How do you turn on the Nubian Z9 mini breathing Light?

1, we in the Nubian Z9 Mini system desktop "settings" entered after we click on the "Display" settings, as shown in the following figure:

2, and then in the display we click on the "Breath Light" click it to open the entry, the effect is as follows:

3, and then after opening the interface we will see a "charge" and then click on the "Automatic Breathing lamp brightness" option, after the opening, when the charge can see the breathing light, as shown in the following figure:

Where is the breath light of the Nubian Z9 Mini?

The Nubian Z9mini breathing lamp is the following home key position, the menu key is the touch effect of the following