Ymfc quadcopter project

Hello everyone

So i have problem with my ymfc-3d quadcopter

Itest lal my esc and motors they work fine but in the esc celebrate file i did everything he shows in the video plug battery throttle full and wait then to 0

When i try only 3 motors work the 4 th motor its not working only if i plug the arduino usb to the pc it works

Please help me

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Seems like you have a voltage distribution problem. You should double check the wiring, as per Joop`s instructions in the wiring diagram.

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