After return from DJI repair for motor mount stress cracks (CAS-926799 dated 31 August 2017), I am experiencing frequent loss of WiFi video and still images on iPhone 6 on the ground and during flight. Sometimes on consecutive flights even after landing and recycling a/c, RC and iPhone. This never occurred previous to this repair.
In all cases I fly in rural and unobstructed countryside, though these fault symptoms have also occurred whilst the RC and a/c were on my desk at home. I ensure that the RC antennae are always pointing in the correct orientation iaw DJI instructions. Also, the fault is not logged as a warning as far as I can determine.
I am beginning to lose confidence that the system will work every time I take off, and therefore as a camera platform, it is not fit for purpose.

Warranty still valid with 4 months to go.

This seems to be a common problem and one which I have yet to see a positive answer as to the cause and how it is fixed from DJI.

The a/c has firmware V1.9.20 installed

The iPhone 6 DJI Go App is V3.1.15


Please advise how this fault can be rectified as it appears to be widespread according to this forum.
Do I return my Phantom 3 Standard to DJI for further investigation before the warranty period expires?

Just to verify, could you still control the drone after losing WiFi signal and was there an error message on the app? If yes, could you please provide me with the screenshot. Besides, since the drone was repaired before, I would suggest refreshing the firmware once again.

DJI Thor Posted at 2017-10-5 03:10
Just to verify, could you still control the drone after losing WiFi signal and was there an error message on the app? If yes, could you please provide me with the screenshot. Besides, since the drone was repaired before, I would suggest refreshing the firmware once again.

Hi, Yes there was a red banner stating loss of signal. The flight control was throughout, perfect as has always been the case (for me!)

It occured when the a/c was only a few feet away and airborne, but also occured at home as I was setting up the camera settings. Interestingly, and when at gome, switching from still to video caused a brief recurrence, then the video recovered to normal?

I have read and noted all the directions DJI give wrt pointing the RC and its antennae in the correct orientation, and I always do that.


Just remembered that when my Ph3 Standard was returned from DJI there was no SD card fitted at all. Whenit was sent to DJI for repair I put in the original 8Gb card it came with. I fitted my normal 64Gb card which I have reformatted. Is that a clue?? If I need to " refresh" the a/c firmware, how do I do it please?

fansd556ffc7 Posted at 2017-10-5 03:42
Hi, Yes there was a red banner stating loss of signal. The flight control was throughout, perfect as has always been the case (for me!)

It occured when the a/c was only a few feet away and airborne, but also occured at home as I was setting up the camera settings. Interestingly, and when at gome, switching from still to video caused a brief recurrence, then the video recovered to normal?

How do I "refresh" the a/c firmware please?

fansd556ffc7 Posted at 2017-10-5 04:48
How do I "refresh" the a/c firmware please?

Try restarting the aircraft and the remote. From there you may try through the Go App or through an SD card. Here is a link that will provide more information on this point:http://dl.djicdn.com/downloads/i ... e_Guide_en_v1.4.pdf

DJI-Mark Posted at 2017-10-5 12:09
Try restarting the aircraft and the remote. From there you may try through the Go App or through an SD card. Here is a link that will provide more information on this point:http://dl.djicdn.com/downloads/inspire_1/en/Firmware_Update_Guide_en_v1.4.pdf

How can I use the DJIGO App without the prompt from DJI to start a firmware upgrade? I thought that from now on, the SD card method could not be used on a PH3 Standard. Please advise as I am confused by conflicting instructions .....

Thanks in anticipation!

fansd556ffc7 Posted at 2017-10-5 23:57
How can I use the DJIGO App without the prompt from DJI to start a firmware upgrade? I thought that from now on, the SD card method could not be used on a PH3 Standard. Please advise as I am confused by conflicting instructions .....

Thanks in anticipation!

I am sorry, there is not a way to get around that. You would get that prompt until a firmware update is complete.

DJI-Mark Posted at 2017-10-6 06:32
I am sorry, there is not a way to get around that. You would get that prompt until a firmware update is complete.

