Speedybee f405 WING isn’t supplying power to the servos

I don’t know if this is a ardupilot problem, or a flight controller problem, but my speedybee f405 wing isn’t supplying any power to my servos even when armed. The servo outputs are moving as they should in Mission Planner, but the servos themselves refuse to move. Any help? I’ve tried disabling the BRD SAFETY in parameters, but it hasn’t helped.

How are you powering the board? Servo outputs will require battery power, not just USB.

The board is powered by the full battery through the PDB, and everything else is powered.

Which Servo BEC is selected?
How are your Servos and your ESC connected?
Is the really the powerline or the PWM signal to the servos missing?

Does your ESC have a BEC output and have you connected it? If so, your servo BEC on the FC could be defective.

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Yea, Speedybee warns about that in the manual…

Ugh I really hate that, is there any way to fix it?

Ok I switched out the bottom BEC stack for a new one from another flight controller, but the servos still don’t move. I cute the esc red wire off so I wouldn’t be tempted to plug it in. Any idea on how to fix? I really need help

I also checked to see that the vx and ground pins on all of the outputs were powered, they are

So maybe it is the servo pwm signal

Which voltage you are measuring on the servo rail vx to gnd while all servos are connected?
Maybe a good idea is to provide some .bin Logfiles of your tests