I’m so frustrated with this. It fails to recognize the card until several attempts have been made of popping it in and out before it will recognize the SD card and format it but as soon as I close the cover it loses it and I have to start over. I’ve tried 3 different new cards all with the same results
With a known good microSD card, insert in cam with cam totally powered down and discharged. For Battery Pro, this means physically removing the battery and let cam discharge completely. It’s possible the version of Busybox distribution not tolerant of hot insert for certain microSD brands.