I installed the Litchi app onto my Samsung Galaxy 5s (having 6.0.1 Android). My P4pro was up to date firmware, and software as was my Galaxy. I wanted the Litchi app in order to use my Zeiss VR goggles.
In order to make the Litchi app operate I had to uninstall mt DJI GO app. That was annoying in as much as Litchi claimed that a user only needed to select Litchi as the default upon opening the program when connecting to the controller. (That was not correct in my case).
After several sucessful flights I chose to use Litchi's GPS autonomous flight program. (For those not familiar, Litchi provides a screen within a screen view. Both the camera and Google earth satellite view appear in your screen. Switching between them [one view is smaller in the lower right corner] is accomplished by touching the screen).
My flight path was over a forested area, and was one I had previously flown manually, using the Litchi as well as DJI Pro apps. Hence, I knew that I had adequate range for control and signal.
After programming the flight path (basically a rectangle over 200 acres), and setting the altitude, I was ready to set the P4pro free. The Litchi program states on screen that you can take over control at any time.
I set the program to go. The P4pro flew to the first waypoint without issue. I used the controller left toggle to increase altitude without issue. The P4pro turned to fly, and did so, to the next way point. Whilst using the Zeiss VR goggles I noted all was working fine, or so I thought.
The P4pro reached the second waypoint turned smoothly for the third. On this route I began to see altitude issues as the terrain was rising but the P4pro wasn't. I gave left toggle throttle to increase altitude. Nothing! I disconnected the virtual reality gogglez and now was on screen.
I tried to again gain altitude - nothing. I then tried to get the drone to return home. Nothing. My last act was to try to stop the flight program and take manual control. Nothing.
My P4pro crashed into the top of a 90 foot plus Red Oak. Unfortunately, that was the end of the P4pro as its recovery caused it to fall, unpowered, from 80-some feet, to the frozen forest floor. (The case was cracked, camera sheared off, and both landing gear broken off. Unknown internal damage at this point).
So, for those thinking of the Litchi app I strongly suggest multiple open field tests, including taking control over the drone as well as breaking contact to have it return. I certainly failed in that regard, an error that won't be replicated. Yet, in my defense, I did rely upon the Litchi statements in the software, on screen, that I could take control, as well as my initial confirmation. I paid nearly $30 US for the Litchi app.
Once my P4pro is back I may decide not to ever again use it. The DJI Pro doesn't provide VR options but it never failed me.
In order to make the Litchi app operate I had to uninstall mt DJI GO app. That was annoying in as much as Litchi claimed that a user only needed to select Litchi as the default upon opening the program when connecting to the controller. (That was not correct in my case).
After several sucessful flights I chose to use Litchi's GPS autonomous flight program. (For those not familiar, Litchi provides a screen within a screen view. Both the camera and Google earth satellite view appear in your screen. Switching between them [one view is smaller in the lower right corner] is accomplished by touching the screen).
My flight path was over a forested area, and was one I had previously flown manually, using the Litchi as well as DJI Pro apps. Hence, I knew that I had adequate range for control and signal.
After programming the flight path (basically a rectangle over 200 acres), and setting the altitude, I was ready to set the P4pro free. The Litchi program states on screen that you can take over control at any time.
I set the program to go. The P4pro flew to the first waypoint without issue. I used the controller left toggle to increase altitude without issue. The P4pro turned to fly, and did so, to the next way point. Whilst using the Zeiss VR goggles I noted all was working fine, or so I thought.
The P4pro reached the second waypoint turned smoothly for the third. On this route I began to see altitude issues as the terrain was rising but the P4pro wasn't. I gave left toggle throttle to increase altitude. Nothing! I disconnected the virtual reality gogglez and now was on screen.
I tried to again gain altitude - nothing. I then tried to get the drone to return home. Nothing. My last act was to try to stop the flight program and take manual control. Nothing.
My P4pro crashed into the top of a 90 foot plus Red Oak. Unfortunately, that was the end of the P4pro as its recovery caused it to fall, unpowered, from 80-some feet, to the frozen forest floor. (The case was cracked, camera sheared off, and both landing gear broken off. Unknown internal damage at this point).
So, for those thinking of the Litchi app I strongly suggest multiple open field tests, including taking control over the drone as well as breaking contact to have it return. I certainly failed in that regard, an error that won't be replicated. Yet, in my defense, I did rely upon the Litchi statements in the software, on screen, that I could take control, as well as my initial confirmation. I paid nearly $30 US for the Litchi app.
Once my P4pro is back I may decide not to ever again use it. The DJI Pro doesn't provide VR options but it never failed me.