[jkiefer]

Here's what helped me. This drove me crazy until I figured out what I needed to do. It seems that sometimes the new ROM or Radio or something causes security settings to change. Go to EPST, edit, and check under the security settings. For Alltel, the 2nd line down, HDR AN AUTH Password, should read your hex esn, NOT "alltel". Change it to your 8 digit hex esn, reboot, and, at least for me, it made all the difference.