There was something backwards about dual ail on the 6i. I forget exactly and I sold mine already. But it's something like the manual is telling you the channels for right and left in reverse.
The flashing and beeping must be your in heli mode and the flight mode switch most be in high or something. Try the flight mode switch. I went through the same panic once.
Good luck! Sorry I can't be more specific, but I think it's the right path.