Find the reset button or reset hole on the device, press and hold the reset button for more than 3 seconds or poke the reset hole with a needle for 3 seconds, the device will restore the default and restart (you need to tore-pair after recovery)
Find the reset button or reset hole on the device, press and hold the reset button for more than 3 seconds or poke the reset hole with a needle for 3 seconds, the device will restore the default and restart (you need to tore-pair after recovery)