SunBlade 100 keyboard issues

I have a Sunblade 100, got it on ebay for $103.00, landed on my doorstep. I hacked the nvram chip with a pair of AA batteries, which should keep the thing going for a hundred years. I really wanted a STOP key, and found an ad on Ebay for new Type 7 usb keyboard/mouse, bought the set. I used a plain jane USB keyboard to install OPENBSD and that works just fine. The type 7 keyboard works great on a pea sea, and, if the Sun is booted, running an operating system, it works fine there too. If the type 7 keyboard is plugged in at any time prior to booting from media, any time the OpenBoot prom is in charge, the prom reports no keyboard detected and defaults to a serial console. This happens even if the type 7 keyboard is plugged in ALONG WITH the generic USB keyboard I am using successfully with the machine right now. An advertisement for the type 7 keyboard gave me a clue that this is a known problem with some early SunBlade machines and that I would need a Firmware upgrade. I've looked on Oraclle's site for Sunblade 100 firmware upgrades and not found them. Can someone link me to the latest firmware for the SunBlade 100 so I can get it to recognize this keyboard? At present I've got OpenBSD 6.7 running with X and a light window manager. Got Dillo running as well, so I can surf. Woot woot! I miss my SParcstation 4/330 though. Thanks! Jeff The OpenBoot Prom utility however, does not see this keyboard at all. I