Junsun V1 Pro MTK8259 4GB + 64GB Android 10 headunit

Search This thread

miroslavpena

Member
Jan 2, 2012
46
2
#1 note that changing a 8878/8888 setting will reset radio, equalizer, navigation app, ...
#2 in the 8878 settings menu (section Others) is this mysterious memory remember/unrememer setting. Give it a try but consider #1 if you change a setting
#3 remove USB drives because they may be configured to be Androids storage for app data. And maybe the app/setting is required before the USB drive is detected during boot process.
#4 re-flash current or newer firmware
#5 install logcat reader and check for errors and fatal messages while changing a setting or directly after boot.
Will try step #2 and #5 tomorrow.. thank you!

Meanwhile if you could help me with few things too please..
1. How to disable 'pop up' Air conditioning info ? Every time i change something on AC its displayed on screen and its there for few anoying seconds..and even worse every now and then by itself
2. How to turn on led lights on buttons on left side (power,home,+,-).. i found menu for changing colors but it is just completely off?
3. Is it true that if i have canbus i cannot configure steering wheel buttons in SWC as as it is now SWC won't recognise my buttons but most of them works fine (volume, next, voice ..)

Thanks again.
 

TorstenH

Senior Member
Feb 20, 2021
1,804
471
t.me
Realme GT 2 Pro
Will try step #2 and #5 tomorrow.. thank you!
Could be a good idea to check if ACC and B+ aren't swapped.
Meanwhile if you could help me with few things too please..
1. How to disable 'pop up' Air conditioning info ? Every time i change something on AC its displayed on screen and its there for few anoying seconds..and even worse every now and then by itself
I think I've seen somewhere in the 8878 menu an AC setting. Maybe it helps to turn it off. Don't know if it was in Others or Menu Icons section.
Another approach would be to disable the AC activity via an ADB command so Android blocks its execution.

2. How to turn on led lights on buttons on left side (power,home,+,-).. i found menu for changing colors but it is just completely off?
The head unit has an ILL pin. If you turn on your cars lights the ILL provides a 12V+ signal. Sure, you could also connect ACC from OEM radio connector to ILL input of the head unit to always turn on the button background illumination.
3. Is it true that if i have canbus i cannot configure steering wheel buttons in SWC as as it is now SWC won't recognise my buttons but most of them works fine (volume, next, voice ..)
Absolutely correct. But maybe your cars SWC is realized by a resistance matrix which gets exposed to the OEM radio connector. In this case you can bypass the can box, use the KEY1/KEY2 pins of your head unit and so the learning function.
You could also check if the not recognized buttons get logged (logcat reader). In this case you could use AppSwitcher app for this buttons.
 
  • Like
Reactions: miroslavpena

miroslavpena

Member
Jan 2, 2012
46
2
I think I've seen somewhere in the 8878 menu an AC setting. Maybe it helps to turn it off. Don't know if it was in Others or Menu Icons section.
Another approach would be to disable the AC activity via an ADB command so Android blocks its execution.

.. disabling it in service menu doesn't help..no change it still apears on screen..
..how to do it via ADB? What's the command line? Ty
 

ciorapel

Member
Oct 15, 2019
30
7
1. How to disable 'pop up' Air conditioning info ? Every time i change something on AC its displayed on screen and its there for few anoying seconds..and even worse every now and then by itself
In 8878 menu, you have a setting for AC type, or something like this. You have one fullscreen option (that I hate too), and two aditional bars on bottom of display; choose ac type (or something like this) 2.
 
  • Like
Reactions: visser

miroslavpena

Member
Jan 2, 2012
46
2
In 8878 menu, you have a setting for AC type, or something like this. You have one fullscreen option (that I hate too), and two aditional bars on bottom of display; choose ac type (or something like this) 2.
I dont have AC type option just AC enable, disable..and on disable its still working
 

Attachments

  • IMG_20230318_130655.jpg
    IMG_20230318_130655.jpg
    3.7 MB · Views: 58

no_hits

Member
Jan 31, 2019
27
8
@ciorapel
@miroslavpena
and other who have problem with clearing launcher cache/settings (radio preset, brightness, DSP and EQ settings , default navi app , and so on...

I have fix this problem, maybe helps you too
1) reboot device (cold start) - about device - tap on gear and write code 4 (yes only number 4 for reboot)
2) set what you need
3) connect USB flashdrive
4) reboot again
5) disconnect USB drive

But pay attention ! ! ! ! - If you will go to advanced setup (code 8878) , for make changes , will press save and reboot - every lancher settings will be reset to factory defaults ! ! ! ! then you must do procedure above again for store launcher settings

Application Reboot.apk can be still used without any issues ;-)
 
Last edited:

ciorapel

Member
Oct 15, 2019
30
7
@no_hits thank you for your suggestion, I'll try it if I ever see that my HU looses settings again, but seems like a FW update managed to make my settings stick. I can't say anything about Radio settings, as my radio app is still broken (I managed to make it work before update, but after update it got screwed again).

