Turn on Bluetooth communication in your mobile device
Launch your Instint app and click (+)
Go to Settings and select Switch Sensor Device.
Select your device from the list.
The scanner will confirm establishing the connection by flashing the LED light. If the list contains several devices then keep close your scanner to the smartphone and select a device with the strongest signal. If still it is difficult to select the right device from the list then take your device and smartphone, move away from othes scanners and try to connect your scanner again.