Omnibus F4 Pro Flight Controller V3 Power issue


When I plug with USB cabel, there is a voltage on three LDO (5V in and 3,3V out). There are power lights. When I plug just the 4s battery, there is nothing. What is the problem?Regards

Your 5v BEC could be toast.

What is that exactly on the board?

The Omnibus F4 Pro V3 has a built in BEC
Allowing you to connect your lipo (ie Battery voltage) directly to the FC.

The BEC takes that voltage and steps it down to 5V to power other devices.
The FC, Rx, VTX, Camera

And there is no way to repair it?

Not that I’m aware of.

I think your only option is a new FC

Ok thank you very much.Regards