JtrJr-UAV Pilot
lvl.4
Flight distance : 4341 ft
United States
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Dave and Others,
Okay, I’ve got some very interesting news today. Hopefully, this will help others and help DJI figure out what is happening here. I received an email from DJI support this morning while I was already in the middle of attempting to rectify this bewildering problem. DJI support is requesting that I return my bird for repair.
So, let’s start with the exact problem. After updating to 1.3.2 and then to 1.4.1 from developer’s version 1.1.1003 I immediately started experiencing a serious “video loss” issue. I could be two feet from the bird or hundreds of feet but the video signal would continually go out even though the signal strength showed full signal. The more I flew the bird the worse it got. I started to see some other posts describing similar issues but it seemed somewhat sporadic at the time. I started trying to isolate the problem. I primarily use an Nvidia Shield with my P3Pro but also use a Samsung Tab 4 and an iPad Mini. I use two apps, DJI Go and Litchi. I started looking for the obvious, switched out cables, reinstalled apps. Nothing would solve the issue. I then decided to go back and just use my iPad Mini with just the DJI Go app. Same effect, tried cables, apps, calibrations, anything I could come up with, anything others had attempted. I also tried the Tab 4 with the same results.
Unable to resolve the issue, I decided to downgrade. Went back to 1.3.2. Didn’t do any good. Read about the channel hack and tried that with no relief. Tried to go back to the developers version but was unable to do so. Started posting here looking for some info from DJI but wasn’t getting anywhere although DJI-Dave was listening and was trying to find some answers. Kudo’s to DJI-Dave for even trying. I very much appreciate his responses and concerns even though he wasn’t telling me what I wanted to hear. Hearing something, even if it’s not something you want to hear is better that hearing nothing at all in my book.
Went back up to 1.4.1, tried to get any other version that I could to load on the bird. Absolutely nothing would resolve this issue. Finally, a new developers version (1.5.0011) showed up. The day it posted I loaded it on my bird with great hope that it may resolve my issue. Nada! Started really getting fired up and wrote a few of the recent posts in this thread.
This morning I decided to give it one last go. Remember, I have three different FPV devices. The iPad Mini I use daily for emails, web surfing, other apps. The Nvidia Shield and the Tab 4 are only used for my P3Pro and my P2V+. I decided to take my Nvidia Shield and do a full factory reset, erase everything. I then went on to the DJI site and downloaded a fresh copy of firmware version 1.4.1 and the DJI Go app. I first tried to downgrade my firmware to 3.2.1 but it wouldn’t go because I had already loaded developers version (1.5.0011). I figured I’d try the fresh 1.4.1 again but it wouldn’t do that either because the bird was already on that version. I loaded developers version 1.5.0011 again and then downgraded to the fresh 1.4.1 that I downloaded this morning.
I went to my Nvidia shield, entered my network password and my email, that’s it! I used Google chrome to go directly to the DJI site and downloaded the Android APK file. I did not install any other apps or do any other updates. I now have a fresh new Shield with only the DJI Go app installed on it and a fresh install of 1.4.1 on my bird. Took it out and started testing it. At first I got a few signal loss messages when very close to the bird. I am so frustrated at this point and I have a clear LOS for better than two miles, so I decided to take it up and out. As I get out 50’ or so I’m not getting the signal loss error anymore. My live feed is solid. I run it out further, faster and in all directions. I get a few very quick signal loss messages. I think maybe 3-4 very quick ones on that flight. It wasn’t a completely full battery so I swapped batteries with a fully charged one and fired up again. No signal loss errors. I walk down to the end of my driveway, put the bird up to 98’ and run it straight down my gravel road to 4,600’ before I start to lose signal.
I ran 4 batteries through the bird this afternoon and had a few very quick and minor signal losses. 98% of the time, I had a good, live, feed with no lag! Obviously, I’m not this quick to say that I have solved this issue but at this point it appears to be working as good as it did the first day I got it.
I felt it was imperative to share this information with others experiencing this problem and with DJI in hopes that they can solve it. Because I am using both Android and IOS devices and the problem existed in both it has to be something that both OS’s share. I have not done any further testing with my iPad or my Tab 4 and if my Shield continues to operate properly, I probably won’t as I don’t want to screw anything up.
I will continue to share further testing with my Shield on this thread. I didn’t do a very good job writing this because I am so excited about being able to fly my P3Pro again but I really wanted to get this info out to any of you that may be experiencing the same issue and to DJI so that they can take a closer look at this particular scenario.
Dave, thanks for trying to help. Please continue to do so and share this info with your peers. Please continue to look into this and share any info you get with the rest of us. This is still a serious problem for many but there may be some useful information here to start finding the culprit and the solution.
Jerry
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