They're one time programmable and then you throw them away. There is no flashing firmware, nor is the BFD board set up for it. Since the BFD is being discontinued, this would be the last gasp......OTP EPROMS
Alright! I got my new eprom from Hobbyroms.com today. Gonna pry her open tonight and see iof I can get it working. Any tips on the process from anyone who's had success?