Manker E14II UI problem

The light would only turn on in high,turbo and strobe. All other the led would not lid up. Please help if it has hidden mode.

Not as far as I can see.

Could the light be not working right?

From the Manker website:

1. When the flashlight is off, one click, access to moonlight mode (left part of the figure), one click to circle: moonlight - low - medium - high. Long press for turning off.

2. When the flashlight is off, long press the button to access to the mode your last use as in left part of the figure (Memory function), one click for circle. Long press for off.
3. When the flashlight is off, double click access to Turbo, one click for circle,. Long press for off.

Engineering mode (Chose output level for moonlight mode):
Quick click for 4 times from any mode to get access to engineering mode. Once click to check different levels and long press to make your final choice.