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No image transmission signal
955 16 2017-3-17 02:47:25
Kwon_KOR
Beginner
Korea, Republic of
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Cannot view my camera from device screen.. the screen showing "No image transmission signal", and black screen.

so i did some test..

first, i take picture and videos when the screen was black.. and that seems not strange. the photo and video was normal in SD card. the camera seems to be well connected to the device.
the pin in gimbal mounting plate is normal. it didn't break or bend.

second, i connected HDMI port to hdmi device.. and that was bad. the HDMI screen was black too.

i use iPad mini 4 and x3 camera.

so what's the problem? please help me.
2017-3-17 02:47:25
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Mike-the-cat
Second Officer
Flight distance : 3295737
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Singapore
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Try rebooting the aircraft. If this fails, then we worry.
2017-3-17 03:18:42
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Donnie Stugots
First Officer
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United States
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   Ok , you do have full control of the aircraft correct ?  And you can take video on the SD card , the Only problem you have is there is no LIVE video to the go app correct ?   The camera does the normal start up dance when first powering up  correct .  

Have you done a recent update to the system ?  when you did it did you update both the RC and the AC ?  


We must make sure  the aircraft and RC on compatible firmware?  Have you recently done an update to the system ?  Please list the system firmware  on the "about " page of the Go app so we can make sure you are on compatible  firmware.  ( picture below of the page I would like to see , It is NOT a curent pic  of the latest firmware and is just an example of what  I would like to see )

If you are SURE  you are on compatible firmware then do the next thing below.   ( If you are on the latest it would be 1.7.40 on the RC transmitter and 1.10.1.40 on the aircraft . )  

If you can please re install the CURRENT FIRMWARE that is on the aircraft NOW  ( being sure the RC transmitter is off ).  Then after the SD card is in the aircraft for a few minutes it will give a log to what is on the aircraft.  ( or if you saved the last update on the SD card the  firmware file will still be on it, that will work fine too, as long as it is the most recent update you have done )

Next place the SD card into a PC and we want to see the "hidden file "  I will give a link on how to do this .  We want to see line 0800 and 1500 If these lines of code say " device Not connected " then you will need to send the system in for repair , normally just the camera. ( this is because of a corrupted Or broken video module . )  Also I have a link to what the file we want will look  like if it is bad, you will want to view the file on the very bottom of the log, that will be the most current. ( link below in red )

device not detectred.PNG


Link is below  for viewing hidden file  :
How to View Hidden Files: Diagnostic tool for SD and No Signal Issue
donnie






about page 1.8.PNG
2017-3-17 05:13:13
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DJI-Jamie
DJI team
Flight distance : 34239
United States
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Try Mike and Donnie's advice and let us know if it persists.
2017-3-17 14:34:29
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RichJ53
First Officer
Flight distance : 161225
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United States
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Follow the information provided by MTC and Donnie

Sometimes relinking the remote to the Inspire fixes this issue too.

Screen shot with current FW and video for relinking below
Rich
IMG_0114.jpg


2017-3-17 15:51:30
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Mark Guille
Second Officer
Flight distance : 614994
Jersey
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Do you have both the DJI Go and DJI Go4 app installed? I have read from others that both apps on the same device can conflict. Since installing the Go4 on mine I have been having similar issues, unfortunately, with the weather, I have not been able to check this out.

Mark G.
2017-3-18 00:02:53
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RichJ53
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Mark Guille Posted at 2017-3-18 00:02
Do you have both the DJI Go and DJI Go4 app installed? I have read from others that both apps on the same device can conflict. Since installing the Go4 on mine I have been having similar issues, unfortunately, with the weather, I have not been able to check this out.

Mark G.


Hi Mark

I am not sure this is true because I have been using both Apps on my iPad mini2, mini4 and iPhone 7 without any issues. You need to make sure only one is turned on at a time and without the other one running in the background.

IMO  that has been my experience
Rich
2017-3-18 21:37:58
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Mark Guille
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Jersey
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RichJ53 Posted at 2017-3-18 21:37
Hi Mark

I am not sure this is true because I have been using both Apps on my iPad mini2, mini4 and iPhone 7 without any issues. You need to make sure only one is turned on at a time and without the other one running in the background.

I'm not sure either Rich, which is why I ask. What you're saying certainly makes more sense.

Mark G.
2017-3-18 23:58:29
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JONNY-C
Hobbyist
United Kingdom
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Hi Guys

I'm also experiencing this problem, with the screen on my iPhone 6 refreshing / going black / no image transmission.

I've followed the instructions given by Donnie and these are the logs which appeared.

[00006958]Version checking[1]...
[00007019][04 00][00] v1.30.1.43 -> v1.30.1.43
[00007168][08 00][00] v2.14.9.42 -> v2.14.9.42
[00007221][01 00][00] v2.70.5440 -> v2.70.5440
[00007265][01 01][00] v2.70.5440 -> v2.70.5440
[00007376][03 05][00] v34.1.0.5 -> v34.1.0.5
[00007476][03 06][00] v2.4.20.28 -> v2.4.20.28
[00007684][05 00][00] v3.0.6.2 -> v3.0.6.2
[00007742][09 00][00] v3.1.0.0 -> v3.1.0.0
[00007835][11 00][00] v3.9.0.0 -> v3.9.0.0
[00007915][12 00][00] v1.11.0.0 -> v1.11.0.0
[00008015][12 01][00] v1.11.0.0 -> v1.11.0.0
[00008095][12 02][00] v1.11.0.0 -> v1.11.0.0
[00008195][12 03][00] v1.11.0.0 -> v1.11.0.0
[00008333][15 00][00] v1.1.2.0 -> v1.1.2.0
[00008415][17 00][00] v1.1.0.8 -> v1.1.0.8
[00008516][17 01][00] v2.0.1.6 -> v2.0.1.6
[00008581][19 00][00] v1.0.8.96 -> v1.0.8.96
[00010632]Packet upgrade cancelled at version checking.

