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⚠️ Disable DJI Fly App "Autosync" NOW.
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3377 51 2-9 17:35
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grahamjohnson10
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If you want to protect your MM's warranty please disable the autosync setting in the DJI Fly App.

I have read a lot of posts in here about crashes and because the people involved have the autosync setting set to auto the .DAT flight log file is deleted from their device once it has synced with DJI's servers.

Once this has happened there is no way the customer has of accesing the data this very important file holds.

If you have disabled this setting then you can upload it to an online storage and then share the link in this forum so other forum users can find out what really was going on.

Without the file you have not got a leg to stand on because you have no evidence yourself, and you have to take DJI's word for what happened.


2-9 17:35
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deathsquad
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Interesting, I turned mine off.
2-9 19:03
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Lucas775
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Interesting indeed.
2-9 19:11
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JeremyFr79
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Funny I have autosync on and I was definitely able to pull logs after it synced with no issues on my android phone......
2-9 19:21
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emjhay
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I have mine auto and upon looking into the FlightRecord folder it is complete including sync from other mobile phone that has the DJI Fly app. I have no problems with mine.
2-9 19:28
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Debugger
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In which path should I find the .DAT file?

EDIT: Do you mean this?
\DJI\dji.go.v5\FlightRecord\MCDatFlightRecords\*.DAT

2-10 00:56
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virtual
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It is good to save DAT flight logs, I already disabled autosync. When I synced my first flights only txt logs left in my Android phone.
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2-10 01:25
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Durlano
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Debugger Posted at 2-10 00:56
In which path should I find the .DAT file?

EDIT: Do you mean this?

is your phone rooted?
2-10 01:58
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Debugger
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Durlano Posted at 2-10 01:58
is your phone rooted?

No, it's not rooted. Should it be?
2-10 02:02
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Durlano
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Debugger Posted at 2-10 02:02
No, it's not rooted. Should it be?

\DJI\dji.go.v5\FlightRecord\MCDatFlightRecords\*.DAT

i ment for this path (MCDatFlightRecords folder)
i can't see it on my phone because it is not rooted
2-10 02:09
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Debugger
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Durlano Posted at 2-10 02:09
\DJI\dji.go.v5\FlightRecord\MCDatFlightRecords\*.DAT

i ment for this path (MCDatFlightRecords folder)

I can see it normally when I connect it to my PC. (HUAWEI P20 Lite)
2-10 02:17
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hallmark007
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You should still have log on your phone, are you saying that dji are likely to forge or throw away your log for the manufacturing price of a mini ?

I think if they were up to those tricks and a disgruntled employee got wind of this, the company would be ruined, for the sake of a couple of hundreds bucks, not sure causing hysteria is the right thing here. And why would dji not apply same action to go4 or do they.

Yes if log is important to you then ask the question, but “You haven’t a leg to stand on” that’s a bit on the hysterical side.

Your implying there is something dodgy going on here, so maybe let us know what dirt you really have .
2-10 03:16
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Durlano
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Debugger Posted at 2-10 02:17
I can see it normally when I connect it to my PC. (HUAWEI P20 Lite)

well cant see on the pc either...nevermind
2-10 03:17
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grahamjohnson10
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JeremyFr79 Posted at 2-9 19:21
Funny I have autosync on and I was definitely able to pull logs after it synced with no issues on my android phone......

I'm talking about the .DAT files found in MCDatFlightRecords folder, not the .txt flight records.
2-10 03:25
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Labroides
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I have read a lot of posts in here about crashes and because the people  involved have the autosync setting set to auto the .DAT flight log file  is deleted from their device once it has synced with DJI's servers
I've read lots of bogus posts on this forum.
Have you tested to confirm this is accurate or are you just spreading a rumour?

Once this has happened there is no way the customer has of accesing the data this very important file holds.
Excuse my skepticism, but your alarmist tale just doesn't hold water.

If you have disabled this setting then you can upload it to an online storage and then share the link in this forum so other forum users can find out what really was going on.
Uh-huh ... can you point out any examples of someone unencrypting the .dat file fro a Mini and reading the flight data?

Without the file you have not got a leg to stand on because you have no evidence yourself, and you have to take DJI's word for what happened.
But even if the .dat file is lost, you still have the .txt file which you can share to investigate a flight incident.
2-10 03:26
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grahamjohnson10
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emjhay Posted at 2-9 19:28
I have mine auto and upon looking into the FlightRecord folder it is complete including sync from other mobile phone that has the DJI Fly app. I have no problems with mine.

I'm talking about the .DAT files in the MCDatFlightRecords folder not the .txt logs.
2-10 03:48
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grahamjohnson10
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hallmark007 Posted at 2-10 03:16
You should still have log on your phone, are you saying that dji are likely to forge or throw away your log for the manufacturing price of a mini ?

I think if they were up to those tricks and a disgruntled employee got wind of this, the company would be ruined, for the sake of a couple of hundreds bucks, not sure causing hysteria is the right thing here. And why would dji not apply same action to go4 or do they.

I'm not saying there is anything underhand going on more that there is a potential problem.

DJI have lately been hit by employee fraud https://www.engadget.com/2019/01 ... XXyaZ8sd12p9phgMfKk

It's also odd that the .DAT log in the drone is encrypted so only DJI can read it.   
2-10 03:55
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hallmark007
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That’s over a year ago, and as long as I’ve been here I’ve not seen any funny business going on, just thought, “you haven’t a leg to stand on” was a bit over the top.
I expect they don't want it falling into the hands of other companies or being tampered with. But I'm certain that no company would risk their good name over the price of a tiny drone .
2-10 04:07
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Labroides
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grahamjohnson10 Posted at 2-10 03:48
I'm talking about the .DAT files in the MCDatFlightRecords folder not the .txt logs.

I'm talking about the .DAT files in the MCDatFlightRecords folder not the .txt logs.
That was quite clear and makes no difference to my comments.
Read them again to save me from typing them again.
2-10 04:18
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Labroides
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DJI have lately been hit by employee fraud
Why did you throw that in?
How is it relevant?

You haven't made any attempt to link it to your tale.

It's also odd that the .DAT log in the drone is encrypted so only DJI can read it.
If you know it's encrypted, why did you suggest you could get someone to analyse it?
What use would it be to the user at all?
That sort of torpedoes your conspiracy theory, doesn't it?

The .dat file for the Mavic 2 is also encrypted ... is that odd too?

It could be suggested that since it can be used to authenticate warranty claims, DJI want to ensure it isn't manipulated, perhaps?
When you want to spread a conspiracy theory, it's always a good idea to make sure it stands up to intelligent inquiry.
2-10 04:25
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frankymusik
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grahamjohnson10 Posted at 2-10 03:55
I'm not saying there is anything underhand going on more that there is a potential problem.



Please excuse! Did I miss something?

The "DatCon" software converts exactly these DAT files into a readable data format, doesn't it?
I already used it for my flight data and was amazed that it contained more information ...

Now I'm a bit confused...

Frank
2-10 08:36
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hallmark007
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frankymusik Posted at 2-10 08:36
Please excuse! Did I miss something?

The "DatCon" software converts exactly these DAT files into a readable data format, doesn't it?

You should be, because in your own thread you specifically mention uploading your log information to dji, then and it was after this that you produced log for others, what op is saying here is, that’s not possible, so yes very strange indeed or maybe all your information was garnered through txt file .
2-10 08:50
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grahamjohnson10
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frankymusik Posted at 2-10 08:36
Please excuse! Did I miss something?

The "DatCon" software converts exactly these DAT files into a readable data format, doesn't it?

What I have noticed is once the DJI Fly app has synced the flight logs to DJI the .DAT files in the MCDatFlightRecords folder are deleted.

These .DAT files hold a lot of information that is not available in the .txt flight logs.  
In another thread it looks like the OP had autosync enabled and therefore had no .DAT file which would of given a lot more info into his problem.

I wanted to see what the barometer and GPS where saying about the height, aswell as other things.

We won't be able to find out this reported problem of uncomanded ascent / decent without the .DAT.

2-10 09:10
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JJB*
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frankymusik Posted at 2-10 08:36
Please excuse! Did I miss something?

The "DatCon" software converts exactly these DAT files into a readable data format, doesn't it?

Hi Franky,

DAT file for a MM located on a mobile device is de-cryptable.
Never tried to decrypt a  MM DAT file stored in the MM itself.

cheers
JJB
2-10 09:24
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grahamjohnson10
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JJB* Posted at 2-10 09:24
Hi Franky,

DAT file for a MM located on a mobile device is de-cryptable.

I have googled about the MM located .DAT and it doesn't look like anyone has managed to decrypt it.
2-10 09:36
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frankymusik
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JJB* Posted at 2-10 09:24
Hi Franky,

DAT file for a MM located on a mobile device is de-cryptable.

Thank you for clarifying this to me newbee!

Frank
2-10 12:39
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GaryDoug
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JJB* Posted at 2-10 09:24
Hi Franky,

DAT file for a MM located on a mobile device is de-cryptable.

Is there a dat file on the drone itself? I certainly cant find one. Is it hidden?
2-10 20:41
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Neoner
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Durlano Posted at 2-10 03:17
well cant see on the pc either...nevermind

That's because Huawei can see everything you do by design so the Chinese Government can control you.
2-11 09:50
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grahamjohnson10
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GaryDoug Posted at 2-10 20:41
Is there a dat file on the drone itself? I certainly cant find one. Is it hidden?

No it's not hidden, you have to hook up the MM via USB to your computer and download it using the assistant2 software.

There is no point doing so because you can't read it, only DJI can read it.
2-11 18:19
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grahamjohnson10
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Neoner Posted at 2-11 09:50
That's because Huawei can see everything you do by design so the Chinese Government can control you.

I know this is a little off topic but no one has found a direct link in the code directing information to the chinese government.

The problem is the code is very badly written and susceptible to hackers to exploit.


2-11 18:23
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GaryDoug
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grahamjohnson10 Posted at 2-11 18:19
No it's not hidden, you have to hook up the MM via USB to your computer and download it using the assistant2 software.

There is no point doing so because you can't read it, only DJI can read it.

What I meant by hidden is that it may be hidden to a Windows machine using windows explorer. I have two minis with two controllers and have flown both lately and do not have any autosync set. But I see no .dat files on the drones, only on the phone. As for the DJI Assistant, I have never gotten it to work for transferring files.

I have done a little work with decyphering closed data files before. I might give this a try if I can get the files. Do we know if there is more data there than in the .dat files on the phone/tablet?

2-11 19:03
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Jim_H
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so?
should i autosync or dont autosync?
I'm using an iphone...
2-11 22:20
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Debugger
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Yesterday, when I read this topic I tried to find and backup these .DAT files. I noticed that that there were files only from 2020-01-19 until yesterday. No the older files (from 2020-01-03 when I got the mini).
As far as now I used to sync my flights record always after my flights. I try to remember what I change that day (2010-01-19), and the only change I made was to turn on the subtitles in the fly app.

I check all my original video files from 2020-01-03 to 2020-01-18 in VLC player and no one has subtitles (and .DAT files). All my files from 2020-01-19 until now, they DO have subtitles AND the .DAT file.

I'll turn off the subtitles to my next flight to see if it will be crate a .DAT file or not.

Can anybody else do this check?
2-12 00:01
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Debugger
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Maybe the existance of the .DAT files has to do with if the subtitles in the fly app is ON or OFF and not with the auto sync
2-12 00:04
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hallmark007
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Neoner Posted at 2-11 09:50
That's because Huawei can see everything you do by design so the Chinese Government can control you.

That’s the kind of hysteria these threads cause, I would say the Chinese government have nothing better to do all day than watch your Mavic mini videos, sounds about right .
2-12 02:46
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grahamjohnson10
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Jim_H Posted at 2-11 22:20
so?
should i autosync or dont autosync?
I'm using an iphone...

Disable autosync.
2-12 03:33
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hallmark007
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grahamjohnson10 Posted at 2-11 18:23
I know this is a little off topic but no one has found a direct link in the code directing information to the chinese government.

The problem is the code is very badly written and susceptible to hackers to exploit.

What hackers have exploited it ? We know that almost 3 years ago dji was hacked but they then put in place some system to avoid further hacking.

So easy to say, do you know this for certain or did you just make it up ?
2-12 03:38
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virtual
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Debugger Posted at 2-12 00:04
Maybe the existance of the .DAT files has to do with if the subtitles in the fly app is ON or OFF and not with the auto sync

Can not confirm yet, but I believe I had subs on and only txt log left on android phone...
2-12 03:38
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Guorium
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I turned auto sync off and I started seeing dat files stored in the folder. But then I turn on auto sync, the files are still here... Maybe if I wait another day.
2-12 04:07
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grahamjohnson10
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GaryDoug Posted at 2-11 19:03
What I meant by hidden is that it may be hidden to a Windows machine using windows explorer. I have two minis with two controllers and have flown both lately and do not have any autosync set. But I see no .dat files on the drones, only on the phone. As for the DJI Assistant, I have never gotten it to work for transferring files.

I have done a little work with decyphering closed data files before. I might give this a try if I can get the files. Do we know if there is more data there than in the .dat files on the phone/tablet?

Hi Gary here is a link to the DAT file from the MM, good luck I would love to hear you can open it.

https://drive.google.com/file/d/ ... NH/view?usp=sharing
2-12 09:33
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