[PX6] [STM32] [ROM] in need

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AHMD92

Senior Member
Apr 2, 2015
68
4
Hi guys, I made a fatal mistake and I need your help! I don't believe but I kind bricked my Head Unit so I need your help to back to my default configurations.

What I did to f* my HU? see:

I get into a secret menu from Settings -> About Device then tap Kernel Version -> OS Version -> Kernel Version -> OS Version -> Kernel Version -> OS Version.
View attachment 5017655

-> Other
View attachment 5017657

-> Display Color Adjust Settings
View attachment 5017677

I reduced the contrast to zero and unintentionally hit the back button. This caused me to be unable to see anything on the screen.
Now I need to go back to that screen and hit the Reset SeekBar Values button. How do I do this if I don't see anything?

Now I just see a black screen, I can't see anything. Do I need to reset this setting, is there any way? I already unplugged the power and turned it on again but continued with the black screen. I can only normally see the boot image. I can even listen to music if I know where the play button is. I am using AGAMMA LAUNCHER.

I recorded a video so you can see how it is now:
https://photos.app.goo.gl/ccpf168rKUoPjFhw8

HELP ME PLEASE!:crying:
  • Plan A:
Can you help me by recording a detailed video of your HU showing how I get to this "Display Color Adjust Settings" screen? I'll try to reach this screen without seeing anything, just following where everything is in your video!

  • Plan B:
How do I safely reset settings? (Hard reset would work? Like if I press reset button and clean data and cache, would work?)

  • Plan C:
How do I reinstall the firmware if I don't see anything on the screen?

Details of my Head Unit:

Bosion - no DSP - 9 inches
  • Android 9 API Level 28
  • RK3399 - ROM 64GB - LPDDR4 4GB - 1024X600
  • Kernel Version: Linux 4.4.167+ - Fri SEP 27 09:08:20 CST 2019
  • OS Version: KC1E0101-PA1-1.1.4.3.1 - BLINK161 - 20190926 - 701F
  • MCU Version: STM32-20190918-11-KC6-37
  • Radio Chip Module: MPU Control.7786
  • BT Module: BLINK-161
  • Display Type: HD(1024*600)
  • No sd card

CPU-Z:
  • Security Patch Level 2019-04-05
  • Build ID rk3399-userdebug 9 PQ2A.190305.002 090929 test-keys
  • Rockchip RK3399 212dpi 1024x600 (9 inches)
  • Java VM ART 2.1.0
  • Kernel Architecture aarch64
  • Kernel Version 4.4.167+ (090929)
  • No root access
hi bro . Do you manage to fix it ? I did the same mistake lol
 

twobel

New member
Mar 26, 2017
2
0
hi bro . Do you manage to fix it ? I did the same mistake lol

You can monitor by connect HDMI cable to new monitor then use touch screen( "Guess" by "Your Head Unit") for access to factory setting again,
Select to reset seekBar value
or slide bar at contrast adjust bar
Good luck...
 

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bicer79

Senior Member
Jun 7, 2016
160
13
Kıprıs
hello.
Buttons on the left side of the screen do not work.

(voice +, voice -, house, power, back)


I go into settings to teach. But at that time, the screen turns white and mixed colors, the device starts over.


I uploaded the rom on the link.

Malaysk doesn't answer at all.

how do i solve the problem



my device. threecar stm32 with dsp
 
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trulu

Member
May 22, 2015
27
2
anyone know how to get to the camera setting, because i want to buy a ahd camera for my car. b4 i buy it i want to check if my headunit compatible with ahd cam or not. thx
 
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turidachian

New member
Feb 17, 2021
3
0
Hello everybody, I have a radio with RK3399 STM32, I installed the lite version because I was hoping to be able to use the Google assistant to make a call but it still doesn't work. Does anyone know how to fix it, is there an apk to make voice calls?
 

animal06000

New member
Apr 10, 2015
2
0
hello i am going to need your help to be able to update my unit and try to connect my don elM327 to use Couple on my car radio at the moment i can only connect my P30 PRO and i see ELM327, but can't connect it to car radio But my car radio seems to be on android 10 and not 9



bonjour, je vais avoir besoin de votre aide pour être en mesure de faire une mise à jour de mon unité et essayer de connecter mon don elM327 pour utiliser Couple sur ma radio de voiture pour le moment, je ne peux connecter mon P30 PRO et je vois l’ELM327, mais impossible de le connecter à la radio de voiture Mais ma radio de voiture semble être sur android 10 et non 9
 
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tomygunner

Senior Member
Mar 21, 2008
107
9
Berlin
bonjour, je vais avoir besoin de votre aide pour être en mesure de faire une mise à jour de mon unité et essayer de connecter mon don elM327 pour utiliser Couple sur ma radio de voiture pour le moment, je ne peux connecter mon P30 PRO et je vois l’ELM327, mais impossible de le connecter à la radio de voiture Mais ma radio de voiture semble être sur android 10 et non 9
In English only!
 

animal06000

New member
Apr 10, 2015
2
0
hello I'm going to need your help to be able to make an update of my unit and try to connect my donation elM327 to use Torque on my car radio at the moment I can only connect my P30 PRO and I see the ELM327 but impossible to connect it to the car radio But my car radio seems to be on android 10 and not 9

sorry chrome have translate all sorry
 

kominky

New member
May 24, 2021
2
0
Hello to all!

After some days owning one of our favorite HU I gathered some info I want to share with yall. :cyclops:
Due to some random system reboot during normal operation I have also conducted investigation on heat dissipation. Simply put, these HUs has bad heat dissipation from factory.


