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

Search This thread

hurjup

Member
Sep 29, 2021
23
1
Okay, let's start it over, it may need more explanation.

In the defense of the stock launcher I suspect some hidden development happened here, so I see now 8 "skins", without the stupid car animation. One of them looks promising, offering ten app shortcuts on each page and a big button to blank the screen.
I've mentioned that I have 3 buttons to sacrifice. Now they are assigned as 1) back 2) home screen 3) off. Combining it with the above mentioned skin I can pretty much switch to any application by 2 clicks.
My two biggest problems currently are
- VLC stops playing, Android Auto disconnects, ... when I invoke "off"
- I need to poke the touchscreen too

I've seen three different blank screen behavior:
a) off: blaNks screen + VLC stops playing. Available through SWC out of the box.
b) blaNk screen: blaNks screen + VLC continues playing. Available through the moon icon in the android status bar.
c) blaCk screen apps: Just something that paints screen black, but doesn't switch backlight off. Garbage.
I'm looking for a way to achieve b) functionality via SWC, instead of the a). Most probably it will work the same way as AppSwitcher; an app will be hacked in place of the GPS app. The moon icon and the alternative skin does the trick, so must be doable. The only thing is that I didn't find an app that does it or can be configured to do it.

Well, google research didn't come to an acceptable result, and honestly installing - configuring - de-installing every candidate I find on my own would consume more time I'm willing to afford.

That's why I was turning to collective consciousness. Is there a simple solution on the above? If not, is there a solution on it (like another launcher, etc)?
Noone?
 

specipez

Member
Jan 23, 2023
5
1
Hello,

Do you know if there is another firmware version? because I recently bought this unit and my menu and options are different, the same problem I could read a few pages ago in a post.

For example mine doesn't have "car infotainment" and I cannot select the canbus (it works correctly, but I didn't choose the canbus)

Another question, my unit V1 pro is the one with physical buttons bellow the screen for Passat, is the same firmware valid for mine and for the ones with capacitive buttons at the left of the screen?

Regards
 

Gaga92i

Member
Dec 27, 2021
17
1
Hello I think we should ask the seller or check the firmware already installed if it is indicated the model number?
 

specipez

Member
Jan 23, 2023
5
1
Yes, of course you are right... but I installed the unit yesterday and I couldn't find the firmware version. Seller just says it has the last firmware installed.

I will try to find the model number or firmware version.
 

TorstenH

Senior Member
Feb 20, 2021
1,438
380
t.me
Realme GT 2 Pro
I've seen three different blank screen behavior:
a) off: blaNks screen + VLC stops playing. Available through SWC out of the box.
b) blaNk screen: blaNks screen + VLC continues playing. Available through the moon icon in the android status bar.
c) blaCk screen apps: Just something that paints screen black, but doesn't switch backlight off. Garbage.
I'm looking for a way to achieve b) functionality via SWC, instead of the a). Most probably it will work the same way as AppSwitcher; an app will be hacked in place of the GPS app. The moon icon and the alternative skin does the trick, so must be doable. The only thing is that I didn't find an app that does it or can be configured to do it.
I try to access the MCU by a custom software which can include the black screen. Please watch the threads


Currently I'm working on AppSwitcher to do a lot of improvements for non-Mtk8257 devices and I'm happy @Jetblack31 is supporting me massively - and not just using the app as or is. The idea of AppSwitcher is not to need a navigation (back, home and whatever) to switch between apps while you're on highway or cruising trough the city...


Junsuns core app MainUI is activating the screen as soon as you push a button:
Code:
public void DealKeyDim() {
        if (Mcu.GetIll() == 1 && StSet.GetBLIll() == 1) {
            if (Mcu.BklisOn() == 0) {
                Mcu.BklTurn();
                return;
            }
            int GetBLNight = StSet.GetBLNight();
            if (GetBLNight > 3) {
                StSet.SetBLNight(3);
            } else if (GetBLNight > 0) {
                StSet.SetBLNight(0);
            } else if (Mcu.BklisOn() == 1) {
                Mcu.BklTurn();
                StSet.SetBLNight(6);
            }
        } else if (Mcu.BklisOn() == 0) {
            Mcu.BklTurn();
[...]

