Since I upgraded my Phantom 3 Professional to Firmware v1.3.20 I have noticed I now have a tilted horizon.
Going to try a IMU and gimbal calibration before my next flights. I hope it fixes it.

1.3.20 does not create the tilted horizon ( if anything it reduced it for me ). Try an IMU and gimbal calibration ( should do after a firmware anyway really )

tilted horizon comes and goes on mine. i just use the "adjust gimbal roll" in the settings and adjust manually

Okay heres the way I sorted mine.
I tried the IMU reset having had the drone in the fridge for an hour or so, also did the gimbal calibration straight after and on my next flight it was no better !!!

So - I flew the bird, faced it head on into the wind so there was no 'side tilting' etc and did a gimbal reset while it was in the air and the bird was level while facing straight into the wind.

That did it, now I have a level horizon all the time - great !!

Try it.

Buzz

buzzcbr@gmail.c Posted at 2015-8-27 00:56
Okay heres the way I sorted mine.
I tried the IMU reset having had the drone in the fridge for an ho ...

i will give that a try next time i see tilted horizon, thanks

young.selina@ro Posted at 2015-8-27 03:59
I'm sure it's been said many times before - but make sure you do the IMU calibration on a perfectl ...

im one of the ones who say that

Couldn't fix mine.. I just adjust gimbal roll. Hopefully dji can develop a fix

I think I read in a different thread that changing it from "FPV" to "Follow" can help issues with the tilted horizon...I haven't had that issue yet.  I imagine it's going to have some tilt etc. just from flying it, no?

IMU cal and gimbal cal on a "perfectly flat and level" surface.... Horizon issue seems to come and go for me.

I am not blaming 1.3.20.
I never had it the last two FW versions, just noticed it on my last flight(second flight since upgrade), and yes I did calibrate after upgrading the firmware.
Not sure why it is doing that now.

My P3p is on its way back to the dealer.   I have tried everything in the book yet my horizon still refuses to sit level.   I consider this a warranty fault.  

mail@jselliott. Posted at 2015-8-28 15:27
My P3p is on its way back to the dealer.   I have tried everything in the book yet my horizon still  ...

Did they fix it?

buzzcbr@gmail.c Posted at 2015-8-26 11:56
Okay heres the way I sorted mine.
I tried the IMU reset having had the drone in the fridge for an ho ...

When you say "gimbal reset", do you mean gimbal calibration?

wheeliesteve Posted at 2016-4-8 15:46
Did they fix it?

No , they gave me a new Phantom :-)