/interface lte at-chat lte1 input="AT*PROD\?"
/interface lte at-chat lte1 input="AT*PROD=1"
/interface lte at-chat lte1 input="AT*MRD_IMEI=D"
/interface lte at-chat lte1 input="AT*MRD_IMEI=W,0101,11JAN1970,android_phone_imei"
/interface lte at-chat lte1 input="AT*PROD=0"
You can try this on MT Lhgg cat 6
/interface lte at-chat lte1 input="AT+SPIMEI=0,"000000000000000""
Once changed reboot router IMEI changed.
/interface lte at-chat lte1 input="AT+SPIMEI?"