AT+QPOWD=1 Power it back on. Reconnect to the AT port and run:
AT+EGMR=1,7,"new_imei" Example:
QFirehose.exe -p COM6 -f change_imei.xml The change_imei.xml should contain: quectel change imei install
Insert a SIM card and try to register on the network: AT+QPOWD=1 Power it back on
AT+EGMR=1,7,"123456789012345" Response should be OK . Then reset: quectel change imei install