Need help before I trash my Dji, tarot gimbal and tx!!!

[Dereyes Films]

I have a serious issue with the tilt pitch 7th channel!!! In naza assistant I have my xi going crazy without me touching anything!! I have a Tarot 2d and be trying to get the **** tilt pitch to work with transmitter, I've done everything correct and had it working for less than a day before it started acting up. Also now the gimbal stops working after a few mins of flight time. WTH am I doing wrong??? Anyone ever had issues like mine and s solution??? Please someone HELP!!