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New firmware - IMU calibration and other issues

Joined
Jul 30, 2018
Messages
7
Likes
0
Age
48
#1
1. Just updated to newest firmware. Afterwards I have had several issues - drift during flight amongst them. I am calibrating the IMU according to DJI´s video instructions - it remains stuck on step 2 - any solutions ? I have watched the recommended video, done precisely as it recommends, but no help in that.
2. I got a message that compass needed calibrating. I tried to do so but got repeated messages that there was electromagnetic interference. Went outside - ensured that there were no metal objects surrounding me - chose a spot where the em signal was ok - the calibration got stuck - had to shut down to reload the hand piece battery.
3. My gimbal refuses to accept the filters I use - was not a problem with the earlier version
4. Several breakdowns of contact when flying in good conditions with the drone in sight.

Wish you would wait with release of new versions until all such problems were solved.

I need help urgently - have projects waiting and finally the right weather conditions for them
 

Exphantomflyer

Well-Known Member
Joined
Oct 14, 2017
Messages
400
Likes
90
Age
48
Location
Manchester UK
#2
1. Just updated to newest firmware. Afterwards I have had several issues - drift during flight amongst them. I am calibrating the IMU according to DJI´s video instructions - it remains stuck on step 2 - any solutions ? I have watched the recommended video, done precisely as it recommends, but no help in that.
2. I got a message that compass needed calibrating. I tried to do so but got repeated messages that there was electromagnetic interference. Went outside - ensured that there were no metal objects surrounding me - chose a spot where the em signal was ok - the calibration got stuck - had to shut down to reload the hand piece battery.
3. My gimbal refuses to accept the filters I use - was not a problem with the earlier version
4. Several breakdowns of contact when flying in good conditions with the drone in sight.

Wish you would wait with release of new versions until all such problems were solved.

I need help urgently - have projects waiting and finally the right weather conditions for them
Downgrade the Firmware, search Digdat0 on YouTube
 
Likes: Flycaster

Flycaster

Well-Known Member
Joined
Mar 17, 2017
Messages
583
Likes
255
Location
Moraga, CA
#3
1. Just updated to newest firmware. Afterwards I have had several issues - drift during flight amongst them. I am calibrating the IMU according to DJI´s video instructions - it remains stuck on step 2 - any solutions ? I have watched the recommended video, done precisely as it recommends, but no help in that.
2. I got a message that compass needed calibrating. I tried to do so but got repeated messages that there was electromagnetic interference. Went outside - ensured that there were no metal objects surrounding me - chose a spot where the em signal was ok - the calibration got stuck - had to shut down to reload the hand piece battery.
3. My gimbal refuses to accept the filters I use - was not a problem with the earlier version
4. Several breakdowns of contact when flying in good conditions with the drone in sight.

Wish you would wait with release of new versions until all such problems were solved.

I need help urgently - have projects waiting and finally the right weather conditions for them
You did what?
Opps, downgrade as fast as you can Grasshopper.......
Start your quest here:
digdat0 - YouTube
 
Joined
Jul 30, 2018
Messages
7
Likes
0
Age
48
#4
Thanks for the advice. Deleting and reinstalling The DJI Go 4 app on my mobile solved all problems.
 

BradBowers

Active Member
Joined
Jan 27, 2018
Messages
28
Likes
9
Age
58
#5
I did everything as you suggested. However, first I:


Deleted the DJI Assistant 2 from my laptop and reinstalled the latest version (V1.2.4) from DJI’s site. Restart laptop, run cleanup, security, shut down & restart laptop. Login, exit.


I charged aircraft battery and RC controller & Iphone – all 100%.


I then, with aircraft/RC power off, connected aircraft (only) to laptop with micro usb cable; start DJI Assistant 2/login; power on aircraft.

I then ran Firmware Update, Reset Factory Default – 100% complete; I then ran Firmware Update – actually “Refresh” as aircraft was “Current” at V1.04-0400 – 100% complete. Turn off aircraft & disconnect.


I then did same with RC (only) – however, no option to Rest Factory Default so I went straight to Refresh “Current” firmware – 100% complete. Turned off RC/disconnected.


I then hooked up Iphone 6s (with latest Go 4 App installed, 100% power) to RC – both power off.


I then power-on aircraft, power-on RC, power-on Iphone/launch Go 4 APP. Immediately I get on the RC screen: Check APP – System Warning; Recalibrate IMU Required; Compass Redundancy Switch.


I then tried to re-calibrate the IMU and get the IMU calibration failure notice described below on Iphone. I then recalibrated the compass and re-tried the IMU – continue getting the same failure notice described below.


Now what?


Thanks,

Brad
 

ac0j

Well-Known Member
Joined
Sep 17, 2017
Messages
2,678
Likes
2,017
Age
55
#6
Has it been crashed or dropped?

Als make sure you are holding the aircraft EXACTLY as pictured on the screen during calibrations.
 

BradBowers

Active Member
Joined
Jan 27, 2018
Messages
28
Likes
9
Age
58
#7
No, never.

Also, I'm not holding/moving it during IMU calibration attempts - sitting at rest - as shown in the app picture - on dry, level surface - both inside (on wood table) and outside (lawn). My attempts never get past the 1st stage before failure notice.
 

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