[costy2000b]

hy everybody.I,m new from here, and I need a help from you.Recent I am building one multirotors Diatone  FPV 250 V4 Ghost Edition,cc3d open pilot flight controller,esc afro simonk firmware 12A and e-max motors MT2204-2300Kv and proppelers from a drone jjrc x1.I executed all setting we have youi need,but when try to fly ussing throttle stik pushing per upper pozition in that moments,acceleration increase much more and vehicle turn instantly with head to down.verry bizar.I ned you help to correct this malfunction that is possible.thousand thanks for all

[TheOtherCliff]

It is critical that you have all this list correct or you will have this problem.  There are ways to configure it differently, but this is the default and if you do anything differently, you must tell the configuration the things you have changed:
- FC mounted upright and with arrow pointing forward.  That usually puts ESC connectors on the right side.
- Each ESC plugged into the correct numbered ESC connector on the FC.
- Each ESC to motor connection done correctly so that the motor spins in the correct direction
- The correct type of prop (CW=R or CCW) on each motor.

[costy2000b]

oh. I forgot to say.i used libre pilot software and transmitter is Radiolinck 6Ch with receptor.setting was make corectly in every section. but  i need much more about setting throttle, yaw,roll,pitch and what value it s necssary .for my quad.thanks             

[TheOtherCliff]

Did you check everything in the list I gave?  Flip on takeoff is a common problem and those are some causes.

Default values are almost always good enough to fly.  A test you can try is to put on a coat and glove for protection and carefully "hand fly" it at low throttle.  It will try very hard to either make itself perfectly level upright or it will twist like a devil trying to be upside down.  I very much recommend that you use a lipo with less cells than normal, if it uses a 3s lipo for flight, use a 2s lipo (or a 3s with a dead cell) for this test.

Also, it is not good to take off from a slope and as soon as motors start to spin you should smoothly add power and immediately take off.  Starting from a slope or waiting while motors wind up faster by themselves causes a flip on takeoff.

[costy2000b]

thanks for help.tray a new verification now i used 2s lipo and again wizard vehicule,change giro setting to 80 percent and i change propellers with performance tipe most eficiently(see foto attachments) and rezultation is verry good.my quad it s more controlable when increase  throtle, quad  begining to fly, no destabilization at full throttle.it not so simple with quadcopters  vehicle.thank you