Ok so as well as my Spark RC unlinking from the drone last week and I can't link whatever method I try (I have tried all methods on the forum believe me), have contacted DJI support but still no response after 4 days, but now the DJI GO App (android v4.2.4) now thinks I have a Mavic air so I can't even fly off the phone. What is going on? and are these 2 events related?

Have you readed the manual? Download it from dji and see how you should link it back again.

If you read my post you will see I have tried all methods, 3 second press, 9 second press of both, some of the weird and wonderful combinations suggested on you tube but the controller just beeps angrily at me and flashes red and as you have red now DJI GO thinks I have a mavic air. I am going to do a 6 second press and see if this will get the go app to recognise the spark but the controller issue remains the same

Right so switching the spark to phone wifi then shifts the go app to recognise my equipment as a spark but not when in RC mode (3 second press)

OK things are getting weirder, the app cannot find my firmware version (should be the latest) so I plugged the spark into DJI assistant and it can't find the firmware version either!! I have tried with all 3 of my batteries and all say the same. Should I restore to factory defaults and try reloading the latest firmware in?

Right, just to add to the ongoing saga of woe, the spark does not now seem to be giving out a wifi signal for DJI go to connect too (this has all happened in the last 10 minutes!!)

I'd say you'd be best taking everything back to scratch and reload the firmware.
Forget the WiFi connections between your phone to the 5park & RC, then uninstall/reinstall the app (remember to sync your flight records before uninstalling).
When the app is reinstalled, follow the onscreen instructions to pair the devices again.

Thanks for the advice giving it a go now

Reset to factory defaults in assistant. Deinstalled Go 4 and reinstalled. The RC is giving out a wifi signal, the spark is not ( 6 second press 2 beeps) I think this may be something to do with the sparks wifi output/ receiver so I'll see if DJI are interested in replying this time !!

Now reset the 5parks WiFi by holding the power button for 9 seconds (3 beeps).
You should now be able to pair the RC & AC.
Press the power button on the 5park for 3 seconds (1 beep), then on the remote, press & hold the Flight pause - Function - Customise buttons simultaneously.  If pairing is succesful, the LED on the remote will turn green.

Same scenario I'm afraid. Spark's Wi-Fi returned after a 9 second press, as well as the RC wifi. Sparks wifi then disappeared. Did the linking procedure as directed by the app and it thinks it's connected but the remote is still beeping and the light is flashing red and green at the same time. It lets me go fly (and says firmware is up to date) but I suspect if I try it will be the same that I can use the controls on the screen but not the physical controls. Then did a 6 second 2 beep press to try and link to the phone and again the sparks wifi fails to show up. So something is not right somewhere as it's certainly not behaving as it should do.

I appreciate your efforts though

Last time this kept happening it was down to the latest Apple IOS update and the Go App. Caused the exact same issue. Would connect and then 10-15 seconds into flight would disco again and again. Took a short while to get to the bottom of it but got sorted. Noticed yesterday that another new IOS UD was waiting on my iPad. No longer have any DJI drones so won't affect me. Hope it's not another DJI/Apple battle.......

Thanks for the reply but I am on android but only started to happen after mavic air announced and I assume dji go updated

Phantom4 pro

Herbert Gantert Posted at 2018-2-1 06:53
Phantom4 pro

? what ?

What device are you using?
(mobile)

Montfrooij Posted at 2018-2-1 07:16
What device are you using?
(mobile)

Samsung S7. Upgraded to this phone after my old android phone could not cope with the DJI Go app and was laggy with loss of transmission. I have so far been impressed with the S7.

Yakboy Posted at 2018-2-1 07:47
Samsung S7. Upgraded to this phone after my old android phone could not cope with the DJI Go app and was laggy with loss of transmission. I have so far been impressed with the S7.

That should be good to go for the Go4 app

Montfrooij Posted at 2018-2-1 07:50
That should be good to go for the Go4 app

It's been fine for the 3 months I've owned it. I suspect that the issue is not the RC or the phone but something to do with the Wi-Fi circuitry on the spark

Yakboy Posted at 2018-2-1 08:17
It's been fine for the 3 months I've owned it. I suspect that the issue is not the RC or the phone but something to do with the Wi-Fi circuitry on the spark

Very strange indeed

Sounds like you've exhausted everything you can try on your own. Maybe time to call DJI and open a ticket?

Yakboy Posted at 2018-2-1 03:47
If you read my post you will see I have tried all methods, 3 second press, 9 second press of both, some of the weird and wonderful combinations suggested on you tube but the controller just beeps angrily at me and flashes red and as you have red now DJI GO thinks I have a mavic air. I am going to do a 6 second press and see if this will get the go app to recognise the spark but the controller issue remains the same

No open channels for the spark to use to connect to the controller.  How does the spectrum page look?  Lost of open channels for the Spark or are they all red columns?  My controller wouldn't link either until I changed to 5.8ghz.  Busy area I live in.

I've already contacted DJI  (twice) but no response yet. I will have a look at the channels but I live in a small village in North Yorkshire so we are not over-run with wi-fi traffic and the problem started when I was in the mountains in Austria with zero wi-fi signals around

Yakboy Posted at 2018-2-1 11:13
I've already contacted DJI  (twice) but no response yet. I will have a look at the channels but I live in a small village in North Yorkshire so we are not over-run with wi-fi traffic and the problem started when I was in the mountains in Austria with zero wi-fi signals around

Sir, please provide me a screenshot of the image screen. Can you search the wifi of RC? If the DJI Assistan 2 can not recognize the firmware, please try the 1.2.0 or 1.2.2 version of DJI Assistant 2. Thanks for your support.  

Elektra, please can you elaborate on what screen shot you want me to take. The RC wi-fi is OK and is visible to the phone and links to it. I could fly the drone from the phone a few days ago but not now

OK so had a little spare time today so thought I would try and get a screen shot for Elektra, so went through the linking process (the app driven one)with the RC and it linked successfully !! and did a couple of  little test flights without issue. So I thought I would link it to the phone and see what happens, so 6 second ( 2 beep press). The drone is showing no wifi signal at all to the phone. So 3 second press (1beep) and tried to relink to controller. Would not link initially but did after another 3 second (1 beep) press and the GO 4 app relinked, so I don't know what is going on? Happy to be able to fly off the controller but still convinced there is something wrong with the drones Wi-Fi circuits and a little nervous to fly off the RC in case it delinks mid flight? Any idea's Elektra?

Just don’t fly at home or where there are other knows networks than the spark rc.
Otherwise your phone may reconnect to one of them during flight.
Also make sure home point is correctly set before takeoff.

Heliman,

The phone can discover and link to the RC without problems. It's just that in the past week the spark does not give out it's own Wi-Fi signal when you try to fly it with the phone only. This seems to indicate a problem with the drone and I am nervous that it at some point will no longer be controllable by the RC

Just as a reminder, that you do need to select spark from the DJI Go 4 app drop down menu as the default is MAVIC Air.  Probably you noticed that already.

Yep noticed that but not when it detects the RC it changes over but as on wi_fi mode the drone isn't outputting a signal it doesn't change

Quick update, after a web chat with support today, I did the contacting as nobody had got back to me, the spark (& controller)is going back to DJI for them to take a look at so will update when they've figured out what's going on