hello !!

Are you using the ACT ?? I never use that because it override the pilot input on TX and do wathever the bird want to do.

I have almost same issue as you.. my first phantom after 3rd flight I was doing a preflight test and suddenly the elevators went crazy and start moving very quickle in smoke start to coming out.. I send it back for warranty and resive a new fuselage with electronics. I few today my 2nd phantom. everithing ok but is glitchin a little. noyhing to worried I trim a little and the glitching went off.

I love this little phantom is so fast for so little bird that I just love it...