xbox support team, and they'll be able to reach you to the appropriate people about this.
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As long as you have an XBox LIVE connection, the dashboard update should start automatically when you turn your 360. If not, you might not have XBox LIVE, or just aren't connected to it. If you are, though, try to get support.