Even though L850-GL uses an Intel baseband, some variants share Qualcomm-style NV storage. This method is more promising but dangerous.
For those using the L850-GL in a router, the OpenWRT community has developed scripts like xmm75xx-info or IMEIChanger to interact with the Intel chipset. 3. Diagnostic Mode & QCN (Snapdragon-style)
A Russian-language guide documents the procedure for L860GL modules, which many users report working for L850GL as well. fibocom l850gl change imei work
Unlike older cellular modems (such as some Quectel or Huawei modules) where a simple, universal command like AT+EGMR=1,7,"YOURIMEI" permanently updates the device identity, the Fibocom L850-GL operates differently.
specifically, the process usually involves interfacing with the modem via a serial port using AT Commands or specialized firmware tools. AT Command Method : While some modems accept AT+EGMR=1,7,"[NEW_IMEI]" Even though L850-GL uses an Intel baseband, some
Fibocom L850-GL Go to product viewer dialog for this item. IMEI Modification: Mechanics, Technical Limits, and Workarounds Fibocom L850-GL Go to product viewer dialog for this item.
Using a duplicated IMEI can cause network service interruptions for both your device and the original device. Conclusion modern firmware (post-2019) from Lenovo
The L850-GL is based on an Intel XMM 7560 modem chipset. This chipset has known AT command backdoors that allow IMEI reprogramming if you can enter low-level diagnostic modes. However, modern firmware (post-2019) from Lenovo, Dell, and HP has patched many of these vulnerabilities.
Because a permanent hardware-level IMEI write is blocked on most