: This often occurs if the modem is actively managed by a service. On Linux systems, stop the ModemManager service before sending commands.
: Modification may fail if the module is connected via certain WAN interfaces. Disconnect external ethernet or network cables during the process. 2. Fastboot Method (For Advanced Recovery) quectel ec25 change imei
There are two main ways to interact with the EC25's identity: using through a serial terminal or fastboot for deeper system recovery. 1. Using AT Commands (Recommended for Repair) : This often occurs if the modem is
: Send AT+CGSN or AT+EGMR=0,7 to verify the current number. Update IMEI : Send AT+EGMR=1,7,"YOUR_NEW_IMEI" . quectel ec25 change imei