If you encounter unexpected errors during the programming sequence, check the following common failure points:
AT+CGSN=1
Before resorting to an IMEI change, consider these legitimate alternatives: quectel change imei install
For running terminal emulation software and flashing utilities. Required Software If you encounter unexpected errors during the programming
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 quectel change imei install
What Is an IMEI Lock and How Does It Work? A Complete Guide - floLIVE
Reconnect to the and issue the identification query: AT+CGSN Use code with caution.