From Chris Walsh:

Disclaimer, use this at your own risk, if this voids your warranty I’m not being held responsible, blah blah all that junk.

Well, first, thanks go out for Microsoft for releasing a support tool for Windows Phone yesterday.  Inside that tool, were unreal hidden gems.

Basically they’ve created a managed wrapper over the whole update process for us, rather nice of them.

[...]

All you need to do is run the ChevronWP7.Updater.exe console app and follow the prompts.

I was able to pull down the pre-Update and NoDo for my Samsung Focus just moments ago. Go screw yourselves, AT&T.

http://blog.walshie.me/2011/04/04/so-who-wants-windows-phone-updates-like-right-now/