Every time it gets worse .... it was like this on the iPhone 7 Plus, New iPad and iPhone 8 Plus

iPhone 8 Plus + MA 0400 + DJI GO4 4.3.0

Hi, we do apologize for the inconvenience caused. Can you please try to reformat your micro SD Card via computer? Let's see if this will work. Thank you.

I hate it when it does that...............

DJI Natalia Posted at 2018-8-24 09:45
Hi, we do apologize for the inconvenience caused. Can you please try to reformat your micro SD Card via computer? Let's see if this will work. Thank you.

Format SD Card - OK
Re-Install Firmware 0400 - OK
Re-Install DJI GO 4 4.3.0 - OK
Re-Configure RC and MA - OK
Do the rain dance - OK
Drink a beer - OK
To Pray - OK
Make a Voodoo Doll - OK
Call Mr. Pres. Trump - Tried but could not

SAME PROBLEM !!!
iPhone 7 Plus (90% free mem) - same lag
iPhone 8 Plus (80% free mem) - same lag
New iPAD ( 60% free mem) - same lag

Re-Install DJI GO
ver. 4.2.12 - same lag
ver. 4.2.14 - same lag
ver. 4.2.16 - same lag
ver. 4.2.20 - same lag
ver. 4.2.22 - same lag
ver. 4.2.24 - same lag
ver. 4.3.0 - same lag

This has also been occurring on Fruit Company products as well?! We've been seeing this on Android + 4.2.20. One of the main reasons I declined to purchase the Mavic 2 Pro.

Vaporay Posted at 2018-8-24 10:34
This has also been occurring on Fruit Company products as well?! We've been seeing this on Android + 4.2.20. One of the main reasons I declined to purchase the Mavic 2 Pro.

I'm thinking too.

I am holding off on Mavic 2 order too. It seems that if you don't use one of their certified phones or even if you do lately (List is too damn small) you could be screwed. So you may seriously need to buy a new phone to make all this work. I flew more in the first week of ownership of the Air that I have in the last 2-3 months combined. Too many issues and no confidence.

Yes I started to see some lag when test with iPhone 8. This is very bad as I didn’t even take off. If iPhone 8 has this performance it will be much worse for other devices.

I'd prefer to be overly cautious especially with $800-$1K flying in the sky. The screen lag issue is extremely disconcerting because it results in delayed response which could be very bad for inexperienced pilots that panic. The fact that DJI doesn't even advance test and approve just released flagship devices (such as my Galaxy S9+) with DJI GO is unacceptable.

I think this is why DJI delay M2 launch to fix video lag problem. Seems the problem still not completely fixed. The early version Go video is much smoother.

i noticed some lag as well, however not as bad as i seen it before....  however pre-update my lag was actually minimal...post updateonly done a few flights and the lag is noticable... 1/4 second with 4/5 and 5/5 bars on occusync..

drone: mavic pro
app:  latest, 4.3 (mavic 2 support added)
phone/device: Apple iPhone XPhone/device OS version:  iOS 12, developer Beta 10
method of connection: OTG (duh)
wifi and BT status: disabled/off
signal strength: Variable, mostly 4/5 and 5/5 bars when i noticed 250ms + of lag (quarter of a sec plus).. 250ms is acceptable at 3 bars and below.. but not 4/5 and 5/5 bars no way.

The Yaw causes the lag the most.

this is why im going for the M2P with Occusync 2.0

You are flying in a very populated area. It's going to affect the Wi-Fi signal that way because there is probably a million other Wi-Fi signals there. I have experienced the same thing myself.

However. 2 weeks ago, i flew my DJI Mavic Air (with 0400 firmware) 1.2 km away @ 250m above the ground without ANY lag at all. The reason i managed that is because i was in an area with no Wi-Fi signal inteferences. I was using the latest DJI GO 4 version at that time (the version before 4.2.24) and i'm also using a Samsung Galaxy S9+ with Android 8.0 Oreo. In short, i have had zero issues with the drone and the DJI Go 4 app in my 41 flights with it so far except for some false error messages like the 'Moror Current Error' that is confirmed a million times to be a false error message that does nothing.

It's also a good idea to manually check the Wi-Fi channels in the DJI Go 4 app to see what channels has the less amount of Wi-Fi signal inteferences and then choose the best channel that way.

I always double and tripple checks everything with my drone and my DJI Go 4 app that everything is in order before i'll put my drone up in the air. Maybe that's one big factor on why i have had zero issues so far after 41 flights?

Lakagigar Posted at 2018-8-25 14:27
You are flying in a very populated area. It's going to affect the Wi-Fi signal that way because there is probably a million other Wi-Fi signals there. I have experienced the same thing myself.

However. 2 weeks ago, i flew my DJI Mavic Air 1.2 km away @ 250m above the ground without ANY lag at all. The reason i managed that is because i was in an area with no Wi-Fi signal inteferences. I was using the latest DJI GO 4 version at that time (the version before 4.2.24) and i'm also using a Samsung Galaxy S9+ with Android 8.0 Oreo. In short, i have had zero issues with the drone and the DJI Go 4 app in my 41 flights with it so far except for some false error messages like the 'Moror Current Error' that is confirmed a million times to be a false error message that does nothing.

