Still waiting to hear back from DJi support regarding this.

Brand new Phantom 4 out of the box, IMU, compass and gimbal all calibrated. Horizontal level looks fine and then its a case of Russian roulette when I have it up in the air.

Will the camera stay level or will it knock off by 1 degree or so mid flight...

On some flights I have had to manually adjust gimbal rate in order to remain level.. this shouldnt have to be the case!

Is this a firmware issue? Anyone else in the same boat?

Check out the video below to see how much off level I'm delaing with!

https://www.youtube.com/watch?v=89V3aNMJivs

I'm about to create a thread about this, but try this...

Have noticed the same issue, I've frequently found my p4 cam  has +1 degree tilted after takeoff. Calibrated the gimbal for dozens of times but doesn't gives any help. Yesterday, I've managed to change the calibration method>>

1.Manually tilted the gimbal +1 degree
2.Perform auto calibrations

Magically, the gimbal works flawlessly after all. just sharing my own experience.

johnchao411@gma Posted at 2016-5-29 07:32
Have noticed the same issue, I've frequently found my p4 cam  has +1 degree tilted after takeoff. Ca ...

Nice tip, will give it a spin......

We are familiar with this issue.Our R&D department is looking for the best solution to provide the best experience for P4 users.