Any people with iTracker RAK8212 here?

@Kartman
I tried this:

require('QuectelBG96').connect(usart, {
      apn : "web.vodafone.de",
      username : "vodafone",
      password : "vodafone"
    }, function(err) {
      console.log("Connected!");
      if (err) throw err;
      gprs.at.cmd('AT+QFOTADL="http://mydomain.de/update.zip"',1000,print);

But how do I know that it worked? There is no console output. Or how much time does it need? Kind regards