cant downgrade from ZVD to ZVB or ZVC !!!!! HELP!!!!

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http://androidforums.com – need to get to zvb or zvc even zva. i downloaded stock zvb zip file. wiped data from CWM, wiped cache and wiped dalvik cache. also formeted system, cache and system. then flashed rom however whne ever i turn on phone and go into settings it still says ZVD stuff. how can i fix this and go back to zva,zvb or zvc. (General)