Quectel Change Imei Install Review

AT+QPRTPARA=3

| Error | Likely Cause | Solution | |-------|--------------|----------| | ERROR after AT+EGMR | Command disabled in firmware | Use QFirehose instead | | QFirehose: No response from DIAG port | Wrong port or driver not installed | Reinstall Quectel drivers, reboot PC | | Write failed: NV corruption | NV memory locked | Send AT+QNV=... to unlock (advanced) | | Module not entering download mode | Wrong pin timing | Use hardware USB_BOOT method per datasheet | | New IMEI shows as 0 or unknown | Write incomplete | Repeat process, ensure power stable | quectel change imei install

In many regions, changing an IMEI is illegal and can lead to network blacklisting or prosecution. AT+QPRTPARA=3 | Error | Likely Cause | Solution