Since about 4 months ago, DD APP is closing suddenly without any reason during my flights, Tips?
Before start a mission I close all apps, open DD and start as always…
P4+ Ipad mini.
Almost closing 3 times during a 2 batteries flight.
I posted this on the facebook forum. Hope this helps you out It works for our fleet.
"Understanding how mobile devices (especially iOS devices like iPhones & iPads)work, and why it is important to know, when being used to operate a commercial drone flight.
I’ve been meaning to post this for awhile now, but haven’t had the time. With the recent DJI SDK update and subsequent releases of the DroneDeploy App it has been apparent that there are some CPU/RAM related issues that people are running into mid-flight causing the App to crash.
The device you use should be a newer device with at least 2GB of RAM. It should free of non drone related Apps, should not have any mail clients, Facebook, Netflix etc… on it. The available memory should be at a minimum 40% used of the total space. Remember, if you are a commercial Part 107 operator it is in your best interest to have a dedicated device that you use for your drone Apps.
Closing an App in iOS does not free up the RAM. There is still a large amount hanging around and is usually the reason why the App is still not functional after closing. Even if you Restart the device it does not free all of the RAM that the App & OS is actively using. Only If you turned it off and left it off for 20-30 minutes it would release the memory on startup.
The only way to release the RAM while the device is running is to do the following. (I find it best to close all open apps before performing the following) Hold the power button down until the slider to shut down space appears. No hold the home button for five seconds the screen will flash and go to the home screen. The device has now released its ram.
I hope this helps many of you who were having issues."
This is useful information but really not feasible for those of us who our tablets for one or two other applications. This is the first time I have heard of an application requiring no email, no non-drone apps etc. That would indicate a poorly written app IMO…
I have posted often before on this issue with my ipad Mini 2 + Inspire Pro 1, and others have the same problem too. I bought an ipad Mini 4. Only one flight so far, but first time ever that DD didn’t crash app in mid flight. Will continue to keep eye on posts.
If you want to fly successful missions with minimal to no issues with any App. It is in your best interest to follow the recommendations that I posted. If you fly commercially, it is even more important. The amount of data that is being processed and logged is not a free tax on your tablet/phone. It takes a lot of system resources to handle that flow of data. Even more so, since the DJI mandatory patch back in June, which basically, IMO, necessitated the need to up the requirements for supported devices.
The App does not REQUIRE you to not have any other apps installed. If you want to have the best experience possible, and maintain a level of safety that IS required under your responsibilities under the Part 107 (Your equipment safety checks you need to do, also includes that iPad Mini 2) Please use dedicated devices! I can guarantee you that in the not so distant future, your drone insurance company, the FAA, etc. will be regulating more than they currently are. Those who practice the due diligence now will be around in the future.
We use(d) iPad mini 4’s for our entire fleet (just purchased in April). We now are replacing all of them (32 units) with iPad PRO’s. More Functionality from DJI and DroneDeploy = more system resources are needed. Also we plan to replace the iPad Drone Controller every year to 18 months of use.
*Of course you can have a few Necessary Apps installed. But each App has storage requirements on the OS, as well as Caching, and memory constraints. If you know how to properly close Apps, and clear memory it will not be a problem. But I don’t think a “used on a daily basis” iPad Mini 2 has the horsepower and capacity to be a dedicated Drone Controller. It will not be able to run multiple missions consecutively over a period of 6 hours. Even if it was brand new out of the box, it would struggle. The recommendations were provided to assist users who want to eliminate any possible mishaps.
Mainly from understanding both how iOS and android work under the hood. And from knowing the DJI SDK and what it is doing in those OS’s. My day job is working on as a solution engineer on a software development team that creates App’s/mapping applications.