But I think that I misunderstood the resetting situation. If you install Reset.apk from ”for_launchers”, and reset the HU from that option, do your settings get reset ? My settings get reset on every reboot of the HU, but not after sleeping. I never got the chance to let the HU fully go into shutdown (after 3 days as I've read), to see if the setting get reset then, but the settings seem to stick from one day to another.

Thank you again for your suggestion, and I'll try it first time my HU settings get reset.
 

no_hits

Member
Jan 31, 2019
27
8
Reset.apk not tested. Now it works for me finally, so I don't want to try other things at this moment

Let me know when you test my suggestion ;)
 

RUSUADRIAN

Member
Nov 25, 2022
11
0
Hello guys,i have a problem with my rearview camera,my lines are static. I tried to enable dynamic lines from setting but they are static,anyone encountered this problem?Thank you
 
Oct 26, 2014
7
0
Hello, just installed this on an european civic 8.

My main worry is that wired android auto doesnt work, i have tried both usb connectors but cant connect, no detection. My phone is p30 pro which uses usb to USB-C

Also why are there 2 usb? On the radio side, one has more pins than the other, whats the purpose of each?

I only see android boot logos, not car brand logos (i thought there were plenty)

Gps not working, only on google maps but i think its because i connected via wifi to my phone.
 

no_hits

Member
Jan 31, 2019
27
8
@galaxynexus789 you must enter to advanced setup (8878 code) and enable AA/Car play and phone link.

First USB is 3.0 (there you will Connect phone), second is 2.0 for USB flashdisk

In advanced setup you can change boot logo to your car brand too

GPS - is antena cable connected properly?
 
  • Love
Reactions: galaxynexus789
Oct 26, 2014
7
0
@galaxynexus789 you must enter to advanced setup (8878 code) and enable AA/Car play and phone link.

First USB is 3.0 (there you will Connect phone), second is 2.0 for USB flashdisk

In advanced setup you can change boot logo to your car brand too

GPS - is antena cable connected properly?

First of all, thank you very much!!


Why do they sell you a radio that says AA compatible but then you need to ask for help on a forum to activate it in some hidden menu? Funny...

GPS appears to be well, but ill unplug and plug again maybe i did wrong.

Again, thank you!
 

no_hits

Member
Jan 31, 2019
27
8
It should be enable by default, but you can check it.

GPS antena should be on visible place such a dashboard or windscreen (without heating or iron tinting), not under dashboard, around wiring and covered by iron parts.
 
  • Like
Reactions: galaxynexus789

Jibril14

New member
May 21, 2022
3
0
Hello , i want to buy an Junsun V1 Pro for a Renault Megane 3 , but since i have another brand headunit , is much cheaper to buy just the headunit without frame/cables/canbox , do you think the cables and canbox will work?
Canbox is Hiworld
 

no_hits

Member
Jan 31, 2019
27
8
Canbox itself could work , but wiring (connector) on side of headunit could have different connection. IMO I recommend to buy whole set.
 

Jibril14

New member
May 21, 2022
3
0
Thanks, its true that while it looks the same , pin layout may be different , whole set it is then.
 

Top Liked Posts

  • There are no posts matching your filters.
  • 1
    Hi could some one help me, so when I use the factory fitted backup camera to display correctly. All I see is this..
    It's a nissan Qashqai J10.
    You could try to change video format in factory settings (code 8878, section Others). There should be the possibly to switch from/to PAL, NTSC and maybe more.
    1
    Hi!
    I would like to turn on the radio without putting it in the car yet and configure it like this. If I connect the red cable from the quadlock and the black one to a 12v and 2A transformer, will I be able to use it normally or do I also need to connect some other cable? Thank you
    You just need to connect B+ and ACC to the positive output, GND to the negative output of your 12V power supply.
    1
    Junsun V1 pro won't save settings
    So far i've tried:
    Adding USB drive as Android space, also as travel media for music
    Reset
    Update to v61
    Manual save to USB drive via 5555 code
    Manual save to SD does not work
    After restart head unit loses radio stations, equalizer settings

    Car is Peugeot 207, Junsun V1 Pro with 64GB of storage and 4GB of RAM
    Any tips are welcome
    1
    Thanks!,
    So it's the red, and yellow that go to the positive and the black to the negative. That red comes to the input connector to the radio from the cambus while the other two come directly from the quadlock.
    So I have to connect the positive of the transformer to that red just before the input connector, right?

    Connect pin 8 and pin 15 to the positive (+) output and pin 16 to the negative (-) output of your power supply (transformator).

    CAN box connection is not needed to start the head unit.


