david.p.mann
Second Officer
Flight distance : 18669501 ft
United States
Offline
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I was having exactly the same problem - the new DJI GO app version 2.5.1 was crashing to iPad desktop 10-20 seconds after starting the app. Deleting the app (and all its data) and reinstalling it did not fix this problem. I then followed recommendations from DJI-Ken to uninstall app, power cycle the iPad and reinstall app from the app store. Tried this three times but app crashed every time I attempted to get in to flight records, which were blank, and enter my DJI login and password - the app would crash before I could finish entering my login password. Note - at this point the iPad is not connected to the RC and my P3 Pro is turned off.
Here's what I did to get past FIRST app crash issue. Some of these steps may not be necessary, but I report what worked for me:
1) Uninstall DJI GO app
2) Hard reset the iPad by turning screen on and then holding down the Power button and the home button at the bottom of the iPad screen simultaneously until the screen goes blank and the Apple icon appears. Note: The iPad will take longer than usual to reboot.
3) Reinstall DJI GO app from the appstore
4) Get into DJI GO app and go to Flight Records where you will be asked to input your DJI Login and password. DO THIS QUICKLY. The app crashed the first time, but I was successful the second time.
5) Once I successfully entered my DJI login and password, I was able to sync all my previously saved Flight Records from the DJI server and the app did not crash for 20 minutes while I was reviewing flight records.
6) My educated guess is that the first app crashing problem is related to difficulties with initially connecting to the DJI server.
HOWEVER, as soon as I tried to get into camera mode, there were two new problems - the app came up showing I was attempting to connect to a "Phantom 3 Standard", which was incorrect, and when I tried to select "Phantom 3 Professional" from the drop down menu - the app froze and then crashed to the iPad desktop. Damn! Not again!
OK - Here's what I did to get past this SECOND app crashing problem and get my system fully functional:
1) I updated P3 Pro firmware from v1.5.0030 to the latest v1.6.0040 firmware. I was hoping to avoid this, but gave up and did it thinking this might solve the problem. If you don't want to upgrade your firmware, you might try steps 2-8 FIRST to see if that solves your app crashing problem when trying to enter camera mode. If not, then install the latest firmware on your aircraft and all batteries, as I did, and then try steps 2-8, below, again.
2) You must follow the next 4 steps in EXACTLY the order shown as instructed in the DJI GO app "How to Connect" instructions the FIRST time you attempt to connect to your aircraft:
3) With iPad NOT connected to the Remote Controller, turn ON the Remote Controller.
4) Next, turn ON your aircraft battery and wait for the green status light on the Remote Controller - this indicates the Remote Controller is linked to the aircraft.
5) Only then should you connect the USB lightning cable between the Remote Controller and the aircraft (a P3 Pro in my case).
6) Start the DJI GO app. A few seconds after the "2016 I Will" intro screen pops up the app should come up with a picture of the aircraft that is now connected to the remote controller - in my case, it correctly showed I was connected to my Phantom 3 Pro. Yeah!
7) Enter Camera mode and ensure you can see live video from the aircraft camera.
8) Be sure to check and change as needed the following settings, which may have gotten reset to defaults:
- Units of Measurement (feet or meters) under General Settings
- Return-to-Home Altitude under MC Settings, then Advanced Settings, then Failsafe Mode
- Maximum Flight Altitude (in meters) under MC Settings
NOTE - NO MORE APP CRASHES HAVE OCCURRED SINCE SUCCESSFULLY LINKING TO MY AIRCRAFT THE FIRST TIME.
If you have updated your firmware, I also recommend that you perform an IMU Calibration with a cold aircraft sitting on a perfectly level surface, and then do an Auto Gimbal Calibration.
Finally, I can now connect my iPad to the Remote Controller before powering ON the Remote controller and then the P3 Pro and everything still works fine. I think, for some reason, it is CRITICAL to follow the exact power on/connect sequence shown in the instructions - at least the FIRST time after a new version of DJI GO is installed.
HOPE THIS HELPS OTHERS HAVING APP CRASHING PROBLEMS WITH DJI GO VERSION 2.5.1!
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