I want to add my device to the Marshall Bluetooth app.

I keep pressing the button on the case as instructed, but the blue LED doesn't blink. (Nothing just happens.)

Double-click to turn on the orange light and press the button to turn on the green light.  I can't see the blue light blinking... ioi

The device and my phone are paired, so you can listen to music.

But I want use the Marshall Bluetooth app by adding my device.

How can I add my device via bluetooth mode?