Technically, the IMEI on the Fibocom L850GL is stored in the module’s NVM (Non-Volatile Memory). In the past, many modular modems allowed for relatively straightforward IMEI rewriting using standard AT commands (such as AT^CIMEI or similar proprietary commands). However, modern firmware and hardware architectures have made this significantly more difficult.
Response example: +CGSN: 123456789012345
Use the command AT+EGMR=1,1,"YOUR_NEW_IMEI" (replace with your 15-digit number).
The Fibocom L850GL is a ubiquitous LTE module found in countless laptops, particularly Lenovo ThinkPads, Dell XPS models, and various other premium ultrabooks. With its Intel XMM 7360 modem at the core, this M.2 4G card provides Category 9 LTE connectivity with theoretical download speeds reaching 450 Mbps on FDD LTE bands. fibocom l850gl change imei work
It is critical to note that changing an IMEI is (including the UK and many European countries) if done to mask a stolen device or clone another device's identity. In the United States, it is generally prohibited to tamper with mobile identification numbers.
Changing the IMEI on a Fibocom L850GL may:
For Android-based systems, tools like Change-IMEI-Android implement exactly this approach — the IMEI is spoofed in runtime memory while the physical file remains untouched. While designed for smartphones, the principle can be adapted for router-based applications running Android or modified Linux distributions. Technically, the IMEI on the Fibocom L850GL is
The Fibocom L850-GL is a popular, high-performance CAT9 LTE module, frequently found in Lenovo laptops and industrial IoT devices. Because it often requires specific cellular plans, users frequently ask:
In many cellular modules, IMEI modification is performed via AT commands. For Fibocom L850GL, the standard AT+CGSN command only reads the current IMEI. Writing a new IMEI requires vendor‑specific commands.
Ensure you have the Intel XMM drivers installed. You must be able to see the modem's AT port in your Device Manager (e.g., as a COM port). Method 1: Manual AT Command It is critical to note that changing an
AT+EGMR=1,7,”NEW_IMEI” (common on Qualcomm modems, but Intel uses different syntax).
For most users, investing time in configuring APNs or switching to a more flexible modem module is a better path to success.
Would you like assistance with any of the legal alternatives above?
Community discussions point toward the existence of such tools, but they are not widely shared due to legal and ethical concerns. On the Chinese forum Right.com.cn, a user asked for the same information and was told that “大体上需要调试软件还要配套的AT命令” – “you need debugging software and matching AT commands”. Another user mentioned “github上有软件，只能在Windows上改” – “there is software on GitHub, can only be changed on Windows”. However, attempts to locate a working, public GitHub repository for L850‑GL IMEI rewriting have so far been unsuccessful.