Compass requires calibration before every takeoff.

[Skipholiday]

I'm not sure what the issue is. With my P3Pro and my P4 I use an Nvidia Shield for the screen with no issues.
Ive used an iPhone6S plus for the display with my Mavic Pro until recently. I purchased a mount to use the shield for the MP also
Big mistake. Compass would never calibrate. I gave up trying after several days of trying different ideas.
Now everytime I fly the MP it has to be calibrated or it will not fly. Could the compass be messed up?

Thanks

 

[LoveJoy]

I'm not sure, do you get any warning messages when you try to calibrate it?

 

[Skipholiday]

I'm not sure, do you get any warning messages when you try to calibrate it?

No warnings and it completes calibration without an issue, I takeoff from the same place most of the time so this is new. But happenes every time if I restart or change the battery.

 

[LoveJoy]

No warnings and it completes calibration without an issue, I takeoff from the same place most of the time so this is new. But happenes every time if I restart or change the battery.

Hmmm I'm not sure. I'll do some digging and see if there's a solution.

 

[Skipholiday]

Hmmm I'm not sure. I'll do some digging and see if there's a solution.

I appreciate it

 

[cmoney1976]

Where are you taking off from, how much metal is around you?

 

[LoveJoy]

Always check the surroundings too. That magnetic interference makes a big difference too. Your controller will tell you whats what if the compass swing (calibration) works, or if there's heavy interference.

 

[Michael Ainsworth]

Suggest you go out to a very clear area, middle of field etc.
Start up your MP and just wait a few minutes for it to lock onto Sats and GPS is firm.
Without taking off pick up MP and whilst turning it in a 360 watch what the Icon in the radar is doing, does it reflect the position of MP.
You will then know if it requires a calibration. Especially if you get a warning to do so.
Also I am a bit confused about you saying it always need to be calibrated but you get no warnings, how do you know it needs calibrating?