AresRising, it looks like you did all the necessary homework to make sure your stepson's phone would be in working order and I regret it's not going so well. Has the SIM card already been activated on his line? Please complete an alternate factory reset http://bit.ly/11sU4Sn. If still having issues, and the SIM card was already changed to his line, we may need to review replacement options.
Let me know if those steps worked.
Follow us on Twitter @VZWSupport
Thank you for the response, albeit a little late. I actually contacted VZW customer support, who then contacted Pantech support, and they just exchanged the phone for me; none of the local resets worked, and the CSR attempted a reset from his end that wasn't successful either.
I likely didn't fully complete the setup wizard before I did the second wipe, which may have corrupted the APK, but I don't know for sure. Regardless, VZW got the replacement out to me overnight, and the new one works like a champ.
(Oh, and I apologize for the rooting comments; didn't realize they were against the TOS)