EM120R-GL "No SIM"

System Modell: Lenovo X13 Yoga Gen 2 20W8

Operating System: Windows 10 64bit 22H2

Quectel Driver Versions: (Driver)

Driver Versions according to Windows Device-Manager:

  • (Quectel PCI Express)
  • (Quectel UDE Device)
  • (HighSpeed USB Composite Device (UDE))
  • (Quectel MBIHV Mobile Broadband Firmware Device)
  • (Quectel QMUX Interconnect)
  • (Quectel Wireless Location Sensor)

Problem Description:
The inserted SIM card from TELEKOM is no longer recognised.
This SIM card is functional as a data connection could be established during a test in a smartphone.
Lenovo Support recommends an OS reinstallation.
How can the problem be solved without an OS reinstallation?
Any suggestions will be gratefully received.

What does AT+QUIMSLOT? return?

Unable to check, as I don’t see any serial ports for the modem in Windows Device-Manager.

Quectel EM120R-GL Device-Manager

How do I connect to the modem to issue AT-commands?