Sean-bumble-bee Posted at 10-10 05:58
Really, how wonderful it must be to have your insight into what other people are thinking.
If you are correct then why didn't the op just repeat that a closed throttle did not cause a descent ?
To my mind " force landing  command" seems an odd way to express the idea of holding the throttle closed when they have already mentioned that up and down stick had no affect on the drone's ascent.

If you are correct then why didn't the op just repeat that a closed throttle did not cause a descent ?
He covered that when he said:  NOTHING stopped its ascent.

To my mind " force landing  command" seems an odd way to express the idea of holding the throttle closed when they have already mentioned that up and down stick had no affect on the drone's ascent.
That it seems odd to you means nothing.
Much of the gibberish you clutter this forum with daily seems odd.
It's already been pointed out to you, that he wasn't talking about pulling the left stick down.
If the OP had tried everything else without being able to stop the drone's runaway ascent, it's logical that he would have thought this might force a descent.

***  crickets   ***

BudWalker Posted at 10-10 05:08
@Chien
The .dat logs you provided aren't the right ones. The ones we want are in the MCDatFlightRecords folder. I.e., the folder requested by the moderator. Can you provide that folder via GoogleDrive?

Sorry for the late reply here, am traveling at the moment. DJI also wrote to me privately asking for the MCDatFlightRecords folder, but I'm having some trouble finding the relevant files. The MCDatFlightRecords folder that I found on my phone only contains a few files from 2016-2018. How do I access the more recent files? I'm using DJI GO 4. Thanks for your advice on this.

Chien Posted at 10-12 12:53
Sorry for the late reply here, am traveling at the moment. DJI also wrote to me privately asking for the MCDatFlightRecords folder, but I'm having some trouble finding the relevant files. The MCDatFlightRecords folder that I found on my phone only contains a few files from 2016-2018. How do I access the more recent files? I'm using DJI GO 4. Thanks for your advice on this.

Do you have sync switched on in the Go4 app. If so then there is a fair chance the recent DATs have been deleted.
If so, they are gone ...... for good. Sorry about that.

With you having said "phone", what model of RC1* do you use?
If the RC1B then, from memory, they do not create DATson the phone.  :-(((((((((

Sean-bumble-bee Posted at 10-12 13:19
Do you have sync switched on in the Go4 app. If so then there is a fair chance the recent DATs have been deleted.
If so, they are gone ...... for good. Sorry about that.

Ah that makes sense now. Yes, I'm using the RC1B, and those old DATs were probably from my old Phantom 4 Pro, not the Mavic. I still have the RC1B, is there any way to retrieve the DATs from this if I connect to it now?

Chien Posted at 10-12 20:30
Ah that makes sense now. Yes, I'm using the RC1B, and those old DATs were probably from my old Phantom 4 Pro, not the Mavic. I still have the RC1B, is there any way to retrieve the DATs from this if I connect to it now?

I think the names of DATs from the P4 take the form of "FLYxyz.DAT".
Whereas the names of DATs from the Mavic 2 series DO have the form 'date-time-FLYxyz.DAT'.

With regards to recovering DATs from the RC1B.
I doubt that there is much/any chance unless you know some computer whizz kid that can get into the file system of the RC1B and have a look around.
Even then I don't know if the RC1* have memory for such storage.
Sorry about that.

To be honest I am a little dismayed that, having seen the txt flight logs, DJI asked for the DATs from your phone.
The .txt includes the controller's serial number and, from that, I would have thought that they can identify its model.


That the RC1B does not create DATs was 'discovered' sometime ago on the MavicPilots forum and from memory several members confirmed this happened with their RC1B controllers.
It certainly happens/ed with mine which it why I bought an RC1A and use the RC1B as a secondary and/or backup controller.
From memory, the secondary controller does not create ANY logs whatsoever on the phone attached to it but I had a few flights with the RC1B as the primary, both before and after getting and RC1A, and none of those flights created a DAT on the phone that was attached to the RC1B.

Taking the 'discovery' to be true I am surprised DJI didn't realise that you would have no DATs on your phone.
Perhaps you could question them about there asking you for the DATs.

UNLESS they know of some way of accessing the controller's file system and finding any DATs that might exist on it and are prepared to pass that information on to you ???????

[ Last edited by Chien In 2024-10-16 01:31 Editor ]\n\nSean-bumble-bee Posted at 10-12 23:44
I think the names of DATs from the P4 take the form of "FLYxyz.DAT".
Whereas the names of DATs from the Mavic 2 series DO have the form 'date-time-FLYxyz.DAT'.


Thanks again for the detailed explanation, this is very helpful. Yes, I'm surprised that the DJI technician didn't ask me which controller I was using. I've sent them an email but so far haven't received a reply.

Not sure if it's worth holding on to the RC1B at this point - I'm due to sell it secondhand tomorrow, along with the other remaining parts from the kit.

I'm attaching here a screenshot of the DAT folder contents. Given those dates it must be the P4, since I didn't purchase the Mavic until 2019.

Chien Posted at 10-16 01:28
[ Last edited by Chien In 2024-10-16 01:31 Editor ]\n\nSean-bumble-bee Posted at 10-12 23:44
I think the names of DATs from the P4 take the form of "FLYxyz.DAT".
Whereas the names of DATs from the Mavic 2 series DO have the form 'date-time-FLYxyz.DAT'.

Ah, then I guess that either DJI changed the naming scheme for the  DATs of the P4 or the the owner of the P4 DATs that I have edited out the date/time stamp.

Have you considered buying a second hand m2p even if it came with a controller ? Though if only complete sets are available I would at least try to find one with an RC1A controller. They remain a good drone and upgrading to a more recent model might be expensive.

Sean-bumble-bee Posted at 10-16 03:51
Ah, then I guess that either DJI changed the naming scheme for the  DATs of the P4 or the the owner of the P4 DATs that I have edited out the date/time stamp.

Have you considered buying a second hand m2p even if it came with a controller ? Though if only complete sets are available I would at least try to find one with an RC1A controller. They remain a good drone and upgrading to a more recent model might be expensive.

Yes, I did consider it. But in the end I figured it would be a good time to consider upgrading to a newer model. I've got insurance on the m2p - one of the reasons I've been trying to determine the cause of the flyaway incident was to show in my claim that it was not due to user error or negligence.

Chien Posted at 10-17 03:29
Yes, I did consider it. But in the end I figured it would be a good time to consider upgrading to a newer model. I've got insurance on the m2p - one of the reasons I've been trying to determine the cause of the flyaway incident was to show in my claim that it was not due to user error or negligence.

fair enough.

Chien Posted at 10-17 03:29
Yes, I did consider it. But in the end I figured it would be a good time to consider upgrading to a newer model. I've got insurance on the m2p - one of the reasons I've been trying to determine the cause of the flyaway incident was to show in my claim that it was not due to user error or negligence.

I like that plan.  Keep flying brother!

stuck an AirTag on mine to help for just this reason.

Captain Props Posted at 11-1 15:40
stuck an AirTag on mine to help for just this reason.

Great idea. Unfortunately, we're almost always flying in remote rainforest areas where there is no phone signal and the terrain is difficult to traverse, so I'm not sure I would be able to relocate the drone even with an AirTag.