    IMG_20230523_143234.jpg

    I don't like to talk about wire colors because they may be not identical for different harnesses.
    1
    You could try to change video format in factory settings (code 8878, section Others). There should be the possibly to switch from/to PAL, NTSC and maybe more.
    Thanks it worked!
  • 2
    But maybe you're interested in my new free app:
    2
    Are there any other codes except 8888,8878,8877 to try?
    Use at your own risk !!!!

    8888 - restricted settings menu
    8878 - full settings menu. Mostly what you're looking for.
    Additional info can be found here: https://forum.xda-developers.com/t/junsun-v1-factory-settings.4282295/
    1111 - load monitoring
    0 - update (mcuupdate_num)
    1 - some menu (csudy_num)
    2 - barcode
    3 - another barcode 8938003992756585897
    4 - reboot
    5 - color setting
    6 - set a new random Bluetooth name
    7 -
    8 - gis whitelist reset
    9 - system notification: device activated (in Chinese)
    0129 - CAN DATA
    5555 - save settings
    1912 - factory setup
    1812 - shop setup
    12345678 - update_apk update MainUI
    3699 - update_apk2
    5699 - update_apk3
    7788 - atc_log (engineering menu of the 4G modem)
    8877 - atc_factory
    Menu for changing the cutoff (filter) frequencies for the sub and line outputs (relevant for those who use external amplification):
    Code 8877 ---> Audio ---> Scroll to Sound Effect ---> Bass (or Alto (Middle), Treble).
    And also there is a setting and the ability to completely disable Loudness.
    USB mode can be changed here if required, too.
    7758258 - obligatory mode !! do not enter !!! Complete crap going on
    5678 - changing the menu code logo
    3234 - apk_install_pwd
    Alternatively (untested!) restore the engineering menu settings to the factory settings.
    2134 - appinfo_id_num
    6666 - install_id_num
    7777 - install2_id_num
    1616 - display_id_num brightness
    2064 - testmode_id_num
    1414 - reboot_id_num
    9191 - destroy_id_root_num
    9090 - destroy_id_num
    1313 - radio_reset_num
    1101 - screenshot_num
    4321 - filedelete_num
    1234 - filecopy_num
    2

    Hi thanks to all for your useful posts , i have a junsun radio 2gb+32gb whit 4g , i think is v1pro but many things are different to the other user posted here,​

    this device is the device i purchased :​


    View attachment 5439269

    I have one problem with reverse camera when I put on reverse the car ( toyota rav4 2010 ) nothing happens, the reverse cable gets 12v but the reverse camera app not launching . when i put reverse and the video wire of the camera is connected to aux video in I can get image from camera, but i need to launch the aux video app every time i put reverse.​

    I have something like this:​


    View attachment 5439271

    So my question are:​

    1) Is this a v1pro radio?​

    2) Someone has the same problem with the camera or knows what is happening?​

    3) There is any update for this radio?​

    Sorry my bad English, here are some pics from the device:​


    View attachment 5439299


    View attachment 5439301
    View attachment 5439303

    Thanks for your help​

    As soon as there are +12 V on the reverse wire your should see the rear view camera app with a black screen (if rear view camera signal is not connected).

    I think you have this device:

    Not a V1 pro with an old android version.
    2
    I just received a reply from JunSun support that it's not possible to connect Internet through Bluetooth in the unit. The only option is mobile hotspot after all
    They told me the same thing and it's not true, I can do tethering by bt. I copy and paste from a post that I put pages back, I hope it helps you.

    My headunit is a kapud mtk8257, but it is very similar to Junsun V1 Pro.

    In 90% of the cases, if before connecting the bluetooth on the mobile I am already allowing tethering (phone) automatically the headunit picks up the internet from the mobile.
    But other times I have to force it: the button is "hidden", once connected to the phone, go into settings, click on the magnifying glass/search engine, look for "previously connected devices", click on your phone, and you will see that one of the buttons is "allow internet connection" or something similar.
    PS: I have the radio in Spanish language, but the name of the menus should be like this, or similar.
    2
    Firmware installed in meantime?
    Today I applied the Firmware Stock update procedure. The procedure was successful and the tablet works ok. It remains to put it back in the car and see how it behaves in tests. This was possible for the two users who thank them once again: djborsi and TorstenH. I removed the tablet from the car and made the connections to be able to work with a + 12V DC / 220v power supply. For those who want to power it separately from the car, I put some pictures after the procedure and a wiring diagram. I made a video with the FW update procedure. Because I noticed that the tablet heats up a lot, I mounted a 12V / DC fan, It has the size 70X70mm. and thickness 15 mm. It was from an old CPU cooler. It is fastened at the back with 4 screws as seen in the photo. I put a 40 Ohm series resistor. to reduce speed and noise. I hope that what I posted here will bring a little help to those interested.