At one or two flight i noticed that my Sparks Status LED Showed Critcal Error (RED LED) and IMU Error (BLinking Red LED) for a few seconds. That was reconstructible!
I immidiatly brought down the AC.
Afterwards i checked the Logs, no errors, the App also showed no Errors.
I sended the logs to DJI, they  also said no Errors, it could have been interferences because of the environment (i flew near a Magnetic Resonace Scientific Facility)
So errors could be possible, but why arent them in the logs? Why didnt the App warn me?
Anyone else had these Issues?

I could upload the logfile, but, as said there wont be any errors
Edit:
Anyways, here is the Logfile
http://phantomhelp.com/logviewer/7O3R4HBD20XH27W4OWKV/
http://phantomhelp.com/logviewer/I1ESEUMEDC8IDJ75Y9VX/

Hi, thanks for reaching DJI Forum. We do appreciate taking time bringing this query to us. If you are flying near a facility that has strong magnetic interference it should give you an error message on the app. Have you tried to uninstall and reinstall the app on your mobile device? Also, I'd like to know the brand or make of your mobile phone/ tablet where you downloaded the app. We're here to help, Thank you.

DJI Gamora Posted at 2018-8-11 03:46
Hi, thanks for reaching DJI Forum. We do appreciate taking time bringing this query to us. If you are flying near a facility that has strong magnetic interference it should give you an error message on the app. Have you tried to uninstall and reinstall the app on your mobile device? Also, I'd like to know the brand or make of your mobile phone/ tablet where you downloaded the app. We're here to help, Thank you.

I already uninstalled and reinstalled it due to not having low battery acoutic warnings.
I still dont get these warning by the way.
I use a IPhone 6s. No difference between connecting with Wifi or OTG. I usually fly with the Phone Connected via Wifi to the RC

Deftig Posted at 2018-8-11 03:51
I already uninstalled and reinstalled it due to not having low battery acoutic warnings.
I still dont get these warning by the way.
I use a IPhone 6s. No difference between connecting with Wifi or OTG. I usually fly with the Phone Connected via Wifi to the RC

Hi, do you have an Android phone that you may use and download the app? OTG is only optimized to an Android phone recently thru an update. I'd like to know also when was the last update you performed on your aircraft and the remote?

I switched from Android to ios. I used the newest Firmwares (these from end of july) on all Devices. Go4 is. 4.2.24 on ios.
As said, i usually use WIFI connection, i only used OTG with Android before (Acoustic warnings were hearable there).

Yes. I am having the same issue with solid red status LED's for several seconds after any command is issued. No warnings on the GO4 app nor in the flight logs.
I have opened a service ticket to return the drone to DJI so they can figure out why. I am currently awaiting a case # and shipping information.
I am using iPhone 7 Plus. Go4 4.2.24 AC 01.00.1000 RC 01.00.0400 (won't update that until DJI fixes the WiFi problem if the update fails. Don't want a brick!)