Below is a detailed guide on the installation and technical process for modifying the IMEI on a Quectel module using AT commands.
Alternatively, use AT+EGMR=0,7 to retrieve the IMEI string specifically.
If the command fails or returns a CME ERROR , consider the following: How to get Quectel standard firmware - Technical Subjects
Download and install the official Quectel LTE Windows USB Driver . Once installed, connect the module to your computer via USB. Open the Device Manager to verify that several serial ports have appeared, specifically the Quectel USB AT Port .
If you are using Linux (e.g., PinePhone), stop the ModemManager service first to prevent it from locking the serial port: systemctl stop ModemManager.service ``` Use code with caution.
Record the current number as a backup in case you need to restore the original factory settings.
Before attempting a change, verify the module's current identification to ensure it is communicating correctly. Open the serial port corresponding to the . Send the following command to query the current IMEI: AT+CGSN Use code with caution.