Just to update,

By using a different model from the same manufacturer this is working (SFSD4096N3BM1TO-E-GE-2D1-STD)

So it might be a problem with the card, with the size of the card (512Mb vs 4Gb) or with the formatting of the card (Fat16 vs FAT32).

Hi all, I bought a swissbit industrial MicroSD card (512MB) and I am trying to use it with an ESP32 board. ( https://eu.mouser.com/ProductDetail/Swissbit/SFSD0512N1BM1TO-I-ME-221-STD/?qs=d7b8vw%252BBfo1QaSYQg0T1WQ== ) The board works flawlessly with normal MicroSD cards (Sandisk for instance), but I...