Quectel Ec25 Change — Imei

: Frequent modification or using incorrect factory reset commands like AT+QPRTPARA=3 can potentially harm or "kill" the module's flash memory. IMEI change (repair) on GL.iNet MiFi (EC25 )

: You need to get the modem into a state where it can communicate via the fastboot protocol. This is often done by sending a special AT command before the modem fully boots: quectel ec25 change imei

Mounted on a development board, PCIe evaluation board, or embedded inside a cellular router with exposed serial access. : Frequent modification or using incorrect factory reset

This forces the modem to enter fastboot mode. PCIe evaluation board