Hello, the Hue app should have the latest software update. To set it up, press and hold the button with a dot or the first button of the Tap dail for at least 3 seconds. If this does not work, press and hold for 10 seconds. When the LED flashes between the keys, the search can be started under Accessories in the app. Be sure to wait at least 30 seconds, even if the tap dail has been found. After adding the tap dail, do not make any changes to the assignment for the time being. This is because a software update will certainly be necessary at first. Here is an example video:
https://youtu.be/uX0nyVN3vj...