Hello and good evening,

recently i bought a used Phantom 3 Standard drone, everything was fine for the first few flights had no problems at all, but one day while flying the drone started spinning around and flying up and down, after 1 minute it started the RTH and landed. Searching in Google i think i went through a high magnetic field, in fact they app , while this happened, was showing constant ' Compass Error'.
After that episode i'm not able to fly more than 20m height and 30m distance. I tried several fixes like FW Update, Remote reset, Remote Re-link with the AC, Recalibration on the compass, Recalibration of the IMU, none of them has fixed the problem.
Today i upgraded the 2 'Side Antennas' of the remote, still same problem...
Now my question is, should i replace the Compass and give it a try ?
Or should replace Wifi Receiver in the AC ?

I'm sorry if i posted in General, didn't really knew wich category would fit.

Hi!
You might be better off posting your question in the 'products' section of this forum.
That is way more active.
Just create a new thread here : https://forum.dji.com/forum-129-1.html and select the right category / subcategory.

Hello there YamiP3. I am sorry for the trouble this has caused and thank you for reaching out. Can you please fly your DJI Phantom 3 Standard to a different location with less interference to see if the issue will still persist and may we know what is the model of the mobile device you are using please? The said DJI drone might have picked up magnetic interference on the ground, and you took off from close to a buildings with rebar concrete metal objects on it. In addition, please make sure that the antennas are pointed toward the aircraft for optimal transmission. Thank you.