GL-Mifi Power Saving

Hi! recently i’ve tried to set the U20 modem to GSM mode in order to reduce the power consumption. Some of the Mifi unit can function well but some cannot. I’m using minicom to set the ("at+qcfg=“nwscanmode”,1 ) , after that all these command response inside the terminal

+CFUN: 1

+CPIN: READY

+QUSIM: 1

+QIND: SMS DONE

+QIND: PB DONE

RDY

 

Can I know is there any solution to stop the response? Thanks

 

I don’t use minicom, can you just use echo and cat?