12:36:32 lte,async lte1: sent AT+EEMOPT=1
12:36:32 lte,async lte1: rcvd OK
12:36:32 lte,async lte1: sent AT*MRD_SN?
12:36:33 lte,async lte1: rcvd *MRD_SN:723C03BD5064
12:36:33 lte,debug lte1: serial: *MRD_SN:723C03BD5064
12:36:33 lte,async lte1: sent AT+CFUN=4
12:36:33 lte,async lte1: rcvd OK