TinyHawk II FC wont turn on. Does connect and has power

[mdethmers]

Hey all, I was setting up my TinyHawk 2 FC, which I had just received new, after which it decided to turn off and never go on again.

I was soldering the motor wires and installing a flysky a8s receiver to the RX2 port, and was busy setting up the controls of the transmitter after;

1. The quad started beeping continuously
2. I unplugged the battery
3. I replugged the battery
4. There are NO status lights on the FC anymore (no blue, no red, no green).

The motors give 3 beeps. I still get a video signal. The received gets power. I can still connect to Betaflight (and even flash new firmware), but I see a gyro not found and RX not found error, and the FC seems to be not functioning anymore. Has anyone experienced this before? There was no short afaik, as I was already getting up the last elements of the transmitter.

Note; I did have the board conformal coated. This is the 2nd conformal coated board that died on me. Does anyone know if this can be the cause?

 

[Dan]

I would try re-flashing the firmware. I've had that recover an FC. Just the 1st 3 beeps without the last 2 usually means the ESC is working but the FC isn't seeing it.

Conformal coating I would think has to reduce the heat dissipation somewhat at least. The little AIO boards could be sensitive to that I suppose. How is an indoor tiny whoop likely to get wet anyway? I don't fly my TinyHawk outdoors.

 

[scubasteve931]

reflashing does not work, i have the same issue, i accidently wired the camera wrong and i get no power to the fc but it still connects to beta flight. everytime i try reflashing, i get the same error message regardless of what i have tried, "no response from bootloader programming failed" of course when i google that message it keeps telling me to check the cable or check my drivers which would be useful information if i was getting power to my fc.

 

[Dan]

On USB the FC needs no voltage regulator but on battery the FC is powered by the 5v regulator on the board. If the ESCs work & the FC doesn't that would be the most likely culprit. You mentioned you accidently wired the camera wrong. Might have tanked the 5v regulator then. If so, the board is landfill.