[mharvey]

The procedure that I saw (in the Sprint manual) is different. I have performed a hard reset this way and it works.

It says:

To perform a hard reset:
1. With the device turned off, press and hold the Volume Down and Enter keys first, and then press and hold the Power key until you see the following message on the screen:

This operation will delete
all your personal data,
and reset all settings
to manufacturer default.
Press VolUp to restore
manufacturer default, or
press other keys to cancel.

2. Release the Volume Down, Enter, and Power keys, and then press the Volume Up key to perform the hard reset, or press any other button to cancel the reset.