I did a firmware update using the SD card method. This is the result:

[00022108]
========== 2014.01.01 00:00:22 remo-con disconnect======
[00022434]Packet: P3C_FW_V01.09.0200.bin [00022524]
[00039642]Upgrading ...
[00112193]Result: Success.
[00012108]
========== 2014.01.01 00:00:12 remo-con disconnect======
[00012389]Packet: P3C_FW_V01.09.0200.bin [00012486]
[00019293]Result: Abort.
The firmware on the SD card is identical to or older than the
current firmware on the aircraft.
[00012108]
========== 1970.01.01 00:00:22 remo-con disconnect======
[00012208]Packet: P3C_FW_V01.09.0200.bin [00012305]
[00018788]Result: Abort.
The firmware on the SD card is identical to or older than the
current firmware on the aircraft.
[00012108]
========== 2017.08.07 16:22:35 =====================
[00012383]Packet: P3C_FW_V01.09.0200.bin [00012480]
[00019111]Result: Abort.
The firmware on the SD card is identical to or older than the
current firmware on the aircraft.
[00012108]
========== 2014.01.01 00:00:12 remo-con disconnect======
[00012218]Packet: P3C_FW_V01.09.0200.bin [00012318]
[00018470]Result: Abort.
The firmware on the SD card is identical to or older than the
current firmware on the aircraft.

I flew again today - same loss of video on two occasions out of three. iPhone screen read "No Image Transmission Signal" Pretty obvious when you can't see the camera video image....

Not happy, I have done as DJI have requested to no avail, the fault is still present.

The system is unfit for purpose and I would like a return to DJI to fix the issue please, under the existing warranty.  

fansd556ffc7 Posted at 2017-10-6 08:32
I did a firmware update using the SD card method. This is the result:

[00022108]

Were you successful with the firmware update on the remote? The aircraft and remote have to match. Updating the app is also advising. Reinstall the app.

DJI-Mark Posted at 2017-10-6 08:42
Were you successful with the firmware update on the remote? The aircraft and remote have to match. Updating the app is also advising. Reinstall the app.

Were you successful with the firmware update on the remote? The aircraft and remote have to match. Updating the app is also advising. Reinstall the app.

My Answer:
I can't do a selective firmware update on the Ph3 Std RC other than through the App when prompted by a new release note - can I?
If it can still be done by micro SD card loading the aircraft firmware [.bin] file, please tell me how, as all the DJI videos I can find now show an RC controller with standard USB connection.

I have today updated the DJI GO App, which is, as before, V3.1.15. I did an IMU and Gimbal calibration with the PH3 Std on my desk and once again, the image Transmission failed to grey screen twice during the IMU calibration. The IMU and Gimbal calibrations were both successful according to my iPhone 6 display.

What next DJI??

fansd556ffc7 Posted at 2017-10-7 07:18
Were you successful with the firmware update on the remote? The aircraft and remote have to match. Updating the app is also advising. Reinstall the app.

My Answer:

Sorry, P3S couldn't update the firmware by an SD card actually. So now please provide me with the screenshot of the About on General Settings. When it is not the latest version or version info with -/+ icon means you need to update again, and the app will prompt you to do so. I'll have a check with it if a screenshot could be provided. Then you can also try to re-plug the pin cables of the gimbal.

DJI Thor Posted at 2017-10-7 23:43
Sorry, P3S couldn't update the firmware by an SD card actually. So now please provide me with the screenshot of the About on General Settings. When it is not the latest version or version info with -/+ icon means you need to update again, and the app will prompt you to do so. I'll have a check with it if a screenshot could be provided. Then you can also try to re-plug the pin cables of the gimbal.

Hi There, I have checked the gimbal connections as suggested, all seem ok, however I did re-make the grey WiFi Multi Pin Cable connector at the camera gimbal. I will fly later today and am anxious to see what happens this time...
Can't paste the "About" screenshot? But, this is what it shows:
APP  3.1.15
A/C   1.9.20
F/C Ser No  N/A

fansd556ffc7 Posted at 2017-10-8 02:56
Hi There, I have checked the gimbal connections as suggested, all seem ok, however I did re-make the grey WiFi Multi Pin Cable connector at the camera gimbal. I will fly later today and am anxious to see what happens this time...
Can't paste the "About" screenshot? But, this is what it shows:
APP  3.1.15

They are all in the latest version. Looking forward to your feedback.