I have a red "MC Interference" indicator in my DJI FPV Goggles when trying to fly.  
Anyone know what this is and how to get rid of it?

I believe that's "Magnetic Compass". You might need to calibrate the compass if you see it all the time and not just when the drone is next to big metal objects.

Hello there Plasmo. I am sorry for the trouble this has caused and thank you for reaching out. Kindly please try to calibrate your DJI FPV and try to fly the said DJI drone to a different location for us to be able to isolate the said issue. Just a reminder to please be mindful of the location where steel structures and concrete slabs are located when flying your DJI Drone. These structures can caused signal interference when flying your DJI drone and could lead to an unwanted incident. Thank you and fly safe always.

If you are using the Motion Controller it is the compass in the Motion Controller is being effected by a large metal object. I sometimes fly from a field that has a huge water pipeline buried in it I can't use the motion controller near it. I think the full message is 'MC Interference at Location'.

I get this MC Interference at Location pretty much every time I use the motion controller.

Buzzyone Posted at 3-31 00:38
If you are using the Motion Controller it is the compass in the Motion Controller is being effected by a large metal object. I sometimes fly from a field that has a huge water pipeline buried in it I can't use the motion controller near it. I think the full message is 'MC Interference at Location'.

Yes, I am using the Motion Controller.  
So I do NOT need to recalibrate my motion controller, right?  thanks.  I'll try other locations to see if this occurs.

does the mobile phone interfere with the motion controller?

I have the exact same issue with brand new controller. I am not sure what it is

Side note; My max range is greatly reduced as well which maybe a side effect to the MC Interference

Anyone else notice that their range is greatly decreased??

I had decrease in range until I forced 2.4ghz @20mhz
This produces a consistent 100mw transmission strength.
As opposed to 25mw in 5g

Any issues I had with range was resolved.
I am Interested in the FCC hack although I don’t want to risk voiding warranty.

Update:

Has anyone been able to manually calibrate the Motion Controller?
When I try to do the 360 degree rotations on the Motion Controller, it finishes with an ERROR.

I am wondering if my Motion Controller is a lemon?  It appears to fly and control the FPV ok, but the "MC Interference Error" continues to pop up and go away intermittently.

Last week I got this message also.
I didn’t see it in the Goggles.
I was looking back a log and just before my fpv went into the water, this message appeared in the left upper corner.
At the moment DJI.is not giving me a good time.
I have insurance on my drone.
Insurance also includes damage with water.
Now they are trying to find out where the fault is.
I think it doesn’t matter because I have insurance.
DJI thinks otherwise.
They want the drone to make a good judgement.
Come on, it’s in the lake.

Don’t sell insurance that covers everything amd than when I need it trying to get  out under it.  
These are tricks for small players.
It doesn’t make it better for JDI doing what they ar doing now.
Such a missed chance being customer friendly.

It now this message appears in the log video, it makes me feel a little bit better.

H have the same mc sign all the time on mine, brand new today, ?

Fanticflyer Posted at 8-31 06:17
H have the same mc sign all the time on mine, brand new today, ?

Hello … I also get the MC interference signal on my Avata, I've only been trying to fly for 3 days and I can't start.  someone help me thanks

djiuser_qmGmdYPTXnOe Posted at 2021-8-9 08:24
Last week I got this message also.
I didn’t see it in the Goggles.
I was looking back a log and just before my fpv went into the water, this message appeared in the left upper corner.

I have same MC interference, with my Avata. Now I ordered the normal controller and hope it fixes the MC problem. Also I think motion controller stinks.

But I crashed my mini2 in the lake as well. And DJI digged in to it and concluded it was my mistake. However I had it replaced anyway by djicare. for a small fee. I was very happy with that and now I bought 2 years dji care for my Avata.

I have the dji avata brand new
And I get the Mc error all the time

djiuser_dv523cIf3UAc Posted at 2021-3-31 04:59
I get this MC Interference at Location pretty much every time I use the motion controller.

Thanks for this... makes sense. I got the error for the first time today (only my 2nd time flying the Avata and Motion Controller) and I was leaning against some railguards plus 300-400ft in front of me is the railway station so loads of metal.

I never had this problem with the original mc but get it all the time now with the mc2

Rapidlaser Posted at 4-1 15:35
I never had this problem with the original mc but get it all the time now with the mc2

can you please tell us how do you like the mc2 compared to mc1?
that little joystick dont feel too stiff?

nightfly Posted at 4-1 16:49
can you please tell us how do you like the mc2 compared to mc1?
that little joystick dont feel too stiff?

Same here with the new mc2 !

Yeah I flew multiple times with the mc1 with out that error. But the first and only flight I did with the mc2 at the same location I got that error many times!

djiuser_S47aDWG1io56 Posted at 5-9 13:35
Same here with the new mc2 !

And me too. I upgraded to mc2 & its worse!! Range shocking too.

I found out that my Motion controller interference was caused by my pistol in my waistband so I had to remove it.

I have connected everything that should be this is my second avata i had to send back the first one… no matter what i do i cannot get the motors to turn on and i keep seeing the mc interference message… I have owned a avata for 3 months its my second one and i still haven’t gotten any of them in flight im close to giving up