  • The system during an AnTuTu CPU stress test hit 80 C which is not healthy for the unit and it can cause thermal shutdown as thermal throttling is not sufficiently implemented.
  • I added a medium sized heat sink and that reduced peak temperature to around 50 C.
  • To make the system cool on hot summer days I added also a 30x30x10 fan. With fan the peak reduced to around 40 C.

After the modification my HU is running stable, I was not able to make it reboot so far no matter how hard I use it.
P.S.: If any1 has info on the 4-pin connector next to the big white connector please let me know!

Update: added images with cooling added.
.
Hello
Could you tell me the name of the SMD in the red square shown in the picture?
The device burned because I plugged the USB header upside down.
I'd appreciate it if you could tell me.
I came all the way here because I couldn't find a place to get help.
 

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bicer79

Senior Member
Jun 7, 2016
160
13
Kıprıs
Hello
Could you tell me the name of the SMD in the red square shown in the picture?
The device burned because I plugged the USB header upside down.
I'd appreciate it if you could tell me.
I came all the way here because I couldn't find a place to get help.


Bro I burned that part too

Its original name is dfbxb but I couldn't find it.

I shorted pins 1 and 5 and the usb outlets started working
 

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bicer79

Senior Member
Jun 7, 2016
160
13
Kıprıs
Hello
Could you tell me the name of the SMD in the red square shown in the picture?
The device burned because I plugged the USB header upside down.
I'd appreciate it if you could tell me.
I came all the way here because I couldn't find a place to get help.
STMPS2141STR I found this part equivalent but unnecessary to change
 

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kominky

New member
May 24, 2021
2
0
STMPS2141STR I found this part equivalent but unnecessary to change
Hi.
Just like you said.
After uninstalling smd
I grounded the green part and turned it on.
It also does not start USB recognition.
Did I do it right?
 

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  • 10
    Hi everyone!

    This post is for those who wants to know their device as much as possible or has issue with bluetooth / display or just curious or wants to update OS in future.

    There is a hidden "Factory Settings" to access it you need to press: "Kernel Version" > "OS Version" > "Kernel V." > "OS V." > "Kernel V." > "OS V.".

    Some settings in there are very useful actually.
    For those who has fluctuating grey color at certain brightness I recommend "Factory Settings" > "Other" > "Panel learning" > "Vcom regulate value".
    For those who want to make colors of the display simply nicer I recommend "Factory Settings" > "Other" > "Display Color Adjust Settings".

    :good:
    6
    Greetings!
    Browsing the forum I have figured that currently(January 2020) no custom ROM is available for PX6 which came with STM32 MCU.
    As probably many owner have noticed the stock ROM has many flaw and severe deficiency/complete lack of customization.

    As far as I know, sadly no Hal9k ROM development is planned for STM32 model currently. :crying:

    I think many head unit is already or being shipped with STM32 MCU and I have a feeling that many hobby hacker (who can only install a ROM) including myself would be grateful having a sophisticated ROM for this model too.

    I would like to ask owners as well to use this thread and express if they are also in need for a custom ROM.

    Thank you! :highfive:
    4
    All firmwares until now

    New Google Drive link
    View attachment 5018949
    View attachment 5018951

    What is the content?

    Organized list of latest PX6 firmware:

    1. 19/08/2019 os_update_KC1E0101-P01-1.1.4.3.1_20190819_182727 - mcrw27 user
    2. 27/09/2019 os_update_KC1E0101-PA1-1.1.4.3.1_20190927_093454 - Bosion - NO DSP
      18/09/2019 mcu-201909181001KC6-1809.upd
    3. 29/11/2019 os_update_KC1E0112-PA1-1.1.4.3.1_20191129_103212 - Bosion - NO DSP
    4. 30/11/2019 os_update_HC1E0202-P0N-1.1.4.3.1_20191130_122815 - Erisin
    5. 12/12/2019 os_update_KC1E0113-PA1-1.1.4.3.1_20191212_104141.zip
      29/09/2019 KC1E0104-PA1-1.1.4.3.1_20190929_181347.img
      28/10/2019 mcu-201910281001KC6-1453.upd
    6. 21/12/2019 os_update_KC1E0112-P01-1.1.4.3.1_20191221_131058 - NO DSP
      28/10/2019 mcu-201910281001KC6-1453.upd
    7. 04/01/2020 os_update_KC1E0105-P0G-1.1.4.3.1_20200104_100113 - Treecar - NO DSP
    8. 23/03/2020 os_update_KC1E0110-P01-1.1.4.3.1_20200323_160300 - Bosion - EUNAVI - with DSP
      11/04/2020 os_update_KC1E0110-P01-1.1.4.3.1_20200411_110825.zip equalizer empty no flat rock etc
      03/01/2020 mcu-202001031001KC6-1027.upd
    • Factories APKS
    • Several Improvements
    • Manual
    • Photos
    • etc
    4
    Can somebody extract for me the car settings(vehicle/canbus) APK. Thanks

    All my factory apps are here.
    2
    Ok.. mine doesn't detect them :(.. I'm going to try to connect an bluetooth usb dongle to the usb port, and see what happens...

    @OperatorB

    I received my USB bluetooth adapter today.. and to my surprise.. now everything works...

    I think that radio has switched to only using the new adapter.. but I'm not sure.. but I know that Android haven't implemented support for multiple bluetooth adapter (or they haven't implemented a way to control which one it being used...)