mtnmaddman
lvl.4
United States
Offline
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Here is some more detailed info on how to possibly cure your problem
This worked for me on my Samsung Tab S 8 Android 5.02 to fix the lag making FPV unusable
temporarily "Disabled' the app in the application manager:
Settings > Applications > Application Manager > ALL (scroll right if needed to see this option) > Google Play Services > Disable (or Uninstall)... then choose to uninstall any updates from the stock version.
Once complete choose to 'Enable' the app again but don't install any updates when requested to.
Prior to that you should probably Turn off "Automatic App updating":
"Play Store > Settings > Auto-update apps > "Do not..." - then ignore any apps that want to update play services as part of their own update (maps etc), until DJI come up with a fix or workaround.
My downgraded version of Google Play Services is now v 6.7.77.
So perhaps it wasn't a DJI firmware update, rather a coincidental Google Play Services update that caused this particular issue?
In any case perhaps an option can be added to the DJI pilot app to bypass Google Play Services for GPS functionality, for those users that are experiencing this issue:
"The reason for this is that for the last year or so, Google has been recommending developers use Google Play Services for Android Device location GPS functionality which allows for Google Play Services to batch GPS requests, hopefully preserving battery life. However, developers still have access to the native Android location APIs which they could leverage to request device location."
I have found something that might possibly help those using the samsung tab s, In addition to rolling back google play of course, download the advanced task manager by infolife llc, and install of course.
Before you start the pilot app. and after you have the tab lit up, go to your developer options And scroll to the bottom and check the limit background apps allowed to run to "0" , You may run the task kill from the task manager you just downloaded, before or after you set the apps run to 0, There will only be a few things left running, (including google play services of course) .
I experience practically no lag, what so ever, I believe I can tell a physical heat difference just feeling my tab, the tab feels normal. It does maybe slow a bit, late in the flight , but I am also mirroring video to my glasses also, But here is the good thing after 10 min. or so into the flight use your pull down menu. The task manager may have placed a message there stating that the processor is lagging and do you wish to fix.
Tap fix, and it will tell you that the dji pilot app is lagging the processor , tap the repair. and the pilot app., I think speeds back up, if it is lagging at all, I am still testing and observing, you may want to look at this, and experiment yourself if you have a tab s. This may apply to other Samsung devices I don't know. there is also one other thing you may want to look at.
In your developer tools there is another option, "force 2d gpu video rendering" I believe this speeds thing s up further, for a bit, but may heat and lag processor quicker. Still observing and testing.
Note that you have to set the background app limit to 0 and run kill each time you start.
Flew a full 20 min flight last night , no problems, except that my motors were hotter than ever I could not really touch them, It was 100 degrees out , and a very long flight, considering that the esc.s are an integral part of the main board on the P3, I am not going to do that again. The tablet felt normal and no lag. I hope this helps and you get the same results. This may be repeat info. As I have not read this whole thread.
This seemingly works best on lollipop, I have two tabs one kit kat one lollipop, before last updates the kit kat seemed to work better, opposite now, I got the lollipop tab to clock up to over 40,000 on an tu tu. right up there with the note 5, the best I can get out of the kit kat now is about 36,000 below nexus and g3. |
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