I have not updated my Pro-96 via the cable/computer. In fact, I just purchased the cable @ radio shack with the adapta-plug. When Delaware rebanded in July; I just entered the new frequencies and its running just fine! I've had this scanner since they first came out and its ony been turned off a few times to hit the reset when changing over batteries. It's a Die Hard.....Lol
As far as the Linkage to the Computer, I may not be able to help since I've never ever had to us that route to program frequencies. When I bought the cable/accessories a few weeks ago, I thought about updating the firmware but I'm alittle hesitate since its been such an excellent performer> Plus I just purchased this BCD536 that I've been playing with.......