I've changed the solo 4th motor pod, but still not working

[Rodinoor]

Hi everyone,

My Solo crashed and fall into the sea but not fully covered with water. It was less than a foot of depth. The 4th motor failed and won't work anymore so I had to buy a new one. After replacement, the new motor still not working and vibrate as the broken once.

The three others are working just fine if I removed the broken once.

Any Ideas?

 

[just_bruce]

I'd say your mainboard or Pixhawk is toasted. Or the power leads on that corner are corroded. Or the signal harness is.

 

[Rodinoor]

got new motherboard, I think the motor itself was broken in the first place.