Is everything ok with these log.

Many Thanks

Jonny
2017-3-19 04:13:56
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Donnie Stugots
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United States
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JONNY-C Posted at 2017-3-19 04:13
Hi Guys

I'm also experiencing this problem, with the screen on my iPhone 6 refreshing / going black / no image transmission.

Logs are fine .When you say loosing image is it all the time or just once in a while ?  Can you try another go app device as I find many times it is the cause of the failure .Change the Cable from the Go app to the RC this is another culprit .
Be sure to clean and inspect the contacts of the Camera  and the mateing surface of the Vibration board.

DID YOU PROVIDE THE LAST LOG AT THE BOTTOM OF THE PAGE ??? JUST WANT TO MAKE SURE  

( I usually have mine to compare but have chose not to update since version 1.8 ).  




Be sure you dont have the Firmware update still on the SD card in the aircraft as I heard this can cause problems .  

Read my tips page on this , then if still have issues get back with us .

donnie







2017-3-19 04:28:41
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Donnie Stugots
First Officer
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United States
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JONNY-C Posted at 2017-3-19 04:13
Hi Guys

I'm also experiencing this problem, with the screen on my iPhone 6 refreshing / going black / no image transmission.

Read this page over as well, (link below)  The 1 thing to do if you can't find a solution is to find a powerful I pad pro Or I pad  with a A8 processor and test your system .  This way you are not chasing your tail it indeed is only the Go app device that is giving you trouble .

Be sure to enable the "hardware decode"   , on the go app device - general settings . I give this and other tips on the link below .
http://forum.dji.com/thread-64817-1-1.html

donnie
2017-3-19 04:35:59
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JONNY-C
Hobbyist
United Kingdom
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Hello

I would say I loose the image every 4-5 seconds.

I've managed to try another device, iPhone 6s, and the problem seems to have disappeared. So I guess its my device?

Thank you
Jonny  
2017-3-19 04:46:46
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Donnie Stugots
First Officer
Flight distance : 862765
United States
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JONNY-C Posted at 2017-3-19 04:46
Hello

I would say I loose the image every 4-5 seconds.
You have solved the problem !! You could  try tweeking  some settings on the apple  phone  7 to get it to work better .

Make sure no other apps open in background .
Enable the hardware decode , usually helps a lot .
Clear the cache on the device giving you grief .Try another GOOD QUALITY  cord....not the kind you get at the gas station .
airplane mode...works for some , makes it worse for others, not sure why.

That is off the top of my head, look at my tips page for more .
When the budget allows get a I pad Pro or I pad  Air with an A8 processor ......I promise you wont regret it .


And thanks for at least trying another device , sometimes I have to pull teeth because the member is not willing to accept that it could be the Go app device .  They usually say it worked in the past so why not Now .....I will tell you why .....the system  has become more complex , we have more encryption to keep outr systems safe, etc.  This is why it may have worked a while back but no longer.  ( I answer my own questions sometime , I am weird like that .....)

thanks for listening

donnie




2017-3-19 05:01:03
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JONNY-C
Hobbyist
United Kingdom
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Thanks Donnie! Really appreciate your help.

I think I might have to invest in a new device then

Thanks again!
Jonny
2017-3-19 05:11:15
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RichJ53
First Officer
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JONNY-C Posted at 2017-3-19 04:46
Hello

I would say I loose the image every 4-5 seconds.


There have been reports of battery issues with the iPhone 6 also. Not sure if this could be the root cause or not.  

It seems that our devices and drones have about a 8-12 month lifespan before they are thrown aside  

Rich
2017-3-19 08:14:52
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Mark Guille
Second Officer
Flight distance : 614994
Jersey
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RichJ53 Posted at 2017-3-18 21:37
Hi Mark

I am not sure this is true because I have been using both Apps on my iPad mini2, mini4 and iPhone 7 without any issues. You need to make sure only one is turned on at a time and without the other one running in the background.

Hi Rich,

Myth busted! Tried with both app installed, tried with both apps running, tried with only the original Go app installed and still getting the same issue. Then I remember that I had taken the gimbal apart to send some screws away to another member. I have since reassembled the gimbal and possibly over tightened the two screws, slackened them off one turn and BOOM, no more image transmission problem.

Mark G.

PS. I like your new yellow boots, they suit you
2017-3-20 03:17:06
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RichJ53
First Officer
Flight distance : 161225
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United States
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Mark Guille Posted at 2017-3-20 03:17
Hi Rich,

Myth busted! Tried with both app installed, tried with both apps running, tried with only the original Go app installed and still getting the same issue. Then I remember that I had taken the gimbal apart to send some screws away to another member. I have since reassembled the gimbal and possibly over tightened the two screws, slackened them off one turn and BOOM, no more image transmission problem.

Hi Mark

Thanks for taking the time to report your findings. It is interesting the camera connection board inside the mount was the culprit. I use a electronic coating on all my contacts. It really helps making sure you do not have a problem (specially removing them all the time).  I have the link posted below incase you are interested.
lubricates and improves conductivity on metal connectors and contacts
DeoxITLiquid


I had to change my avatar because of Donnie's ... all in fun. The yellow boots match my foot size of 15 !  

Rich
2017-3-20 19:18:38
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