Quectel Change Imei Install Jun 2026

Secure the PCIe or M.2 card to the baseboard using the provided screws.

| Issue | Possible Cause | Solution | |-------|----------------|----------| | AT+EGMR=0,7 returns nothing or an error | Wrong COM port, wrong baud rate, or driver not installed correctly | Verify the port in Device Manager; try both 115200 and 9600 baud; reinstall the Quectel USB driver | | Command returns ERROR or CME ERROR | IMEI modification is blocked by firmware, or the command syntax is incorrect | Double‑check the command (e.g., AT+EGMR=1,7,"15digits"). If still failing, your firmware may have disabled the feature; you may need QFirehose or an older firmware version | | IMEI change seems successful but does not survive a reboot | The modification was only applied temporarily or not saved to non‑volatile memory | Ensure the module is not in a special “test” mode; try AT+CFUN=0 before writing, then reboot normally | | “Modem interface not up” or “WAN connected” errors (EG25‑G) | The module is fully online and connected to a network, which prevents IMEI changes | Disconnect all network connections (Ethernet, WiFi) and try again while the modem is not fully active | | Module shows a generic IMEI (e.g., all zeros) after a firmware flash | The EFS partition was corrupted or erased | You will need to restore from a backup using QFirehose, or write a new IMEI using the raw EFS method | quectel change imei install

⚠️ : Changing IMEI is illegal in many countries (e.g., USA, EU, China, India) unless you are the manufacturer or have explicit permission. It can be considered a felony (device tampering). Secure the PCIe or M

Here is a of what you are probably trying to achieve, along with the technical steps and limitations. It can be considered a felony (device tampering)

If you are on Linux, you must stop services that might be using the modem port to avoid conflicts. systemctl stop ModemManager.service Use code with caution. Copied to clipboard PINE64 Forum Connect to the Modem Open your terminal client at a baud rate of minicom -b 115200 -D /dev/ttyUSB2 : Open PuTTY, select "Serial," and enter your COM port. Verify Connection & Current IMEI