Hey there,
I recently got myself a W530 and also decided that it was a good idea to fit it with a 4G modem (and also because the hardware allows for it

). I ended up purchasing a Quectel EC25, but after installing it and 1vyrain I ran into an issue: The modem is not being detected whatsoever. I checked not only the hardware diagnostics tool but also lsusb and even reset the bios to the optimized defaults, but no dice. I checked if the WWAN slot and card were even working and installed a WPAN card into the WWAN slot of the Thinkpad, and installed the WWAN card into the Dell studio 1737 which served as the donor for the WPAN card and both cards were detected in the other device respectively.
My modem also doesn't seem to have any non-standard pinout:
https://forums.quectel.com/uploads/shor ... pJa2kk.pdf
Since all my testing so far didn't discover the reason for this problem I'm just confused and ultimately out of ideas.
Any idea what could be the problem?
Thanks!