I had the same problems with my blizzppc@175 some years ago but after tickling with it like clean and replace with smaller simms,edge conector I managed to start my amiga with the blizzardppc *BUT* without the bvision connected and pressing the key 2 to dissable the blizzard when the computer started.
When I started my amiga without pressing the key 2 I had the similar problem (RED screen powerled flashing).
after cleaning connectors and get your BV off try to start your amiga with key 2 pressed and simultanaously pressing both mouse buttons to get you to the early startup menu.
If you manage that, then you will be able to flash the card again with the /switch FORCE.
But beware it will take ages for the flash to complete with 020 and problematic flash, but finaly you will have a properly working blizzard again!!
I found that without proper extra cooling to the flash chip it gets corrupted often.
If you cann't solve it the best is amiga france but beware it will cost.
If I can help you more ( I'm burned by these hardwares and have MUCH experiece) PM me .
