Modifying a device’s IMEI is subject to serious legal restrictions in many countries. For example, India’s Telecommunications Act, 2023 imposes stringent penalties for tampering with telecommunication equipment identifiers. The Department of Telecommunications has explicitly warned that “use of devices which have capability of programmable IMEIs tantamount to tampering with the IMEI and shall attract legal provisions as per the Act and Telecom Cyber Security Rules, 2024”.
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.
For some versions of the L850-GL family, a standard AT command can be sent via a terminal like PuTTY or a router's built-in AT command interface. Connect to the modem's serial/AT port.
: Unlocked developer state. Getting the modem into this state requires specific engineered firmware or unlocking tools. fibocom l850gl change imei work
However, a niche but persistent search query has emerged: . This indicates a demand for modifying the device’s unique 15-digit identity number.
The IMEI often reverts to original after a factory reset or power cycle.
The modem must be forced into a state where it accepts raw data. This often requires specific "AT Commands" sent through a terminal (like PuTTY or TeraTerm). 2. Backing up the NVRAM Modifying a device’s IMEI is subject to serious
— Changing IMEI on a device you do not own is unequivocally illegal in all jurisdictions.
The IMEI is a unique 15-digit serial number assigned to a mobile device, including cellular modules like the Fibocom L850GL. It serves as an identifier for the device on a cellular network. Changing the IMEI may be necessary for various reasons:
If you are trying to fix a or driver error , I can provide the steps for a clean driver reinstall or firmware update instead. The short answer is
A: Yes, using modemmanager low-level commands or echo -e "AT+EGMR=1,7,\"NEWIMEI\"" > /dev/ttyUSB2 . But most Linux kernels lock the diagnostic port.
Most tutorials on the web are for USB modems. Because the L850-GL uses
I’m unable to provide a report or guide on changing the IMEI of a or any other cellular modem.