After some 50 flights more or less (when heli was already set up to my taste) the unit spirit stopped working.
After a flight I has connected a fully charged battery and I have noticed the servos didn’t start running and the led didn’t turn on.

After I checked that everything was in place and ok I have disconnect the unit from the helicopter, I have plugged it in the PC and I have turn it on through the AUX…but the unit does not switch on nor seems to be connected to PC.

That is very strange.

Could you disconnect everything from the unit and plug only power to the unit (from BEC).
It could be a problem with BEC so all electronics may not work.

Do you see that LED on the receiver is ON?

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Spirit System developer

[youtube]https://www.youtube.com/watch?v=lywylow16cc[/youtube]

Video is set to private...

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Oxy 2 ♦ X-Vert ♦ Warp 360 ♦ Blade 450X ♦ Blade 450X Nightflyer ♦ Goblin 500 (RIP) ♦ 2 X mCPX v2 ♦ night fly mQX ♦ LadyMQX ♦ nano QX ♦ nano QX FPV ♦ Inductrix ♦ DX8 G1

Now it is OK. I'm sorry.

Thank you for the video.

Can you check if the LED blinks for a very short time during battery connection?
Can you also examine if there is really some output from the BEC? For example by connecting a receiver instead of unit - you should see some LED there.

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Spirit System developer

I tested with receiver, 5 V battery tested with, tested with Esc .......
The LED never lights up.

Thank you for the info.

So receiver is working (LED is ON) while unit does not work, am I right?

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Spirit System developer

Yes, exact.

In this case it will be the best to send the unit to us so we can examine it. Then we can be sure what happened, but it is really very strange.
Of course it will be for free under warranty.

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Spirit System developer