servos don´t move

Hello from Mexico.

I am using a mini 12 but when I connect a servo to channel 0 to perform test movements, the servo does nothing when I move the slider bar, could you help me? . The master controller I have is since 2016, I am using w10 and the servos I use are MG996R, I tested with other servos and different models on a different channel and there is no movement in the servos, the LEDs that light up when I connect the controller are green and yellow, I already connected a power supply for the servos but still there is no movement in the servos. I would greatly appreciate if you would support me. I attach a photo of evidence where my laptop recognizes the pololu.

Hello.

Could you post some pictures of your setup that show all of your connections, including some pictures of the underside of the Maestro board?

Brandon