Phantom 2 doesn't start

[sepjosa]

Phantom 2 doesn't start. After calibration back light flash red..

It happen after firmware update.
Gimbal/goPro is not in horizontal position
Can you help ?

 

[TexasHighDef]

Phantom 2 doesn't start. After calibration back light flash red..

It happen after firmware update.
Gimbal/goPro is not in horizontal position
Can you help ?

I had the same thing happen before and I got it working again by recalibrating everything one more time.