I think I might be screwed
I recently purchased a Thunderbolt from a guy and activated it with a new sim card at the Verizon store. It was rooted, so I loaded Liquid Thundersense 1.5, which worked very well. I just couldn't let well enough alone, so I thought I'd try Thunderbread 2.6, which also worked well. Then came the radio upgrade 2.0. After I flashed the radio upgrade, my phone lost all radio signal, sim card id is unknown, meid is unavailable phone number unavailable....etc. I tried to restore to a previous backup to no avail. I even went to the Verizon store to get a new sim card. Am I screwed?