Quectel Ec25 Change Imei

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Alex began by studying the Quectel EC25's datasheet and searching online forums for any clues on how to modify the IMEI. He discovered that the module's firmware was based on a Qualcomm chipset, which made things a bit more complicated. Some forum posts suggested that changing the IMEI required a deep understanding of the module's internal workings and possibly even modifying the firmware.

Quectel provides an extended proprietary command structure via AT+EGMR to write an alternate IMEI into the device's secondary configuration sector. AT+EGMR=1,7," " Use code with caution. Example Execution

Before making changes, verify that the terminal is communicating with the module and record the current IMEI.

If you dislike AT commands, Quectel provides a PC tool called (Quectel Communication Tool). quectel ec25 change imei

Before running commands, understand the legitimate use cases:

This command is used to write the IMEI to certain chips, but on most Quectel EC25 firmware versions, it is either:

Ensure the correct Windows or Linux USB drivers are installed so the system recognizes the module's serial interfaces (specifically the AT Command port).

If you are running into specific errors during this process, let me know. I can help you troubleshoot if you share: The exact your terminal returns This public link is valid for 7 days

AT+EGMR=1,7,"[15-digit IMEI]"

Unknown command. Your firmware doesn’t support AT+EGMR . Try AT+EGMR=1,7,"IMEI" without spaces, or upgrade firmware.

This guide provides a step-by-step walkthrough of how to safely change the IMEI on a Quectel EC25 module using standard AT commands. Prerequisites and Security Warnings

: In many jurisdictions (including the US, UK, EU, and others), altering a device's IMEI is illegal or strictly regulated. Can’t copy the link right now

The Quectel EC25 is one of the most popular LTE Cat 4 modules in the IoT world. It supports multiple frequency bands (EC25-E, EC25-A, EC25-AU, EC25-V, etc.) and interfaces (USB, UART, PCIe). Like all cellular modems, it has a unique 15-digit IMEI burned into its firmware.

Or hard-reboot the module by cycling the power or toggling the PERST# (Reset) pin. Step 6: Verify the Changes

Changing the International Mobile Equipment Identity (IMEI) of a Quectel EC25 module is a technical procedure primarily used for authorized repairs, network compatibility testing, or restoring lost identification data after a firmware corruption.

Sometimes the diagnostic port is hidden. You may need to send an AT command to enable the DM port: