There are few steps you can follow to find out why your app cannot find the Smart Meter while scanning for new devices: 1.Check whether the Smart Meter is properly plugged into the socket? If NO→ Plug the Smart Meter in and scan again. If YES → 2.Check whether your smartphone/tablet Bluetooth is turned on? If NO→Turn on the Bluetooth and scan again. If YES→ 3.Check whether there is another device paired with your Smart Meter? (Other Smartphone or tablet) If Yes →Turn off the Bluetooth and quit SmartMeter app on that device. If NO→ 4.Check whether your smartphone/tablet is within the Bluetooth range? If NO →Move closer to the SmartMeter and scan again. If YES → Reboot your device OR turn the bulb off manually and then turn it on. After that make sure the above problems are solved and try scanning again.