I assembled the cube, and the bottom layer is not working, only 3 leds are lighting up,
the problem is I tested all the LEDs on the bottom layer one by one and all of them are
lighting up, even I re-soldered all the jumpers and all the connections to the layer.
Is it possible the layer is broken somehow?
Because the LEDs light up when I tested them.
Should I re-solder all the LEDs?
Do the LEDs light up when you finish, and should they be blue or random color?
Because some of them are different color.
Any help will be nice.
Side A of the Cube:
Side B of the Cube: