ricom831 Posted at 2017-4-6 00:26
I have a couple of units to work on this weekend - I will take pictures and write up some detail on how to flash the unit - I am also willing to repair units for a small cost if that's helps folk.

That's great to here! Finally an solution! I'll wait for your tutorial. Thanks a lot!

Hi, is it possible that the wifi module responds to pings although fried? If it was only a ribbon cable for example I should have gotten GPS info on the mobile I believe.. and I don't..  having the exact same issue as described here:

http://forum.dji.com/forum.php?m ... D370%26typeid%3D370

Now I really don't know if it is ribbon cable or wifi module

fansaabfbc93 Posted at 2017-4-16 11:42
Hi, is it possible that the wifi module responds to pings although fried? If it was only a ribbon cable for example I should have gotten GPS info on the mobile I believe.. and I don't..  having the exact same issue as described here:

http://forum.dji.com/forum.php?mod=viewthread&tid=6478&extra=page%3D1%26filter%3Dtypeid%26typeid%3D370%26typeid%3D370

I'm based in the UK and think I have the same corrupt NAND flash issue on my P2V+, I have a USB to serial port adapter so I'm very interested to see what the recovery procedure to reprogram the NAND flash in the Wi-Fi module is.

I am very eager to see that as well It is probably clear from the dozens of questions I asked on the forum )  I do have this adapter as well but we might be fu***d on a hardware level. I still struggle to determine if this is indeed issue with the wifi-module, since I can ping all the 3 IPs. I'll try to go over the bypassing procedure today. Worst case scenario in my case would be a broken wifi module + broken ribbon cable and/or gimbal board - will make troubleshooting much harder.
I tend to think I have the wifi-module failure since otherwise I would have seen telemetry on the mobile but on the other hand - I can not take pictures by pressing the button on the gimbal and the camera is not recognized by the PC when connected via USB cable..  damn situation
What exactly are your symptoms? Not able to ping one of the IPs or same as mine?

fansaabfbc93 Posted at 2017-4-17 04:20
I am very eager to see that as well  It is probably clear from the dozens of questions I asked on the forum )  I do have this adapter as well but we might be fu***d on a hardware level. I still struggle to determine if this is indeed issue with the wifi-module, since I can ping all the 3 IPs. I'll try to go over the bypassing procedure today. Worst case scenario in my case would be a broken wifi module + broken ribbon cable and/or gimbal board - will make troubleshooting much harder.
I tend to think I have the wifi-module failure since otherwise I would have seen telemetry on the mobile but on the other hand - I can not take pictures by pressing the button on the gimbal and the camera is not recognized by the PC when connected via USB cable..  damn situation
What exactly are your symptoms? Not able to ping one of the IPs or same as mine?

My symptoms are loss of the FPV, i.e., black screen. Telemetry is all fine just no FPV. I cannot ping IP address 192.168.1.10 which is the bottom PCB in the Wi-Fi module, so I'm hoping the NAND flash reprogramming will fix the problem as and when we get the procedure through.

Your issue is pretty clear then and you should be able to fix it. I belive the procedure is described in a link earlier on this thread.. but you know this already for sure. Good luck!!!

fansaabfbc93 Posted at 2017-4-17 08:50
Your issue is pretty clear then and you should be able to fix it. I belive the procedure is described in a link earlier on this thread.. but you know this already for sure. Good luck!!!

Yes I hope so.

ricom831 - any luck with putting your pictures & instructions together to fix this issue?

Thanks in advance

Ricom, I know that writing a guide is a pain in the @.., but I'm pretty sure that many of us are ready to donate for your effort if you'll give us a brief explaination on how to fix that crappy module..

isiden Posted at 2017-4-18 05:13
Ricom, I know that writing a guide is a pain in the @.., but I'm pretty sure that many of us are ready to donate for your effort if you'll give us a brief explaination on how to fix that crappy module..

Count me in for that

im new how do i go about posting in forum it will not let me?

Hi all,

Today I dismantled my P2V+ Wi-Fi module to take a look at the bottom PCB (WM301_DM368). The upgrade process described in this thread (http://www.phantompilots.com/thr ... sistant-tool.77073/) is for the DJI Lightbridge unit, which ricom831 also said works for the P2V+ Wi-Fi module. There are lots of photo's in the thread of where to connect the necessary equipment to the Lightbridge PCB but none that I have found so far that show where to connect this equipment to the WM301_DM368 PCB. So if anyone on this thread knows of any pictures of where the connections need to be made to the WM301_DM368 PCB (specifically the UART RX and TX pins and the strap pin for the BSEL) could you please reply. Armed with these 3 key bits of information I will be able to reprogram the NAND flash on my PCB and if successful I'll then happily put some instructions together for everybody.

Thanks

The "lightbridge firmware PROBLEM" thread over at PhantomPilots worked for me.  Start with post #344 for a photo of Phantom_p3's P2V board with pins/pads marked.

A few people mentioned using dm6467_297_ubl.bin rather than ubl1_editedByGaucho.img, but that did not work for me.  For power, I connected my board to the regular P2V connector rather than using a separate power source.

Good luck everyone.

Thanks PTCruiserGT, the picture was the key piece of information I was missing. Looks like DJI have 2 different versions of the same PCB - one with the PCB silkscreen and one without. My PCB is the one without the silkscreen so the picture really helped. I've confirmed today that my Wi-Fi module is suffering from the NAND flash issue since the serial port debug confirms this. The next step is to see if it can be recovered by reprogramming the NAND flash image. Will keep everyone updated.

Freindship7 Posted at 2017-4-19 11:53
Thanks PTCruiserGT, the picture was the key piece of information I was missing. Looks like DJI have 2 different versions of the same PCB - one with the PCB silkscreen and one without. My PCB is the one without the silkscreen so the picture really helped. I've confirmed today that my Wi-Fi module is suffering from the NAND flash issue since the serial port debug confirms this. The next step is to see if it can be recovered by reprogramming the NAND flash image. Will keep everyone updated.

Hi all. I have put my Wi-Fi module back together this morning and can confirm that I now have FPV working again in the DJI Vision app, which is good news. I will perform a test flight later today. I'm now in the process of writing up a document to share with everyone the procedure that you need to go through to reprogram the NAND flash in the Wi-Fi module - please bear with me as there is lots of detail that needs to go into this. The procedure can be easily undertaken if you are confident with making modifications to electronic PCBs.

Excellent news Freindship7. Looking forward to seeing your guide.

Freindship7 Posted at 2017-4-20 01:15
Hi all. I have put my Wi-Fi module back together this morning and can confirm that I now have FPV working again in the DJI Vision app, which is good news. I will perform a test flight later today. I'm now in the process of writing up a document to share with everyone the procedure that you need to go through to reprogram the NAND flash in the Wi-Fi module - please bear with me as there is lots of detail that needs to go into this. The procedure can be easily undertaken if you are confident with making modifications to electronic PCBs.

Well i hope I can fixed this my own, Or  someone in the Netherlands who can do the job.

fanscbe0e7d3 Posted at 2017-4-20 03:22
Well i hope I can fixed this my own, Or  someone in the Netherlands who can do the job.

Hi all, flight test this evening was successful and its great to have FPV back. I'm now in the process of putting the repair document/instructions together and will aim to get this posted as soon as possible.

Freindship7 Posted at 2017-4-20 10:46
Hi all, flight test this evening was successful and its great to have FPV back. I'm now in the process of putting the repair document/instructions together and will aim to get this posted as soon as possible.

Awesome news, Freindship7!
Thanks for all your efforts.
Steve

Hi all, I've attached the recovery procedure here that I used to restore FPV on my P2V+. Hopefully you all find this useful. If you have any queries with the information in the document then I'm happy to help. Good luck with fixing your Wi-Fi modules!

