My Orange Pi Zero expansion board is probably broken, how do I know for sure?

[hillz]

Yesterday I nearly burned my orange pi zero because of the faulty LAN cable, after that, everything I plugged into the expansion board couldn't be detected anymore by lsusb or dmesg, it works fine though if I plug in my thumb drive / usb wifi into the usb port on the main board (Next to the LAN port). How do I know for sure that my expansion board is broken and not the pin headers in the main board ? I'm not an electronic guy I don't know anything about soldering and stuff.

[awef]

try playing some audio?

[awef]

mostly everything on the expansion board is "brainless", so if it doesn't work, it's probably your main board

[hillz]

mostly everything on the expansion board is "brainless", so if it doesn't work, it's probably your main board

I haven't tried playing some music yet, are you saying that it's meaningless to purchase another expansion board since it's the pi that's broken not the expansion board itself?

[awef]

Probably the case.  The expansion connector 95% just converts pins into pretty shaped connectors that you're familiar with.