I'm looking for someone on The Netherlands who's willing to upgrade my Carnivore 2 to the latest firmware 2.50? I live in Breda, but I don't mind driving around a bit.
I'll happily pay you for it, or bring you some local beers... or feel free to make your own suggestion. 
Looking for someone to flash my Carnivore 2
Oh, I could've tried this for you, from Hilversum! But honestly, if you have an interface on the way already it is super simple once you've done it at least one time. Just remember to read and follow the instructions! 
One thing I can share is that, especially with those cheaper USB blaster clones I've had more consistent success connecting under Linux than Windows. This was before the actual flashing, so there was little risk (just a lot of troubleshooting and annoyance 
). So if you run into a situation where the device just won't connect, even after driver installation on Windows, try Linux if you have that available.
Well, everything to do the flashing arrived last week:
This included 2 FDD cables for my NMS_8250.
But the whole kit came from Amazon:
USB Blaster -> 7,99 Euro
Pin Headers -> 3,35 Euro
5VDC USB Cable -> 6,99 Euro
After installing the required software I was good to go, but I kept running into a problem: The blank-check kept failing. No idea why, but Google tells me this might have something to do with the Altera chip not being 100% (!?!?)
Anyway, since the chip was emptied already and the C2 didn't work anymore, I dedided to skip the blank-checking and to program it without. This seemed to go OK, but ended with a verification error. But still, the C2 now seems to work OK with the new firmware:
And I now have a working 2nd PSG for example:
I did some more testing with various game and stuff and haven't run into any big issues. But I guess the Altera chip on my C2 isn't 100%, although it doesn't seem to break it's functionality.
