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The mysterious "DJI.GIS" file. What is it for?
7420 12 2019-1-26
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Manitol
lvl.1
United States
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After 9-10 flights on my Mavic Air, I found that there is this 42MB file on the drone's SD card named DJI.GIS in a folder called \MISC\GIS. After spending about an hour on google, I'm surprised at how little information there is on it. One or two folks on various forums have asked the question, but no one has provide an answer that I can find. "GIS" is an acronym for Geographical Information Systems and seems to be a reference to software/format that maps or encodes video imagery for use in such a system. However google has almost no information on the specifics of DJI.GIS or what application uses it. The size of the file suggests that it combines gps geographical information with recorded video, but that just an educated guess.

Does anyone know what this file is for, and what feature or application use it?

Thanks


2019-1-26
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DJI Stephen
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Hello and good day Manitol. Thank you for the inquiry. This folder saves / stores system files for camera and cannot be deleted. The volume of this folder is stable and occupy only a little space. Thank you for your support.
2019-1-26
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Manitol
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DJI Stephen Posted at 1-26 15:42
Hello and good day Manitol. Thank you for the inquiry. This folder saves / stores system files for camera and cannot be deleted. The volume of this folder is stable and occupy only a little space. Thank you for your support.

Thank you for your reply. I guess I was hoping for a little more technical depth about that file's purpose. I did delete if off the SD card before I read your reply. It deleted without any issue and did not appear to affect video recording when I did a brief test flight afterward. I suspect that the drone's firmware will just create a new file to log data to if it cannot find an existing one. Pardon me for saying so, but I would not think that file is a system file for two reasons 1) it was stored on the external SD card, which would be a poor design choice for a critical system file, since there is no guarantee that an SD card will even be installed in the drone, or that a user won't replace an existing SD card with a new one with more capacity. 2) The file extension of ".gis" is a very specific choice with a specific meaning (Geographical Information Systems) recognized by a wider community outside DJI. A hex dump reveals that the header is "GIS". This file has all of the hallmarks of a data file, not a system file. If I had to guess, it would be that it is indeed a GIS file, but of some proprietary DJI format.I would surmise that it is storing flight tracks or some other form of location data; but I was hoping someone would know - cheers.
2019-1-26
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HereForTheBeer
Captain
Flight distance : 5381368 ft
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United States
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Manitol Posted at 1-26 17:42
Thank you for your reply. I guess I was hoping for a little more technical depth about that file's purpose. I did delete if off the SD card before I read your reply. It deleted without any issue and did not appear to affect video recording when I did a brief test flight afterward. I suspect that the drone's firmware will just create a new file to log data to if it cannot find an existing one. Pardon me for saying so, but I would not think that file is a system file for two reasons 1) it was stored on the external SD card, which would be a poor design choice for a critical system file, since there is no guarantee that an SD card will even be installed in the drone, or that a user won't replace an existing SD card with a new one with more capacity. 2) The file extension of ".gis" is a very specific choice with a specific meaning (Geographical Information Systems) recognized by a wider community outside DJI. A hex dump reveals that the header is "GIS". This file has all of the hallmarks of a data file, not a system file. If I had to guess, it would be that it is indeed a GIS file, but of some proprietary DJI format.I would surmise that it is storing flight tracks or some other form of location data; but I was hoping someone would know - cheers.

i believe it is part of the SDK and not specifically for the DJI go app and you probably correct about what it stands for.   probably for use with 3D telemetry based mapping solutions and applications that use the DJI SDK.  certain folders and files may get shared
2019-1-26
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GroTToFlyeR
First Officer
Flight distance : 1117372 ft
United States
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Manitol Posted at 1-26 17:42
Thank you for your reply. I guess I was hoping for a little more technical depth about that file's purpose. I did delete if off the SD card before I read your reply. It deleted without any issue and did not appear to affect video recording when I did a brief test flight afterward. I suspect that the drone's firmware will just create a new file to log data to if it cannot find an existing one. Pardon me for saying so, but I would not think that file is a system file for two reasons 1) it was stored on the external SD card, which would be a poor design choice for a critical system file, since there is no guarantee that an SD card will even be installed in the drone, or that a user won't replace an existing SD card with a new one with more capacity. 2) The file extension of ".gis" is a very specific choice with a specific meaning (Geographical Information Systems) recognized by a wider community outside DJI. A hex dump reveals that the header is "GIS". This file has all of the hallmarks of a data file, not a system file. If I had to guess, it would be that it is indeed a GIS file, but of some proprietary DJI format.I would surmise that it is storing flight tracks or some other form of location data; but I was hoping someone would know - cheers.

