If the IMEI change doesn't "stick" after a reboot, the modem is likely pulling the original ID from a protected bootloader partition. In this case, a deep firmware flash is the only solution. Is it Worth It?
The ability to see the modem under "Ports (COM & LPT)" in Device Manager.
In this article, we will explore the technical steps, necessary tools, and critical risks involved in changing the IMEI of a Fibocom L850-GL. fibocom l850gl change imei
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.
The L850-GL is built on the chipset. Unlike older Qualcomm-based modules that use standard AT commands for IMEI modification, Intel-based modems are significantly more locked down. Modification usually requires interacting with the modem's firmware or using specialized engineering tools. Prerequisites If the IMEI change doesn't "stick" after a
Often looks like AT+XIMEI="your_new_imei" .
Tools like PuTTY , Tera Term , or NB-IoT/LTE Engineering tools . The ability to see the modem under "Ports
Correct Fibocom/Intel XMM 7360 drivers installed on a Windows PC.
After sending, use AT+CGSN to check if the modem reports the new identity. 3. Using Specialized Software
