As I have mentioned in another thread and the post above:

After you update to 1.47.651.1, some may be tempted to check for the update again. Your Evo will state:

"There is an update available, do you want to update?"

Do NOT update again.

There have been many reports that re-applying the update will brick your phone. Simply check your update and confirm that it is as stated above.

Do NOT re-update!

Hopefully, Sprint will get the word out on this issue. There have been many, many reports of phones bricking as a result of this reinstall. This problem will only contribute to the shortage of Evos as current owners replace the ones that bricked.