Fibocom L850gl Change Imei ◆ (DIRECT)

There are several reasons why one might consider changing the IMEI of a device:

If you search online for "Fibocom L850-GL change IMEI," you will find forum posts suggesting commands like:

AT+EGMR=1,7,"New_IMEI"
AT+EGMR=1,10,"New_IMEI"
AT+EGMR=1,12,"New_IMEI"

Let me save you hours of frustration: These commands do not work on the L850-GL.

The AT+EGMR (Enhanced Generic Model Reset) command is used on older Qualcomm or MediaTek chips. The Intel XMM 7560 inside the L850-GL uses a proprietary, manufacturer-locked interface. Even if you send the command via a terminal (PuTTY, minicom, or RealTerm), the modem will return:

ERROR or +CME ERROR: operation not allowed

Why? Because Fibocom and Intel implemented Secure IMEI Write Protection. The IMEI can only be changed if you have:

The change is only temporary until a power cycle. Send:

AT+CFUN=1,1

Or physically restart your laptop / re-seat the modem.

If Windows fails, boot a Linux live USB. The modem usually appears as /dev/ttyUSB2. Then:

sudo modprobe option
sudo sh -c 'echo "1199 9079" > /sys/bus/usb-serial/drivers/option1/new_id'
sudo screen /dev/ttyUSB2 115200

Then run the same AT+EGMR commands.

Final warning: Before proceeding, ensure you are legally permitted to change the IMEI in your country and for your specific use case. In most places, doing this without explicit authorization from the network operator or device manufacturer is a felony.

Need help? Leave a comment below with your exact laptop model and modem firmware version (get with ATI).

Changing the IMEI of a Fibocom L850GL: A Comprehensive Guide

The Fibocom L850GL is a popular cellular module used in a wide range of applications, including IoT devices, industrial routers, and mobile broadband solutions. One of the key features of this module is its ability to support multiple frequency bands and networks, making it a versatile solution for global deployments. However, in some cases, users may need to change the IMEI (International Mobile Equipment Identity) of the Fibocom L850GL module. This article provides a detailed guide on how to change the IMEI of a Fibocom L850GL module, including the reasons for doing so, the methods involved, and the precautions to take.

What is an IMEI?

The IMEI is a unique 15-digit serial number assigned to a mobile device, including cellular modules like the Fibocom L850GL. It is used to identify a device on a cellular network and is typically used for authentication and tracking purposes. The IMEI is usually stored in the device's firmware and can be retrieved using AT commands.

Why Change the IMEI of a Fibocom L850GL?

There are several reasons why a user may need to change the IMEI of a Fibocom L850GL module:

Methods for Changing the IMEI of a Fibocom L850GL fibocom l850gl change imei

There are two primary methods for changing the IMEI of a Fibocom L850GL module:

Method 1: Using AT Commands

The Fibocom L850GL module supports a range of AT commands that can be used to configure and manage the device. To change the IMEI using AT commands, follow these steps:

Method 2: Using Firmware Modification

The second method involves modifying the firmware of the Fibocom L850GL module to change the IMEI. This method requires a deeper understanding of the module's firmware and may require specialized tools and expertise.

Precautions and Considerations

Changing the IMEI of a Fibocom L850GL module can have significant implications, and users should exercise caution when doing so:

Conclusion

Changing the IMEI of a Fibocom L850GL module is a complex process that requires careful consideration and planning. Users should understand the reasons for changing the IMEI, the methods involved, and the precautions to take. By following the guidelines outlined in this article, users can successfully change the IMEI of their Fibocom L850GL module and ensure compliance with regulatory requirements and network operator specifications. There are several reasons why one might consider

FAQs

By understanding the process and implications of changing the IMEI of a Fibocom L850GL module, users can ensure a smooth and successful experience.

The Fibocom L850-GL is one of the most ubiquitous 4G LTE Cat 9 modules found in premium business laptops over the last five years. If you own a Lenovo ThinkPad (X1 Carbon, T490, T590), a Dell XPS, a Latitude, or a HP EliteBook, chances are the "WWAN" (Wireless Wide Area Network) card inside is this exact module.

Engineered for global compatibility (the "GL" stands for "Global"), it supports LTE speeds up to 450 Mbps, multiple bands, and even GPS. It connects to your motherboard via the M.2 (NGFF) Key B interface.

But for a niche group of users—network engineers, hardware enthusiasts, and unfortunately, device fraudsters—the question arises: Can you change the IMEI on a Fibocom L850-GL?

The short answer is: Technically yes, but practically no for most users, and legally never.

Let’s explore why someone would want to, how it could be done, and why you should think twice.

Yes, but only for OEMs or large repair centers with a Fibocom Service Account.

Fibocom offers a tool called Fibocom Update Tool (FUT) or Fibocom Engineering Toolkit to authorized partners. This tool, together with a signed "NVM Package", can re-write the IMEI. The process requires: Let me save you hours of frustration: These

Without this access, you are effectively locked out by design. This is a security feature, not a bug.

Let’s assume you ignore all warnings and somehow succeed in changing the IMEI via hardware hacking.