I previously has installed on my Windows 11 laptop the drivers for RM520N-GL working fine. I had to uninstall them due to some conflict with the drivers for RM500U. Once finished the activity with RM500U I uninstall the related drivers and tried to install the ones for RM520N-GL. No way now I can get the modem properly recognized. This is my actual status:
I tried many things, installing the drivers in different order, rebooting the laptop every new installation/de-installation, remove driver from the system using:
pnputil /enum-drivers | findstr /i quectel
pnputil /enum-drivers | findstr /i qualcomm
pnputil /enum-drivers
pnputil /delete-driver oemXX.inf /uninstall /force
Nothing worked…
Here the drivers I am installing:
Also, even if the Quectel USB AT Port (COM4) “looks” fine, I am not able to connect via serial connection the modem.
Anyone else faced this issue? Any suggestion?
Thanks in advantage for your support.

