Modded FW 1.04.0500 for unchained MPP

[Gommapal]

I'm looking for a modded and working FW version 1.04.0500 (the last released for Mavic Pro) deprived of FC (modules 305, 306 and 905) for my unchained MPP. I tried to do the cherry picking by myself with 7-Zip but, when I use it for flashing my MPP, I get a critical error 200 that sticks my bird on the ground and don't let it fly.
I've done the procedure many times (downgrading with DJI Assistant to 1.04.0100, rooting, downgrading with DUMLdoreV3 to 1.03.0700 and then upgrading with DUMLdoreV3 to modded 1.04.0500) but finally I always get the critical error 200. So I returned to the modded 1.04.0300. As a matter of fact, the real reason that push me in the need of upgrading to the last version of the FW is to stop DJI GO 4 annoying me in his continuous asking to upgrade to the new release of the FW.
Do you know a link to where I can find a working modded FW 1.04.0500 ?

 

[Kilrah]

DJI released 400 precisely to add further checks against these practices so you won't find that.

 

[Gommapal]

Anyway... I found a solution!
I created a mod .bin file (I named it: V01.04.0500_update_Mavic_dji_system.bin) erasing all components already in FW version 1.04.0300.
The new (and remaining) components are the following:
wm220_0000_v01.04.0500_20180903.pro.cfg.sig
wm220_0801_v01.06.00.46_20180613.pro.fw.sig
wm220_0805_v01.04.00.99_20180601.pro.fw.sig
wm220_1200_v01.01.00.72_20180515_es02.pro.fw.sig
With DUMLdoreV3 I flashed the MPP and now everything seems working well.

 

[Gommapal]

No way... at the third reset the critical error 200 get back !!!

 

[BohneOrg]

Is there any solution yet?

 

[lolo780]

Stick to 1.04.0300

 

[Henfri]

Hello,

did I understand correctly -asking, as I have been spending large parts of the day already on this...:
UsingDUMLDore flash:
1) V01.03.0700_Mavic_dji_system
2) V01.04.0300_mod_Mavic_dji_system (modules 305, 306 and 905 deleted with 7zip before)

Because I always get an error regarding the Data-Logger in the DJI App now and cannot take off (the Error is German unfortunately...)

Greetings,
Hendrik

 

[Microwave89]

Upgrade your Mavic completely to 01.04.0300, and best do this twice so it "sticks".
If you lost root please get root again.
Then use howto:fc_patcher_tool [dji.retroroms.info] to create your custom FC.

 

[Henfri]

That works, but then I lose the ability to modify most parameters, no?

 

[Kilrah]

The link he posted is to a patching method that brings them back.

 

[Henfri]

Hello,

FW_Patcher does not give you just root.
You can get root with dumlracer or with dumldore (temporary).
FW_Patcher does more, see here and is overkill for just modifying parameters.

Greetings,
Hendrik