Fibocom L850gl Change Imei May 2026

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. fibocom l850gl change imei

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

Understanding the motivation helps frame the technical challenge. Legitimate (rare) reasons include: If Windows fails, boot a Linux live USB

Illegitimate (common) reasons:

For the rest of this article, we will assume you fall into the "testing/repair" category. Then run the same AT+EGMR commands

After reboot, re-open the COM port and run:

AT+CGSN

The output should now show your new IMEI.