If you're having problems with your SmartThings Hub, a simple reboot may be all you need. The resetting process for the SmarTthings motion sensor should be pretty straightforward. If your motion sensor isn't working correctly, a reset may be necessary. Here's how to do a manual reset and configuration. You can use one of three techniques to restart your SmartThings hub. For 7 seconds, press and hold the recessed Reset button on the back of the hub (release when the LED turns off) Plug the Hub back in after unplugging it (fast restart)  Unplug the hub for at least 6 minutes before reconnecting it.