Freindship7 Posted at 2017-4-21 02:19
Hi all, I've attached the recovery procedure here that I used to restore FPV on my P2V+. Hopefully you all find this useful. If you have any queries with the information in the document then I'm happy to help. Good luck with fixing your Wi-Fi modules!

Just in case anyone is wondering the firmware versions I am running on the P2V+ are:

DJI Vision app (android): 1.0.61
P2V+ main controller: 3.14
P2V+ GPS: 6.0.1.6
P2V+ receiver-5.8G: 1.0.1.3
P2V+ P330CB: 1.0.2.10
P2V+ battery: 1.0.0.9
P2V+ zen IMU: 1.0.0.6
RC system: 1.0.2.31
Camera: 1.3.0g

Freindship7 Posted at 2017-4-21 02:19
Hi all, I've attached the recovery procedure here that I used to restore FPV on my P2V+. Hopefully you all find this useful. If you have any queries with the information in the document then I'm happy to help. Good luck with fixing your Wi-Fi modules!

Hi friend,
many thanks for your work.
Can i apply this recovery procedure for P2V (egg camera) too?

fans76590968 Posted at 2017-4-21 05:45
Hi friend,
many thanks for your work.
Can i apply this recovery procedure for P2V (egg camera) too?

Hi fans76590968, to be honest I don't know. I am not familiar with the Wi-Fi module in the P2V so I'm not sure, apologies.

los comentarios es que con los ultimos phanton sucederá lo mismo segun información robada al fabricante, programados para actualizar equipos, es decir mayores ventas con perjuicio de compradores

wendle Posted at 2017-1-28 11:59
So was this corrupt naad there the whole time or was it brought out by this update. I hear people talking about . I'm avoiding any updates to my p2v that I just got new.

Los comentarios Es Que con los ultimos phanton sucederá Lo Mismo segun information robada al fabricante, Programados para Actualizar equipos, es factible de Mayores Ventas para dji  con PERJUICIO de los  Compradores

The comments Is that with the last phanton will happen The same according to information stolen to the manufacturer, Scheduled to Update equipment, it is feasible of Major Sales for dji with BUYERS 'INJURY

The comments Is that with the last phanton will happen The same according to information stolen to the manufacturer, Scheduled to Update equipment, it is feasible of Major Sales for dji with BUYERS 'INJURY

Northofthe49th Posted at 2016-3-17 05:52
Check the cables around the base of the gimbal, they are most often the culprit as they have been a bit prone to come loose, especially in a hard landing or someting....

The comments Is that with the last phanton will happen The same according to information stolen to the manufacturer, Scheduled to Update equipment, it is feasible of Major Sales for dji with BUYERS 'INJURY

gs@fotosintesi. Posted at 2016-3-21 09:52
I have the same problem from a couple of week...I can see through the app 1 time on 10, more or less...
I've checked drone connectors and are all ok and I never had hard landing, crash or other damages....I'm really going crazy...I don't know what to do...
The problem seems to go from bad to worse  day by day....initially the problem occurs only once in a while, now are more times than not works of those works!!

The comments Is that with the last phanton will happen The same according to information stolen to the manufacturer, Scheduled to Update equipment, it is feasible of Major Sales for dji with BUYERS 'INJURY

geoff.b.faulkne Posted at 2016-3-24 20:48
all good advice. I had the same problem but could not resolve. Returned to seller who forwarded to DJi with wifi card problem. Everything worked ok just no vision on my phone

The comments Is that with the last phanton will happen The same according to information stolen to the manufacturer, Scheduled to Update equipment, it is feasible of Major Sales for dji with BUYERS 'INJURY

Paul007uk Posted at 2017-3-4 22:21
Hi ricom831 could you help me with the flash for the wifi module bottom board. I cant find anywhere in the uk with the part in stock and am being told they no longer make them so this is my only hope of a fix. Any help you could give me would be appreciated thanks.

