Phantom3 se to phanvic

[dav2a]

by wanting to change chassis and after having followed several tutorial my drone does not launch more I put you the link YouTube of my problem

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[dav2a]

Nobody can help me

 

[dav2a]

????????

 

[D.C.]

I had a similar problem after reinstalling the firmware
they also jerked the engines and the dron did not respond.
This helped:

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But first I would really check all the wires,
in particular the central board battery supply.

If you break it, please write how satisfied are you with the modification ...
I'm not much besides compactness :-(