I've just got myself an RS-97, and installed the V15 firmware from https://jutleys.wixsite.com/retrogamers97-90
. Before I did this, I was careful to copy the roms off the old SD card so I could put them back once I'd got the new firmware up and running. So far so good, the new firmware is awesome, and runs SNES and Megadrive stuff much better than the stock firmware. Big tick.
What's not so good is the Neogeo games from the stock firmware now don't work at all, not in Final Burn Alpha, nor Final Burn Alpha GCW0 (??) , nor gngeo. I did some googling, but I can only assume that I'm not googling the right terms somehow, because nothing I've found seems to relate to my situation. I have a bunch of .fba files, from the original rs-97 firmware, that worked perfectly with that firmware, and now aren't even recognised by the available emulators. I'm hoping someone can point me in the right direction and let me know what, if anything, I can do to these to make them playable. From what I've read, it seems I might possibly need a neogeo.zip file (which I managed to get, but which didn't seem to help), and I might possibly need specific versions of roms, in zip files, rather than this lot of .fbas I've got now. I also found some roms that were in .mvs files. I have no idea what they are or what they're for, but they were claiming to be neogeo roms. Neither .fbas nor .mvs files were recognised by any of the emulators on the rs-97.
If there's a doc somewhere I can read about this stuff, that would be great. Everything I've found seems to assume you already somehow know what you're doing.
Sorry to ask what must be complete newbie questions, but I've searched for 3 days now, and got nowhere. Any help would be appreciated.