Do not attempt. If you need a clean IMEI, replace the module. If you are a repair professional restoring factory IMEI after corruption, contact Fibocom directly for their authorized service tool (requires NDAs and certification).
Open Windows Command Prompt as Admin:
Always check local laws before attempting any hardware modifications. It is illegal to change a device identity number in many countries. Doing so will also instantly void your hardware warranty. Прошивка: - Vertell fibocom l850-gl change imei
According to user reports, the AT+GTSN command successfully changed IMEI on Fibocom firmware for modules including the L850 series.
Any modification to the modem's firmware or NV memory immediately voids the manufacturer's warranty. Lenovo, HP, and other OEMs explicitly exclude warranty coverage for modules that have been altered outside of official update procedures. Do not attempt
Its broad band support—including multiple LTE-FDD and LTE-TDD bands—makes it suitable for global roaming. The modem is designed for tight integration into a host device's hardware and software stack, which inherently limits user modification capabilities.
Users typically seek to change the IMEI for the following reasons: xmm7360/xmm7360-usb-modeswitch: Tools for the ... - GitHub Open Windows Command Prompt as Admin: Always check
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Searching for "Fibocom L850-GL IMEI change tool" will often lead to shady corners of the internet. Be aware of the risks involved with third-party software: