Good evening, I purchased the Phantom 2 to September with Gimball and I always used with satisfaction.
Since I updated the Phantom with version 3:08 the problems started:
- Tilt gimball system no longer linearly
- I can not turn on the motors
- The radio DJ6 no longer has the red LED but yellow / green
- when I move the transmitter sticks moves gimball

what can i do.

The hardware data are  :
Main Controller  Loader 29.0.21   Firmware 3.08
GPS     Firmware 6.0.1.4
Receiver-Phantom 2   Loadera 15.0.0.6       Firmware 1.0.0.0
P330CB       loader  26.0.0.0      firmware  1.0.2.8
Battery     Loader 1.5.0.0         firmware   2.6.0.0
H3-3D-IMU     loader   0.0.0.8      firmware   1.0.0.10

DJ6       Loader 12.0.0.2      Firmware  1.0.1.24

All you can do is make sure you are using the latest versions on the RC and PT2 assistants, by downloading them again from DJI.
Then update the transmitter, then the Phantom and post a screenshot of the assistant if you are still having trouble.

Re bind your RC to the phantom. I had this exact problem including the yellow/green light on the RC. Rebinding it is dead easy and fixed all those issues.  Be aware that the binding light on the underside of the phantom is also the button.  Then recalibrate as john suggests- all will be well again- Cheers!
Rod

johnwarr@live.c Posted at 2014-12-1 06:11
All you can do is make sure you are using the latest versions on the RC and PT2 assistants, by downl ...

Yes, Use the latest software(RC assistant software and Phantom assistant software) to upgrade both the firmware and calibrate the phantom and RC

I am having similar issues with the gimbal turning with the control sticks and wrong combination of motors when I try to elevate.  Only 2 speed up, and if I try to lower the other two speed up.
Have you found any fixes?

Even after running calibration on the remote?