Omnibus F4 Pro Flight Controller V3 failure

multirotor

#1

Dear,

I can’t connect my board through USB cabel (there is a solid green light, but nothing happened). Before that I tried to connect leds to the board and I think made a short circuit (mixed the cabels). I tried to measure the LDO on the board (5v to 3,3V) and they are OK. Is there something else that I can do?


#2

Did you enabled DFU mode to flash the Fc with zadig ?


#3

Before that, It works, so I think it something wrong with the board and I have to change some resistor or something?


#4

So it worked at some point?


#5

Yes it worked. Maybe I short circuit the board?


#6

Is it possible that you flashed a wrong firmware ? :thinking:


#7

No I think it is not possible, I can try it to flash again?!, but before that it works, than I tried to connect leds and than this happened…


#8

arh…

Many you shorted something when connecting your LEDS and you have damaged one of the regulators.


#9

Ok thank you, can you suggest me some good and cheap board (like this) Betaflight…thank you for your help


#10

I can recommend the Omnibus F4 v6:
https://www.unmannedtechshop.co.uk/omnibus-f4-v6-flight-controller/


#11

Yeah as @Luca suggested the omnibus F4 is probably the best cheap FC so it will probably be best to just get a new one.

But for your old one, when you connect via USB does the MCU get hot? If it does then it definitely has a problem and will need to be replaced