Guys there seems to be strange problem with the tx
at sudden point of elevator and aileron stick....there is sudden acceleration of motors and the quad flips over.
anybody know why is it happening or is there any solution 

Check the Expo for the channel 3

Karan, where do you fly in Gurgaon?

flashed a new firmware xcopter v2.9...now everything works fine
gonna fly it now

i am in a college...GITM