I've lost my phone today and I'm unable to send any locate or lock commands via avast anti-theft, seemingly because I didn't have mobile data enabled. I get the message "we are unable to connect to your device". The phone was switched on though and should have a decent amount of battery left. I've tried sending SMS commands from a friend's mobile, but nothing happens and they don't show up in the 'commands' part of the web interface. Is there anything else I can do? I'm guessing time is of the essence before the battery dies.