You may be right in this particular situation but I have been complaining about this in earlier versions.
Note that in this post ( Mavic Air - Video Lag #7 ) the area where I flew was completely no interference.
I tested using CUSTOM 5.8 / 2.4Ghz mode as well as DJI GO and LITCHI.

The problem is the firmw 0400

TZero Posted at 2018-8-25 15:15
You may be right in this particular situation but I have been complaining about this in earlier versions.
Note that in this post ( Mavic Air - Video Lag #7 ) the area where I flew was completely no interference.
I tested using CUSTOM 5.8 / 2.4Ghz mode as well as DJI GO and LITCHI.

I would be inclined to think it is firmware as well as throughout the app changes I havent noticed any difference but as soon as .400 came out signal went to hell and back. Paradoxically, flying on higher interference almost makes it better.

I would suggest trying another test flight, way out in middle of no where - nothing around.  Make a video of that flight showing video Lag (or no video Lag).

Do what I did, buy a cheap android with very good processor and ram. Octacore P25 2.5 Ghz and 6 GB ram, Vernee Pro Mars. I bought it for just 150 euros on Amazon. And it works great with all updates so far. ;)

HedgeTrimmer Posted at 2018-8-25 20:39
I would suggest trying another test flight, way out in middle of no where - nothing around.  Make a video of that flight showing video Lag (or no video Lag).

My friend.
You know that videos have already been registered in places where DJI GO showed any sign of interference ( Link )

If I had known that to use Mavic Air I would have to be on a desert island, I would not have bought it.

Why it worked well when it was the Firmw. 0200 and 0300?
I repeat....I've already used all versions of DJI GO in various Apple devices w/ same problem

Regards

TZero Posted at 2018-8-26 02:27
My friend.
You know that videos have already been registered in places where DJI GO showed any sign of interference ( Link )

Why it worked well when it was the Firmw. 0200 and 0300?

Then you need to rollback Mavic Air's firmware to .0200 or .0300.   

  

Ops me bad, you can't.


I think I would open a return for repair ticket with DJI, asking them to replace Mavic Air with one running .0300.

HedgeTrimmer Posted at 2018-8-26 09:22
Why it worked well when it was the Firmw. 0200 and 0300?

Then you need to rollback Mavic Air's firmware to .0200 or .0300.   

You're right.

I went to the official seller in my town.

They showed me that all the MAs they had are already with firmw.

0400 and voilá ... the "test-drive" MA w/ lag in the video preview  

TZero Posted at 2018-8-25 15:15
You may be right in this particular situation but I have been complaining about this in earlier versions.
Note that in this post ( Mavic Air - Video Lag #7 ) the area where I flew was completely no interference.
I tested using CUSTOM 5.8 / 2.4Ghz mode as well as DJI GO and LITCHI.

Even in that video you are in a very populated area with high rise apartments that each have WiFi signals. It looks like interference to me. I don’t have this issue with my iPhone. I also don’t fly in residential areas.

Jeff7577 Posted at 2018-8-26 12:37
Even in that video you are in a very populated area with high rise apartments that each have WiFi signals. It looks like interference to me. I don’t have this issue with my iPhone. I also don’t fly in residential areas.

OK.....and in this video below?

TZero Posted at 2018-8-26 13:09
OK.....and in this video below?

https://youtu.be/2KLNKhwxyWs

A possibility that would need to be tested...

The Noise (dBm) graph may be only from perspective of SmartDevice.  As such as drone flys around it may come closer to Interference (Noise) that does not show up on graph being displayed by your SmartDevice.  Even though it appears to be clear of noise, on drone's end it is using frequency loaded with noise (Interference).

You would need to repeat the test you did in last video you posted.  First verifying no Noise (Interference), and specifically noting location where there is Video lag.  Then take you SmartDevice to location where drone experienced Video lag, and see if there is any Noise (interference) showing in Graphy for that location.  


If Graph does show interference (Noise), pick a frequency that is emtpy.  Then fly from that area to see if you still get video lag.   Keeping WiFi on same frequency - Lastly moving back to original location and once again flying drone to / from location to see if get video lag at a distance.  

TZero Posted at 2018-8-26 13:09
OK.....and in this video below?

https://youtu.be/2KLNKhwxyWs

You are using custom channel selection ?

HedgeTrimmer Posted at 2018-8-26 14:31
A possibility that would need to be tested...

The Noise (dBm) graph may be only from perspective of SmartDevice.  As such as drone flys around it may come closer to Interference (Noise) that does not show up on graph being displayed by your SmartDevice.  Even though it appears to be clear of noise, on drone's end it is using frequency loaded with noise (Interference).