What ever files you delete from sd or phone will just re appear next time you open app and turn on craft and remote I believe
2019-1-26
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GroTToFlyeR
First Officer
Flight distance : 1117372 ft
United States
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Manitol Posted at 1-26 17:42
Thank you for your reply. I guess I was hoping for a little more technical depth about that file's purpose. I did delete if off the SD card before I read your reply. It deleted without any issue and did not appear to affect video recording when I did a brief test flight afterward. I suspect that the drone's firmware will just create a new file to log data to if it cannot find an existing one. Pardon me for saying so, but I would not think that file is a system file for two reasons 1) it was stored on the external SD card, which would be a poor design choice for a critical system file, since there is no guarantee that an SD card will even be installed in the drone, or that a user won't replace an existing SD card with a new one with more capacity. 2) The file extension of ".gis" is a very specific choice with a specific meaning (Geographical Information Systems) recognized by a wider community outside DJI. A hex dump reveals that the header is "GIS". This file has all of the hallmarks of a data file, not a system file. If I had to guess, it would be that it is indeed a GIS file, but of some proprietary DJI format.I would surmise that it is storing flight tracks or some other form of location data; but I was hoping someone would know - cheers.

What ever files you delete from sd or phone will just re appear next time you open app and turn on craft and remote I believe
2019-1-26
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JasonWilli
lvl.3

United States
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HI, I think you can try Stellar Photo Recovery software , Because I had try this software and see the advance feature here you can add any other file for recovery or repair if your file corrupt, lost or damaged. thanks
2019-5-6
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Hobbiebop
lvl.2

Netherlands
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Hi Manitol,

I guess you blew "DJI STEPHEN" completly away with you answer.  LOL!!!
2019-6-6
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Hobbiebop
lvl.2

Netherlands
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Manitol Posted at 1-26 17:42
Thank you for your reply. I guess I was hoping for a little more technical depth about that file's purpose. I did delete if off the SD card before I read your reply. It deleted without any issue and did not appear to affect video recording when I did a brief test flight afterward. I suspect that the drone's firmware will just create a new file to log data to if it cannot find an existing one. Pardon me for saying so, but I would not think that file is a system file for two reasons 1) it was stored on the external SD card, which would be a poor design choice for a critical system file, since there is no guarantee that an SD card will even be installed in the drone, or that a user won't replace an existing SD card with a new one with more capacity. 2) The file extension of ".gis" is a very specific choice with a specific meaning (Geographical Information Systems) recognized by a wider community outside DJI. A hex dump reveals that the header is "GIS". This file has all of the hallmarks of a data file, not a system file. If I had to guess, it would be that it is indeed a GIS file, but of some proprietary DJI format.I would surmise that it is storing flight tracks or some other form of location data; but I was hoping someone would know - cheers.

I own a Mavic 2 and the drone creates the dji.gis file on the internal AND external sdcard. I can also delete it witnout any problems. Its part of the NFZ software from DJI
2019-6-6
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fansa7f109f9
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Flight distance : 25764 ft
United States
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Hobbiebop Posted at 2019-6-6 02:19
I own a Mavic 2 and the drone creates the dji.gis file on the internal AND external sdcard. I can also delete it witnout any problems. Its part of the NFZ software from DJI

Does this mean there is something that you can add to this file to unlock everything?  I live by an airport and cant even takeoff indoors at my house.
2-27 18:31
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Lucas775
Captain
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DJI Stephen Posted at 2019-1-26 15:42
Hello and good day Manitol. Thank you for the inquiry. This folder saves / stores system files for camera and cannot be deleted. The volume of this folder is stable and occupy only a little space. Thank you for your support.

I've always wondered about that.
2-27 18:58
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ro_flyer
Captain
Flight distance : 5445161 ft
Brazil
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Manitol Posted at 2019-1-26 17:42
Thank you for your reply. I guess I was hoping for a little more technical depth about that file's purpose. I did delete if off the SD card before I read your reply. It deleted without any issue and did not appear to affect video recording when I did a brief test flight afterward. I suspect that the drone's firmware will just create a new file to log data to if it cannot find an existing one. Pardon me for saying so, but I would not think that file is a system file for two reasons 1) it was stored on the external SD card, which would be a poor design choice for a critical system file, since there is no guarantee that an SD card will even be installed in the drone, or that a user won't replace an existing SD card with a new one with more capacity. 2) The file extension of ".gis" is a very specific choice with a specific meaning (Geographical Information Systems) recognized by a wider community outside DJI. A hex dump reveals that the header is "GIS". This file has all of the hallmarks of a data file, not a system file. If I had to guess, it would be that it is indeed a GIS file, but of some proprietary DJI format.I would surmise that it is storing flight tracks or some other form of location data; but I was hoping someone would know - cheers.

I wonder why Stephen is so quiet now....
2-27 19:40
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TheGarnet
lvl.1

United States
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ro_flyer Posted at 2-27 19:40
I wonder why Stephen is so quiet now....

Should we send out a drone to look for Stephen?

I was just thinking about saving these dji.gis files before I reformat my cards....
8-5 12:31
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