Hi Fred,
I hope you're doing well!
I finally got my new FTM-500 out.
I inserted a new 32 gb microSD card, turned the radio on, added my call sign at the initial screen, then I formatted the card.
I then did a backup of ALL settings to the microSD card.
I hadn't done any changes or added any memories or anything. Just stock from the factory.
After doing the backup there were a number of directories and files in the root of the microSD card. I'm not 100% sure which file is the backup image, but I think it is the CLNFTM500D.dat file that I've attached to this email.
Let me know if you'd like me to get you anything else.
I'm not sure if there's a firmware update available or not. Let me know if you'd like me to send you a backup after doing the firmware upgrade.
I'd love to get FTM-500 supported in Chirp. Let me know if I can help in any way.
Best,
Dave Boucha