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Bin4ry

Remove CE limits from DJI products and other fun stuff in DJI Go4

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Slippy   
On ‎2017‎-‎08‎-‎24 at 4:57 AM, Tanos said:

Is there any chance modifying the bitrate of the Mavic?

I looked and looked and looked some more through the apk and while there are most certainly many references to bitrate, not a single one of them indicated that the bitrate details are part of the apk itself, which suggests to me that it is in the firmware.

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Bin4ry   
6 hours ago, oakman said:

2.5km is a lot though probably not very useful on a daily basis since you probably have barely enough to get back!I top out at 1.5k which is fine. 

Don't get the region warning oddly enough, maybe the FCC patch that I never removed works now! 

Yeah the range is not very useul that's right 😁 but it's interesting to test though. I get to 2km and back very good on one battery But if there would be strong winds you will get a problem getting home, so I did not have enough courage to fly further away.

21 minutes ago, Slippy said:

I looked and looked and looked some more through the apk and while there are most certainly many references to bitrate, not a single one of them indicated that the bitrate details are part of the apk itself, which suggests to me that it is in the firmware.

Did not look into this yet. Maybe ask in the slack channel. I think there were some posts regarding this.

Best Regards

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Aladin   

Hello everybody

I'm a French Mavic owner and I would like to share some information with you.

Before buying my Mavic, I sent many emails to DJI in order to know whether the CE limitation was soft, hard or both. It was very difficult to get an answer but they finally said answered "both" (I have an email from them). Thus, I decided to buy my Mavic in the US not to have the "hard" limitation when I travel outside Europe. On the back of my remote controller, it is written FCC whereas it is written CE for a drone bought in France.

As said I leave in France under CE limitation, and my flying range is about 2.5km at home in a medium dense wifi area and without any modification or hack (DJI GO 4 4.1.5.3 and Mavic firmware .900). One month before, I have been able to fly as far as 3.5km in a US desert area (in sport mode, you can reach this distance, spend 5mn to take pictures or film and come back even with a little wind and land with 15% battery left)

Last weak, I discovered this forum and I tried the modified 4.1.3 DJI GO 4 version after having verified I was in "US" mode. I did not see any real range improvement at home.

What do you think about it ? Could the range effectively be a combination of soft and hard limitation ?

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JeeHaa   

Just to report that Spark with the latest .600 FW (RC=.400), the FCC patch still works. I use the modded 4.1.3 GO app to set FCC on one Android device and then use my other daily phone with the official 4.1.5 to fly. Without OTG and on 5.8GHz I got to at least 900m without any connection issues. In CE mode the "weak image" warnings start at about 150m.

Edited by JeeHaa

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Grievous   

Hi guys !

Thanks to the information collected on this forum, I'm able to use FCC mode (still working after the last DJI updates) on my SPARK. I use it with pretty good results.

One question: did someone here already test the ''FCC boost'' Mode on a SPARK ?

 

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Neelix   

30272586be.jpgHi everyone!

I'm am a new member here, thank you for the good work so far. I have some questions about the patchapk.exe

I run it as administrator.

First: When i click file --> apk version--> 4.1.8 ist dosent stay there. if i try it again to check ist still stays on 4.1.3.  i cant choose 4.1.8

During Patch i have an issue. It says: 

Error: Assertion failed: hunk, file ../patch-2.5.9-src/patch.c, line 354

This application has requested the Runtime to terminate it in an unusual way. Please contact the applications support team for more information.

I use dji version 4.1.8 from apk mirror and changed the name to orig.apk.

 

at the windows command line it works well, but i cant choose the version ( like 4.1.3 or 4.1.8 )

 

ca anyone please help me?

 

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Bin4ry   

That was my fault. In the bat and sh script the APK version gets selected automatically for the windows app: resynchronize now I fixed the error!

 

Best Regards

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Neelix   

Ok, thank you ! The bat Version works fine, i use this for patching.

the apk version select works now in the windows version, thanks ! But i still get that error when i try to patch:

 

......

<-------------- Decompile Complete ----------->

<-------------- Begin Patch -------------->

Applying Patch: forceFCC


Result: patching file smali_classes3/dji/apppublic/reflect/AppPublicReflect.smali


Error: Assertion failed: hunk, file ../patch-2.5.9-src/patch.c, line 354

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.


<-------------- Patch Complete ----------->
 

 I have no clue why.

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oakman   

Can 4.1.4/5/8 be modded too? There's a bug in the patched 4.1.3 that prevents panorama assembly and that's a tad annoying, thanks! 

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skrow   

Just to confirm, I updated my iOS app to 4.1.10 and my Spark still gives me 11Chan + the message to switch wifi region...I canceled the popup and still got 11Chan.
Didn't fly yet but it's 99% sure I'm still in FCC

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Slippy   

More good news! Another patch is available for Bin4ry's amazing patcher, this one restores flight path viewing to the app. Special thanks to some Russian dudes!

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