Connection and Go Plus + Issue

My Pokemon Go Plus + has an issue that whenever the main button is pressed, it will flash once and then make the sound that happens when it connects to a device but in this case it had not connected to anything. I've tried reseting it many times but the same problem keeps occurring. I am not able to connect it to my device and the device doesn't pick up any trace of the Go plus when I attempt to connect it before it immediately turns off again.