this is kind of time consumeing here but if you have atleast one servo working can you unplug it and try the other servo`s in that same slot?
im trying to think here.
check the swashtype in the setting`s make sure its on 120 degrees
do you have the binding plug for the reciever?
put binding plug in the battery port/channel in the reciever.its usually port (1)
plug in heli, the reciever and gyro lights will blink rapidly.
then while holding up on the trainer switch on the dx6i turn the radio on,the word bind will blink on the screen of the radio. continue holding the trainner switch while moveing the sticks in all direction`s
after the radio and reciever binds the light on the reciever will go steady
now unplug heli take binding plug out of the reciever and turn off radio
turn radio back on then plug in heli

oh make sure you have the proper aircraft selected in the radio.
you should have the blade 400 and one airplane preprogramed already.
have ypu created a model for your heli?