Dji mini 3 pro incompatible gimble data

I have a Mini 3 Pro that would not fly, had an imu and GPS and a gimble error, and so would not take off.

Today the dampers arrived, so a great job got back together in 30 minutes.

No imu or GPS errors, and it takes off, but I have an incompatible gimble data error. I can view via controller, but it’s not centered.

I tried gimble calibration but it stays stuck at 0%, but if I move it in calibration, it knows and instantly fails.

The DJI assistant updated the firmware but had the same errors.

What I’m led to believe via Google and unfortunately not beforehand is that changing a gimble needs to have data installed to accept a new part :scream:

I tried Python, but when it came to port com device manager only shows the storage, not as a port com, which I need. There is no port when. showing hidden devices showing I added legacy hardware ports (com & lpt) but the communication port has the error so not working.

I tried entering the line with com 3 and com 5 as soon as I switched the drone on, hoping it catches the port, but still no joy.

tried Windows 10 and 7, no ports showing. Used multiple cable connection also.

Is there a method like android when plug in a usb device gives option to change how to handle usb connection. ?

These are the lines below, but unless I get the drone into port instead of storage, it will not work.

py comm_og_service_tool.py COM3 WM160 GimbalCalib JointCoarse

py comm_og_service_tool.py COM3 WM160 GimbalCalib LinearHall

py comm_og_service_tool.py COM5 WM160 GimbalCalib JointCoarse

py comm_og_service_tool.py COM5 WM160 GimbalCalib LinearHall

Mark not sure what you are trying to do with this Python script but a WM160 is the original mavic mini and I can’t see that working with a Mini 3 Pro

I am sure there is a service firmware for calibrating the Gimbal

I am away a the moment but will have a look when back on Friday

What version of firmware is the drone on now

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Looks like the OGs tool set:

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That’s what I was thinking but will they still work with the newer generation

Yes I knew this but it worked with mini 2 so thought I give ago, others have said mini 3 pro worked for them but never confirmed with what code :face_with_symbols_over_mouth: command prompt come back finding file but no port.

01.00.0900

Thanks much appreciated.

Correct :+1:

@sparky these was the codes but unfortunately not mini 3 pro :thinking:

P330   =  1 # Released 2013-01-07 Phantom 1
P330V  =  2 # Released 2013-10-28 Phantom 2 Vision
P330Z  =  3 # Released 2013-12-15 Phantom 2 w/ Zenmuse H3-2D
P330VP =  4 # Released 2014-04-07 Phantom 2 Vision+
WM610  =  5 # Released 2014-11-13 Inspire 1
P3X    =  6 # Released 2015-03-09 Phantom 3 Professional
P3S    =  7 # Released 2015-03-09 Phantom 3 Advanced
MAT100 =  8 # Released 2015-06-08 Matrice 100
P3C    =  9 # Released 2015-08-04 Phantom 3 Standard
MG1    = 10 # Released 2015-11-27 Agras MG-1
WM325  = 11 # Released 2016-01-05 Phantom 3 4K
WM330  = 12 # Released 2016-03-02 Phantom 4 (now referenced as Phantom 4 Standard)
MAT600 = 13 # Released 2016-04-17 Matrice 600
WM220  = 14 # Released 2016-09-28 Mavic Pro (also includes Released 2017-08-24 Mavic Pro Platinum)
WM620  = 15 # Released 2016-11-16 Inspire 2
WM331  = 16 # Released 2016-11-16 Phantom 4 Pro
MAT200 = 17 # Released 2017-02-26 Matrice 200
MG1S   = 18 # Released 2017-03-28 Agras MG-1S
WM332  = 19 # Released 2017-04-13 Phantom 4 Advanced
WM100  = 20 # Released 2017-05-24 Spark
WM230  = 21 # Released 2018-01-23 Mavic Air
WM335  = 22 # Released 2018-05-08 Phantom 4 Pro V2
WM240  = 23 # Released 2018-08-23 Mavic 2 Pro/Zoom
WM245  = 24 # Released 2018-10-29 Mavic 2 Enterprise
WM246  = 25 # Released 2018-12-20 Mavic 2 Enterprise Dual
WM160  = 26 # Released 2019-10-30 Mavic Mini
WM231  = 27 # Released 2020-04-28 Mavic Air 2
WM232  = 28 # Released 2021-04-15 (MAVIC) AIR 2S
WM260  = 29 # Released 2021-11-05 (MAVIC) 3
WM247  = 30 # Released 2020-12-15 Mavic 2 Enterprise Advanced

I have order more dampers as I bloody cut them off before testing :face_with_peeking_eye: what I will do if there is not a fix i will strip the 2 gimbles down and keep original gimble control board that came with the drone and hopefully that will work.


