I have some great news, and some not so great news...
I won an Origin 300 off of eBay. It was supposedly going to be a Dual 600MHz with 1GB RAM. What I got in the box was an O300, Dual 600MHz, with 4GB RAM! It was a very, very, VERY nice surprise.
However, when I tried to swap in my new quad-500 board courtesy of Adrenaline, I ran into a problem with "UNKNOWN BRICK TYPE". I tried forcing it to be a C-brick, but the changes aren't persistent in the NVRAM, and I don't think it's even saving to the EEPROM.
Thinking I could solve my problem with an IO8 firmware update, I brought the 1.18 L1 up to 1.44.0.
Now I'm stuck with "UNKNOWN BRICK TYPE" and a missing System Serial Number.
I heard a trick where you can attach an L2 and it would pull the serial from the L2, but I don't have one, and I'm not sure where to get this Linux L2 emulator I've heard so much about.
What can I do?