I am just getting started and am calling BS on “oh that’s a bad card” that seems to be the answer to everything. I have new flipper out of the box, and after five cards- all new, brand name, and all work in camera, drone, and android tablet (8 GB, 32 GB, and 64 GB), Flipper mounts and sees each. Flipper formats each. From Mobile app, Android and iOS, it’s reported that card isn’t there even though Flipper itself sees them after attempting firmware upgrade. Then it reports full or broken internal memory… so factory reset and start over. And over, and over.
It ain’t the SD cards, kids.
Will continue with all of the various “recovery” docs trying to get this thing to work but I have decades of experience following directions and writing files etc. There is something problematic here beyond SD cards.