SC60-CE board only shows as “Qualcomm USB Composite Device” in Windows

IoT Modules Smart Module
1

I am testing a Quectel SC60-CE module on a carrier PCB (with USB-C). When I connect it to my Windows 10 laptop, Device Manager only shows “Qualcomm USB Composite Device” under USB controllers.

Expected: it should expose multiple COM ports such as:

  • Quectel USB AT Port
  • Quectel USB Modem Port
  • Quectel USB Diagnostics (DM) Port
  • Quectel USB NMEA Port

But these do not appear. adb.exe also does not detect the device.

What I tried:

  • Installed Android SDK platform tools (adb).
  • Tested different USB cables and ports.
  • Windows still only loads the generic composite driver.

Question:
Which Windows USB driver package should I use for SC60-CE to get the AT/Modem/Diag ports exposed? Should I install the Quectel_Windows_USB_Driver(Q)_NDIS_V2.8_EN, ECM, or MBIM package for this module?

2

Our SC60 SMART module don’t have those Individual port, in the device manager there only one port.
If you want to send the AT command, please use your serial tool to detect the USB port,
there are two USB port can be detected, don’t use the port in the device manager to send the AT command.