Hi, I've just bought concox jm01 gps tracker.
I set APN like APN,internet# (my cellular data provider using this) and I set center number.
But device didn't answser my sms commands.
when I call devices's number its calling and gsm light (green one) continuously in green (in normally slow flashing). I mean gsm signal is ok. still doesn't answer my sms commands. Can you help me about this.