I have the mcpx helicopter. For some reason when the throttle reaches 95-100%, everything just stops like I hit throttle hold. Here is a little background information that might be relevant:

I recently got the Mcpx v2 and have broken some blades and stuff. The other day, I was taking the battery out but I grabbed the connecter by the wires because it was hard to disconnect and one of them broke off, so I had to solder it back on. Maybe something went wrong?

Another thing that might be useful to know is that there is a little red wire on the back of my 3n1 board and it doesn't attach to anything... Did I accidentally pull it out of something when removing the 3n1 board? Maybe something else went wrong when removing it?

I don't know much about how everything works, so it might be a simple problem. Although, nobody else seems to have had this problem before...

All help would be greatly appreciated!

I realized that I had my Dx6i on a different model... But then after I fixed it I couldn't take off for some reason. When the throttle got high enough (still on the ground), it drove itself into the ground sideways... I didn't have trim issues and even when I tried to compensate with the controls, it did the same thing... Then I proceeded to rip the end off the battery connecter (on accident of course) ...

Iv had to send two of my 3in1 controllers back i think they dont like being knocked or messed with.

I don't know if you figured out you problem out yet... I had the same problem...
Once I got above the 75% throttle mark, mine died out as well. Here is a link for the youtube channel....
http://www.youtube.com/watch?v=PX9UgHfg_NM


you have to 0 set the pitch... the blades would not have enough speed, once the collective hits the motor struggles and esc cuts power to minimize damage.
hope that helps you!