I've got the same panel with the same error, maybe this is a common failure for these and that's why they are hard to find.
I repair electronics for a living so I think I know what's wrong. There is a small memory IC right beside the CPU that I think is corrupted. I removed mine, copied it's contents to a brand new IC and soldered it onto the board but got the same fault. I think if I could get a hold of a working unit and read the memory IC on it I could write it to mine and yours and get them working again.
You mentioned that you had seen Prosine 2.0s for sale, if you can send me links I'll buy one of them and try my theory out, if it works on mine I can fix yours as well.
Jeff
Thanks Jeff. I will keep an eye out for one. I often see them listed in boating sections.
Eric
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2006 Ford E-350 V10 Agile 4x4 SMB EB50
2000 Ford E-350 7.3L Quigley 4x4 hard top with custom interior by Xtreme Fab - Sold
Just to add to this. What I need to copy doesn't destroy or alter the panel at all. I don't need to solder to it or remove anything, I just need to clip onto an IC and read it. So... if anyone has a panel I could borrow for a day that would work too.