[chirp_users] UV-82 bricked?

I have a Baofeng UV-82 that was programmed, I downloaded the codeplug, added a frequency then uploaded the new codeplug to the radio. When I went to turn the radio back on, there was only a faint display visible on the top line. It looks like a series of black rectangles. Doesn't go beyond that, no channel, no frequency, none of the keys respond. I tried taking the battery out and turning it back on... no help. Tried downloading front the radio... nothing. Is the radio bricked or is there something else that I can try ? tnx Mike VE7SML