Apparently when I replace one of the arms with motor I will come across a similar problem :sob:

  • Calibration Firmware for ARB 7

Non-Public DJI Firmware. Please do not distribute

It is NOT recommended to use this firmware for flying the drone or actually using the product. This firmware is intended for servicing, beta, test or calibration purposes & can cause the device to behave in an undesired/uncontrollable manner.

DO NOT FLY WITH THIS FIRMWARE UNDER ANY CIRCUMSTANCES

V20.00.0800, for DJI Mini 3 Pro

SHA256 File Hash: 96B96A258895B8AA8EA18FE190BB4CCEBEAB73A8F8C1A03919831A3CC0A7CB85
Anti-Rollback Value: 7
DJI Code: wm162

You will need to use DH to flash it

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Thanks Wayne I will give it a try tonight and report back. :clap:t2::clap:t2::clap:t2::clap:t2::clap:t2::clap:t2::clap:t2::clap:t2:

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I completed the firmware downgrade, and it is now v20.00.0800.

has not corrected the data inaccuracy.

I found that the gimble does not move on boot up; when I try to calibrate it, it rotates left and right but not up and down, thus it remains at 0%. I can zoom in and out with rotation button, C1 button does not go up or down, and the gimble does not move to keep the drone level while moving it up and down.

At the weekend, I’m going to strip down, make sure the data connection is correctly connected, perform gimble testing on the donor drone, and if everything is well, I’ll test the original assigned gimble to the drone. If the problems persist, I’ll strip down and rebuild one from the two, ideally maintaining the original gimble module.

I was watching a video on this error last night ( but for a mini 2 ) the guy stripped it down & ‘ although ‘ it looked fine, the flat cable that goes from the gimbal to IMU was lose, he took it out re applied & all was ok …

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Had fun yesterday :face_with_peeking_eye: I stripped down and started again continuously swapping and changing GPS module gimble then the core-board from the donor drone. :scream:

Fortunately took photos and marked the original parts as I was removing with a permanent marker.

I was getting more and more errors like barometer and missing parts on top of the others​:scream: and what I could calibrate I could not no more. Gimble still left right not up and down :cry:

So I rebuilt the drone back up again as it was originally before opening expect the GPS module snapped ribbon which i replaced from the donor drone.

Booted up and a few errors gone was barometer gimble data, missing parts error gone so some hope, I tried to update firmware but said I was updated which did not make sense as it was on V20.00.0800 still, i had to use DH and DJI assistant a few times until it updated to latest firmware.

Booted up for the 100th time and errors still but after calibration everything went well especially when I did the gimble what a loud scream I did seeing it bounce around dancing left right up and down and I’m doing a old man shuffle in sync with the gimble luckily it does not record while calibrating :face_with_peeking_eye:

I opened up again and hot glued everything especially the legs wires as they pop of so easy with a slight touch of the core-board.

Test flights needed to see all’s good but weathers crap ATM.

Lessons learned: don’t assume what errors says that it’s that as I thought 100’s gimble without opening it up otherwise I might of changed the snapped ribbon only, but even thou i seen it I still was adamant it was gimble but if I have stopped and thinked and rebooted it there and then I would have saved hours of frustration.

Honestly after all the hell I’m actually more happier to know more about the inside of the drone, i decided in the end to strip down the donor so to understand it more. The only part I would seriously not even bother trying to fix is a leg as the wiring and soldering would be a nightmare and it’s definitely for a real expert in tricky tight area.

Heatgun soldering iron 2 types of screwdriver heads, I myself would use a metal spudger easier to open then plastic ones, tweezers, it’s hard to believe I found being gentle opening makes it harder to open, i tear it open in seconds now knowing it’s tough plastic.

Spares :wink:





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