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I'm no expert, but does this help at all http://www.droidforums.net/forum/thunderbolt-hacks/203564-tool-root-2-11-605-9-no-data-wipe-downgrade.html ?
seems like u used the 2.2 sbf on the new update. check out this thread
bricked x because of 2.2 downgrade
...latest OTA the Thunderbolt.
...He couldn't fix it either...jesus, this is driving me mad!
...lost for Vortex users. Go here -> http://breakneckmod.co.cc/downgrade.html
This gives you the files you need to revert your Vortex back to 2.2...