The ability to see the modem under "Ports (COM & LPT)" in Device Manager.
The Fibocom L850-GL is a popular M.2 LTE Cat9 module widely used in laptops like the Lenovo ThinkPad and HP EliteBook. While it offers excellent connectivity, enthusiasts and power users often seek to modify its settings—including the —to bypass carrier restrictions, fix compatibility issues, or for research purposes.
Before attempting any modification, ensure you have the following: fibocom l850gl change imei
Tools like PuTTY , Tera Term , or NB-IoT/LTE Engineering tools .
Because the L850-GL is an Intel-based card, many users find success using or Phone Tool (often used by OEMs for factory calibration). These tools allow you to read and write the NV (Non-Volatile) items where the IMEI is stored. Common Challenges and Troubleshooting The "Read Only" Error The ability to see the modem under "Ports
After sending, use AT+CGSN to check if the modem reports the new identity. 3. Using Specialized Software
Type AT+GTUSBMODE=7 (or the specific mode code for your firmware version). Before attempting any modification, ensure you have the
The modem will restart, and new ports should appear in the Windows Device Manager. 2. Finding the Right AT Command
For many Intel modems, the standard AT+EGMR command used for Qualcomm chips will not work. Instead, engineering commands like AT+XCPERM or specific manufacturer-locked commands are often required.