Hi everyone,

I was experiencing I/O errors with SD cards on a Luckfox Pico B. The cards were detected by the system, but any read/write attempt failed:

[ 0.137225] mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
[ 0.149840] input: adc-keys as /devices ...