https://www.youtube.com/watch?v=MNbkxZhX5fM

hantom 3 Professional


Had a crash. Replaced the body. Pulled compass connector off the board by accident. Had it resoldered (and probed to make sure it was connected).
Drone won't calibrate. Sensor data for compass show zeros including MOD. IMU calibration normal.

Ive also noticed that the Controller Link and Video Link have full bars but the RADIO CHANNEL QUALITY is poor. Ive changed channels and most seems to be UNSTABLE (red bars)


Everything was working BEFORE I pulled the shell apart. GPS currently works.



So.

1.  the compass/wires was damaged
a. replace compass

2. the connector damaged the traces on the board
a. new connector was installed and probed - should be ok

3. why radio channel quality - POOR but I have full bars on remote and video link? Could something more be damaged on the main board?
a. @00:30 in the video I posted - the screen gets garbled for a second... i have the video link set to 4mbps and remote is 2 feet away during the test


Ideas? Did I damage my main board perhaps?


Thanks guys

Jason

It's hard to ensure the performance after the crash. If you need any further assistance, I'd suggest to start a case and send it in for inspection: https://www.dji.com/support

I saw your video, one thing that's odd is I see the top shell of quad just sitting by itself. On the underside is the GPS module I believe you need it to be place at near it's original position.
You don't have to clip it on just position it properly give it a go.  Make one step at a time, don't try to fix a whole bunch of things, this way you can see if the fixed worked. Let as know

CoollyMcAwesome Posted at 2018-3-14 21:06
I saw your video, one thing that's odd is I see the top shell of quad just sitting by itself. On the underside is the GPS module I believe you need it to be place at near it's original position.
You don't have to clip it on just position it properly give it a go.  Make one step at a time, don't try to fix a whole bunch of things, this way you can see if the fixed worked. Let as know

Sorry, yes in the video I have it off. But In 10 compass calibrations Ive had it on. It makes no difference. And It routinely connects to 10-15 satellites with it connected.

Thought about replacing the entire board?

ALABAMA Posted at 2018-3-15 06:46
Thought about replacing the entire board?

Yes but at $150 for a used one and $300 Canadian for a board, and the re-soldering of all the motors.. I really wanted to make sure it was pooched first.