Need help with tricopter (rcexplorer)

[Ares7]

Houston, we have a problem .....


I build my tricopter with the description of david from rcexplorer.
My tricopter is build and everything seems to be correct BUT :
When i try my first take off, it is impossible to control it, one of the arms have more powre than the others (the front left)

I feel that the gyro don't compense correctly.
If i put the trico incline at 45°, one motor speed up just one second and the trico stay incline with the motor at the same speed
I don't think this is normal.

This is what i do :
- i build the tricopter
- i flash hobbyking F20 A ASC with bs_nfet
- i flash the hobbyking multi rotor board with tricopter firmware 1.6
- i flash my turnigy 9x into er9x
- i calibrate the throttle range on ESC
After flashing the transmitter and the esc, the motors turn in the wrong direction, i just invert 2 wires from the esc to the motor to to switch them to the correct wise. nothing serious but it's weird.

PLEASE HELP ME

 

[colorex]

Could it be that one ESC hasn't flashed correctly? Or maybe your gyro gains are not set correctly?

 

[Ares7]

Could it be that one ESC hasn't flashed correctly? Or maybe your gyro gains are not set correctly?

i will try to reflash all the ESC, i hope i will resolve my problem.

For my gyro gains, they are all at 50 %. I try to change them juste a little (25%-75%) nut nothing change.