I appreciate your suggestion but did you get to see the videos posted on this link? (show in #15)

I have tested in different places and in various ways.

I'm sorry but I have to repeat.

Same places flying with no problem with firmw 200 and 300

Aardvark Posted at 2018-8-26 14:52
You are using custom channel selection ?

Custom and Auto....2,4/5,8Ghz

TZero Posted at 2018-8-26 15:45
Custom and Auto....2,4/5,8Ghz

Stick with auto select; as it says on the screen if using custom mode then any interference will degrade the video.

I believe Brazil operates to CE regulation, which means that the 5.8 GHz channels are transmitted at 4dB lower than the 2.4GHz channels.

Under ideal conditions the furthest range is 500m @ 5.8GHz. And the area you're flying in looks far from ideal for clean wifi communications. Looks like data packets are being dropped because of interference, giving the loss of video frames.

Aardvark Posted at 2018-8-26 15:54
Stick with auto select; as it says on the screen if using custom mode then any interference will degrade the video.

I believe Brazil operates to CE regulation, which means that the 5.8 GHz channels are transmitted at 4dB lower than the 2.4GHz channels.

TZero Posted at 2018-8-26 16:53
[view_image]

Transmission Power (EIRP)

2.400 - 2.4835 GHz:
FCC：≤26 dBm
CE: ≤18 dBm
SRRC: ≤18 dBm
MIC:≤18 dBm

5.725 - 5.850 GHz:
FCC: ≤30 dBm
CE: ≤14 dBm
SRRC: ≤26 dBm

Max Transmission Distance (unobstructed, free of interference)

2.400 - 2.4835 GHz: FCC: 4000 m CE: 2000 m SRRC: 2000 m MIC: 2000 m 5.725 - 5.850 GHz: FCC: 4000 m CE: 500 m SRRC: 2500 m

I use iPhone 8 with DJI Go 4.3. U can see some lag when tested on ground. I took some flights yesterday and not aware the lag in flight. Seems still acceptable for me. But not sure how about the device with lower performanc.

TZero Posted at 2018-8-26 15:45
I appreciate your suggestion but did you get to see the videos posted on this link? (show in #15)
I have tested in different places and in various ways.
I'm sorry but I have to repeat. Same places flying with no problem with firmw 200 and 300

Yes, I have.
I realize it is same place where Firmware .0200 & .0300 worked.

My point is you need to do more to isolate the cause.  Being able to show GO-4 App's Noise menu is giving you only one side of picture (or bogus information); leading back to Mavic Air's WiFi having problems would give you more leverage with DJI.

HedgeTrimmer Posted at 2018-8-26 19:23
Yes, I have.
I realize it is same place where Firmware .0200 & .0300 worked.

I appreciate your efforts in helping me.
I'll try to find a place as isolated as possible and test.

I tested 4.3 with Android 8 and result is bad. The performance clear worse that 4.2.24. Not recommend to upgrade to 4.3 for Android device!

I recently updated my Galaxy S7 to Android 8.0 and did a factory reset as well as clear cache using Android Recovery on the phone and then installed DJI GO 4 (version 4.3.0) and I've noticed very little if any lag while flying out to 2500' and still had 75% signal. I was out in the Hill Country with some large homes near by and didn't experience any issues, the fact that I was out away from densely populated areas with a large amount of WiFi could be why I had great results and no Video Feed lag.

I have also flown near a heavily populated area with plenty of WiFi and as before never experienced any video lag, although when flying near homes I only go out to about 1000' at max

Hi all so I'm a complete newbie to DJI products and I just picked up the amazing Mavic2 Pro but Im having horrible lag and stuttering. So in my very limited searching thus far it does appear my older Moto Z running android 8.0.0 is likely not helping the situation.
Other than the obvious get a new phone, what settings for the cache or video should I try?

Donald (Don) Olsen Posted at 2018-8-28 11:43
Hi all so I'm a complete newbie to DJI products and I just picked up the amazing Mavic2 Pro but Im having horrible lag and stuttering. So in my very limited searching thus far it does appear my older Moto Z running android 8.0.0 is likely not helping the situation.
Other than the obvious get a new phone, what settings for the cache or video should I try?

Just get an iPad mini they work great.

hallmark007 Posted at 2018-8-28 11:56
Just get an iPad mini they work great.

Thank you for the response but i dont want to start with apple just for this purpose.

Donald (Don) Olsen Posted at 2018-8-28 12:00
Thank you for the response but i dont want to start with apple just for this purpose.

Well there are some good cheap android tablets should work just fine, you don’t need cellular to fly.

True but this is the list of recommended correct
Android version 4.4.0 or later. Compatible with Samsung S8, Samsung S7 edge, Samsung S7, Samsung S6, Samsung S5, Samsung NOTE4, Samsung tabs 705c, Ascend Mate 9, Ascend Mate 7, Huawei Honor 8, Huawei P8 Max, Vivo X7, Mi 5, Google Nexus 6p, Nexus 9, Google Nexus 7 II, LG V20.