The comments Is that with the last phanton will happen The same according to information stolen to the manufacturer, Scheduled to Update equipment, it is feasible of Major Sales for dji with BUYERS 'INJURY

dilangthang Posted at 2017-2-27 20:23
dear sir,
I'm checked:
ping 192.168.1.2 : ok

The comments Is that with the last phanton will happen The same according to information stolen to the manufacturer, Scheduled to Update equipment, it is feasible of Major Sales for dji with BUYERS 'INJURY

Anyone else here not able to view the file on dji forum site.  It keeps kicking me out and i would love to know the secret and try it out.  Maybe they blocked it due to the fact that we wouldn't have to buy the newer birds now.  

William516 Posted at 2017-4-21 08:45
Anyone else here not able to view the file on dji forum site.  It keeps kicking me out and i would love to know the secret and try it out.  Maybe they blocked it due to the fact that we wouldn't have to buy the newer birds now.

Willian516, hope that is not the case. Is there any way you can send me a private message with your email address and I'll send it to you? Sorry not that familiar with the forum yet.

Another stupid question but if this fixes the problem This then proves that dji is responsible for the entire problem.  Not crash related or any other step they came up with.  Also assuming you store your bird away for a period of time the whole thing would occur again.  It should not be proven to dji that THEY are responsible and should be held liable to fix the issue at their own cost.  Just like recalls on vehicles.  There is no way that this many people messed with internal software programming and caused this.  It is a failure on dji and I would like to, for once see the company stand up and take responsibility and fix their mistake.  How about dji mandatory recall for your phantom 2 birds??m

If not then don't expect many of us to continue to purchase your products anymore.

Freindship7 Posted at 2017-4-21 02:19
Hi all, I've attached the recovery procedure here that I used to restore FPV on my P2V+. Hopefully you all find this useful. If you have any queries with the information in the document then I'm happy to help. Good luck with fixing your Wi-Fi modules!

Hello, I have no right to download an attachment.    Will anyone be kind and send me an email? I have a bird not seen (FPV), everything else is OK. Please help. Thanks [url]http://ok1mhk.blogspot.cz/[/url] e-mail
petr.vanekDJI@gmail.com     

I think he may need to put it on another sote if possible.  I honestly think dji forums are blocking it.  Not sure why but I had the same problem.  He sent it to me via email and I'm thankfull for that.  However the vast amount of people that will want this information would overload him and his email lol.

William516 Posted at 2017-4-21 11:12
I think he may need to put it on another sote if possible.  I honestly think dji forums are blocking it.  Not sure why but I had the same problem.  He sent it to me via email and I'm thankfull for that.  However the vast amount of people that will want this information would overload him and his email lol.

I still have the address jan.kuba@proservia.cz
Will anyone be good to send me the pdf?
I thank you in advance
Diagnostics and Recovery of DJI P2V Wi-Fi module.pdf

I will give my experience here. I have programmers Atmel, PIC, I have HAM equipment I just do not proceed :-(

Guys, anyone has the PDF and the firmware needed to do the reset on the NAND? I can post it on another website for everyone who's having the same problem. My P2V+ was on the shelf for around 6 months, now I got no image on FPV, no answer on ping from 192.168.1.10.

If anyone can send me the files, my email is andretomasi@me.com

petr.vanekDJI Posted at 2017-4-21 11:22
I still have the address
Will anyone be good to send me the pdf?
I thank you in advance

Hi again all. Sorry that so many of you cannot download the pdf, I don't understand why this is but I'll have to upload it somewhere else and send a link.

Friendship7 Posted at 2017-4-21 11:55
Hi again all. Sorry that so many of you cannot download the pdf, I don't understand why this is but I'll have to upload it somewhere else and send a link.

Here is the link to the file:

http://www.filedropper.com/diagn ... hedjip2vwi-fimodule

<a href=http://www.filedropper.com/diagnosingandrecoveringthedjip2vwi-fimodule><img src=http://www.filedropper.com/download_button.png width=127 height=145 border=0/></a><br /><div style=font-size:9px;font-family:Arial, Helvetica, sans-serif;width:127px;font-color:#44a854;> <a href=http://www.filedropper.com >file storage</a></div>