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.
If the command fails or returns a CME ERROR , consider the following: How to get Quectel standard firmware - Technical Subjects
Alternatively, use AT+EGMR=0,7 to retrieve the IMEI string specifically.
In your serial terminal, enter the command below, replacing the placeholder with your desired 15-digit number: AT+EGMR=1,7,"YOUR_NEW_15_DIGIT_IMEI" ``` Use code with caution.
Run AT+CGSN again to confirm the module is now broadcasting the new identification.
Configure your serial tool to the following default settings: Baud Rate: 115200 Data Bits: 8 Parity: None Stop Bits: 1 2. Verifying Current IMEI
If successful, the module will return an OK response.
Record the current number as a backup in case you need to restore the original factory settings.
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