I have a WIZwiki-W7500 with an micro SD slot. I have tried to run the diagnostics program W7500x_WZTOE_MANU.bin and I get the following result
on the serial port connected to the USB port:
val: 12C0, getTIC100US: 12C0, (12C0)
…PHY is linked.
[DEBUG] SD Card Test
[DEBUG] init ret : 1 , SD Card Type : 0
SD Test Fail!![DEBUG] CID / MID : 0x00
[DEBUG] CID / OID :
I do not think this is the normal result but I do not find any information how to get the SD-slot working.