1 - is not paired: - got to the 'Settings'->'Bluetooth Cuff' - hold the pair button to see the 'P' character is flashing. - hit the scan button to find the Bluetooth Cuff. - wait until the device finds the Cuff. - On device connecting to the Cuff successfully the cuff shall show tree on going 'O' and after 2~3 seconds shall show 'OK'. - After successful connection the Cuff turns off and the device displays 'Device Connecting ...' and goes into wait for connection for later measujrements reading. 2 - is paired: - got to the 'Settings'->'Bluetooth Cuff' - press the pair button to see the 'O' character is flashing. - hit the scan button to find the Bluetooth Cuff. - wait until the device finds the Cuff. - On device connecting to the Cuff successfully the cuff shall show tree on going 'O' and after 2~3 seconds shall show 'OK'. - After successful connection the Cuff turns off and the device displays 'Device Connecting ...' and goes into wait for connection for later measujrements reading.