I am having difficulty getting the Lifetab to pair with my PC. I get the message "NO DEVICE CONNECTED Your device does not appear to be connected. Please check that your Android Device is connected via the USB and try again." I have tried all the troubleshooting tips and downloaded updated drivers from the Medion website to no avail. Has anybody got any helpful hints. Not able to contact Medion support today and public holiday here tomorrow as well.