Problem with MTCE PX5 head unit related to steering wheel keys - MTCD Android Head Units General

Dear community,
I'm kind of lost since I get no support from Erisin about this (no response)
I have a BMW E46 from 2002 and the Erisin head unit.
MCU version is stock px5 MTCE (px5-userdebug 8.0.0. OPR5.170623.007 eng.hct.20180417.101726 test-keys)
I liked the idea of controlling the head unit volume by steering wheel.
Therefore I wired and installed the steering wheel buttons to my car.
The ACC works fine and in general I can control the head unit by the buttons.
Change Volume, Skip a song and so on...
Buuuut very often the head unit goes crazy or the control gets lost over the steering wheel buttons. (I am not able to drive over 30 minutes without having this error)
It seems like the head unit receives some ghost commands and volume goes up to max or I have random song skips. Sometimes it simply doesn't react on buttons.
Of couse this is not usable at all, therefore I disconnected the whole buttons.
For example you see a ghost volume up at 0:27
https://youtu.be/h5rCFSF8pew
Or here there is no reaction on volume up (please excuse my loud breathing)
https://youtu.be/e53De2HQJfY
Key study menu doesn't work at all:
https://youtu.be/Z0wzJsiScSI
Here is magic volume up (you will also see a handsome gangster guy)
https://youtu.be/ZPDQMeU4CNU
I have no clue how to debug or what I can do.
Any hints from the experts?

messiah said:
Dear community,
I'm kind of lost since I get no support from Erisin about this (no response)
I have a BMW E46 from 2002 and the Erisin head unit.
MCU version is stock px5 MTCE (px5-userdebug 8.0.0. OPR5.170623.007 eng.hct.20180417.101726 test-keys)
I liked the idea of controlling the head unit volume by steering wheel.
Therefore I wired and installed the steering wheel buttons to my car.
The ACC works fine and in general I can control the head unit by the buttons.
Change Volume, Skip a song and so on...
Buuuut very often the head unit goes crazy or the control gets lost over the steering wheel buttons. (I am not able to drive over 30 minutes without having this error)
It seems like the head unit receives some ghost commands and volume goes up to max or I have random song skips. Sometimes it simply doesn't react on buttons.
Of couse this is not usable at all, therefore I disconnected the whole buttons.
For example you see a ghost volume up at 0:27
https://youtu.be/h5rCFSF8pew
Or here there is no reaction on volume up (please excuse my loud breathing)
https://youtu.be/e53De2HQJfY
Key study menu doesn't work at all:
https://youtu.be/Z0wzJsiScSI
Here is magic volume up (you will also see a handsome gangster guy)
https://youtu.be/ZPDQMeU4CNU
I have no clue how to debug or what I can do.
Any hints from the experts?
Click to expand...
Click to collapse
You should go Settings/Steering wheel keys to program the SWC, but not go to panel keys study.

I think the key menu doesnt matter. Actually the Buttons work as expected. But it gets out of control very often (random skips, volume up and so on). I also saw a key menu where I See the logs of key press. The head unit seem to actually receive the ghost key strokes repeatedly.

Have you tried entering at the factory menu and changing the car model at canbus menu?
You have a full menu for the keys where to change configurations.
Enviado desde mi iPhone utilizando Tapatalk

Had same problems - like not working buttons, i press up but it volumes up... After latest MCU update seems to be fixed. But also what i did in Steering wheel learning menu dublicated inputs for same buttons. i have on mine and it works without fall since.

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