Now, however, the Chevron WP7 team's Chris Walshie has delivered a handy little utility that will allow you to update any Windows Phone 7 device -- regardless of your carrier.
- Download and install the Windows Phone Support Tool (x86 or x64) and the ChevronWP7 Updater (x86 or x64)
- Launch ChevronWP7 Updater and select your language. If your language isn't listed, stop and do not update.
- If were running WP7 build 7004 (you can verify in Zune) then run the updater twice.