A few days ago, one of [Severin]’s SD cards died on him, Instead of trashing the card, he decided to investigate what was actually wrong with the card and ended up recovering most of the data… ...

Custom made PCB with a ESP32-PICO-V3-02 and a TF card slot. Since both reading and writing exsisting files works fine, I don't think it is a hardware problem. Open an exists file on sd card for ...