Fibocom L850gl Change Imei Work Jun 2026

Attempting to modify the IMEI of an L850-GL carries severe risks: The modem may stop responding entirely.

: Even with a changed IMEI, carriers can often detect a laptop modem via its TTL (Time to Live) Technical Approach & Limitations AT Commands (Read Only) You can view your current IMEI by sending to the modem's COM port (usually /dev/ttyACM0 or similar). Standard write commands like AT+EGMR=1,7,"NEW_IMEI" do not work PCIe vs. USB Mode often runs in fibocom l850gl change imei work

If you have worked with Quectel or Sierra Wireless modems, you might be familiar with basic AT commands like AT+EGMR=1,7,"IMEI" . Running this directly on a Fibocom L850-GL will output an ERROR response. mdsdtech/Fibocom-L860GL-IMEI-Changer - GitHub Attempting to modify the IMEI of an L850-GL

Alternatively, using :

The direct answer depends on the firmware configuration and security level of your specific hardware. The SecureLevel 0 Exception A permanent or persistent IMEI change on the Fibocom L850-GL USB Mode often runs in If you have

The short answer is . While it is technically possible on specific firmware versions, this module is notoriously difficult to modify, unlike its counterparts like the Sierra Wireless EM7455 or Quectel modules.

Given the architectural similarities between the Fibocom L850GL and its successor L860GL, methods developed for the L860GL have been successfully adapted.