Quectel is a popular manufacturer of cellular modules used in various IoT and M2M applications. Some users may need to change the IMEI (International Mobile Equipment Identity) of their Quectel module for various reasons, such as:
Open your chosen serial terminal tool and open the connection using these settings: Baud Rate: 115200 (default for most Quectel modules) Data Bits: 8 Parity: None Stop Bits: 1 Flow Control: None
Note: The 1,7 parameters specifically target the IMEI storage in the module's NVRAM.
Operators often detect changed IMEIs. A network might identify the IMEI as illegitimate and deny network registration. Summary of Key AT Commands Check IMEI AT+GSN or AT+EGMR=0,7 Change IMEI AT+EGMR=1,7," " Restart Modem AT+CFUN=1,1 Check SIM Status AT+CPIN? quectel change imei install
Instruct the module to perform a full internal software reset to reload the NVRAM profiles: AT+CFUN=1,1 Use code with caution.
In many jurisdictions, altering an IMEI is illegal and can lead to criminal charges. Warranty & Security:
Most modern Linux distributions (with kernels 4.x and newer) include native support for Quectel modules via the option serial driver. Quectel is a popular manufacturer of cellular modules
Confirm that the hardware successfully committed the new data to the permanent storage layer.
Misusing QFirehose or QPST can permanently brick your module. Never use these tools unless you have a full backup of the module’s firmware and EFS and you are following a verified guide from a trusted source. Even Quectel’s own forums are littered with stories of bricked devices.
: Use a serial port tool like PuTTY or MobaXterm set to the default baud rate (usually 115200 ) to send commands. How to Change the IMEI A network might identify the IMEI as illegitimate
AT+QPRTPARA=0
In many countries (including the US, UK, and EU), changing a device's IMEI is illegal or strictly regulated to prevent fraud and theft.
Modifying the International Mobile Equipment Identity (IMEI) of a Quectel module is typically done for , such as restoring a factory IMEI after a firmware corruption. While Quectel does not officially support or provide commands for customers to modify IMEIs, the industry-standard AT+EGMR command is widely used by developers for this purpose. Prerequisites and Installation
Open a serial terminal program such as PuTTY or Tera Term.