2 options:
1) take into VZW store, ask for tech assistance--see if they can diagnose it. they might bring up a service menu that is accessible only through dialerpad combo (similar to the #4636# combo that brings up PHONE INFO) and might be able to reset some software that will fix your problem. this would be similar to the service menus accessible on the HTC Evo which allowed for sensor calibration, touchscreen calibration & sound tests). the menu's there, the public just doesn't know the dialer combo for the Thunderbolt.
2) and/or call Asurion to file an insurance claim. just read your insurance fine print first! read your warranty information first! don't have it? ask for one at the VZW store--they might direct you to Asurion website.
excerpt from VZW website:
"Asurion Wireless Phone Protection Asurion, a third-party licensed insurance agency, offers insurance coverage for your wireless device and certain standard accessories. If you have Wireless Phone Protection and your device is lost, stolen or accidentally damaged (including liquid and physical damage), you may file your claim with the Asurion within 60 days of the incident and the device will be replaced upon claim approval. To make an insurance claim online or to obtain Asurion’s Wireless Phone Protection Brochure (including all terms and conditions), please visit Asurion's website or call Asurion at (888) 881-2622. Asurion Wireless Phone protection is part of Total Equipment Coverage and is also sold separately."
source
Insurance deductible=$99 for smartphones thru Asurion (vzw insurance contracted company)
just fyi
ncG1vNJzZmien6fCrr%2BNmqWdqp%2BesaSxza2pmqRemLyue9OhqZ6ZlKh8pb7OqaeenF2ltbC6xGaqnKqVmrtusMidpa1lk6eupLeMoZylqF5mfnmFlHBm