It only needs to be worth $1. VZW guy was no help. He said to bring in the phone. I would have to unroot and install stock rom. I don't want to go through the trouble if I can't get the $200 toward Pixel or V20 (I forger which one had the offer).They would only give $20 for my Droid Maxx, so I just kept it. I doubt they give more than $10 for a Thunderbolt as it's a much older phone.
For V20 or Pixel? I was hoping there was a data base available to tell me if Thunderbolt is worth a dollar. I know og droid is not and Tbolt is only a year newer.I bought a $20 Trac phone and turned it in for the $200 promotion. So yes, if it's worth at least a $1 you'll receive $200. Rooting and any other nonsense doesn't matter