The question is what's your goal by disabling the screen? Saving energy? A black overlay may not be the worst idea, especially the screen can remain black by pressing a key (e.g. to adjust volume).
 

hurjup

Member
Sep 29, 2021
23
1
The question is what's your goal by disabling the screen? Saving energy? A black overlay may not be the worst idea, especially the screen can remain black by pressing a key (e.g. to adjust volume).
As you wrote in the other thread, the range of the backlight intensity may be limited by the UI. Your forthcoming app may be a long term solution one day. Anyway, currently it is still way too bright even with the lowest setting. By driving in the dark it annoys me more than it should.
Searching for a workaround, on one hand the screen with black screen apps is still too bright, and which I've seen were stupid too (didn't exit on touch). On the other hand the other, "off" functionality stops music playback, AA, and pretty much everything.
With the new skin (ah, "theme") I mentioned before, a big button comes with the proper dim functionality I'm looking for, and I'm fine with it basically. The only thing is that I can't control it by SWC. Something easy to live with.

Amongst the lines you answered my question at last: This kind of dim functionality is beyond control, can only be achieved by a hacky (custom software) way. Thank you for that! :)
 

TorstenH

Senior Member
Feb 20, 2021
1,438
380
t.me
Realme GT 2 Pro
As you wrote in the other thread, the range of the backlight intensity may be limited by the UI. Your forthcoming app may be a long term solution one day. Anyway, currently it is still way too bright even with the lowest setting. By driving in the dark it annoys me more than it should.
Searching for a workaround, on one hand the screen with black screen apps is still too bright, and which I've seen were stupid too (didn't exit on touch). On the other hand the other, "off" functionality stops music playback, AA, and pretty much everything.
With the new skin (ah, "theme") I mentioned before, a big button comes with the proper dim functionality I'm looking for, and I'm fine with it basically. The only thing is that I can't control it by SWC. Something easy to live with.

Amongst the lines you answered my question at last: This kind of dim functionality is beyond control, can only be achieved by a hacky (custom software) way. Thank you for that! :)
Most users are fighting with the same topics and it has a reason I added the dimming functionality to AppSwitcher.
The automatic dimming controlled by sunrise 🌅 /sunset 🌇 calculation works well on MTK8257 devices and for me even the better solution that a completely black screen.
 

Donmarco876

New member
Jan 27, 2023
2
0
Good morning everyone,



i have a problem with the car radio just bought on aliexpress, and mounted on a fiat freemont 2011.



the car radio also manages the climate via canbus, not having physical buttons is essential to work well.

IMG_20230124_203532.jpgIMG_20230127_094904.jpgIMG_20230127_094850.jpgIMG_20230127_094604.jpgIMG_20230124_203835.jpg

the first problem is with the driver side seat heater, i activate it and after a few seconds it switches off, while the passenger side one works properly.



the second problem is with the parking sensors, as soon as the car is switched on it works, after a few seconds the malfunction light comes out on the on-board pc, and they no longer work.

IMG_20230127_094542.jpg

the third problem, I hope to solve it soon by inserting a filter, is the noise in the rear view camera...

IMG_20230127_094520.jpg

can anyone help me?



thanks!
 

TorstenH

Senior Member
Feb 20, 2021
1,438
380
t.me
Realme GT 2 Pro
Buongiorno a tutti,



ho un problema con l'autoradio appena comprata su aliexpress, e montata su fiat freemont 2011.



l'autoradio gestisce anche il clima tramite canbus, non avere pulsanti fisici è fondamentale per funzionare bene.
View attachment 5820943View attachment 5820955View attachment 5820953View attachment 5820945View attachment 5820951


il primo problema è con il riscaldatore sedile lato guida, lo attivo e dopo pochi secondi si spegne, mentre quello lato passeggero funziona correttamente.

View attachment 5820957

il secondo problema sono i sensori di parcheggio, appena si accende l'auto funziona, dopo pochi secondi si accende la spia di malfunzionamento sul pc di bordo, e non funziona più.

View attachment 5820949

il terzo problema, spero di risolverlo presto inserendo un filtro, è il rumore nella retrocamera...
View attachment 5820947


Qualcuno può aiutarmi?



Grazie!
The solution of your problem is:

誰が見てもわかるように、英語で書く。
 

Osga21

Senior Member
Aug 3, 2013
71
50
I have one of these units and the Autolink app just stopped working, stay on "Loading" for a few seconds then crashes.
I did a factory reset to the headunit and Autolink said the activation was successful, but I still got the same issue.
 

maxpan

Member
Jan 31, 2023
9
0
hi! I just bought a p1 pro 4gb ram 64gb memory. I have some problems. I did not receive a description for the device. my reversing camera is not working well. the picture is flickering, not in color. does not show the reversing radar. it worked perfectly on a previous Chinese android head unit. where can I set the language? the car appears randomly from the top view and the nose of the car lights up red in the picture. (I don't have a radar in front).
20230131_180001.jpg
 

le_mi

Senior Member
Jul 30, 2016
125
20
hi! I just bought a p1 pro 4gb ram 64gb memory. I have some problems. I did not receive a description for the device. my reversing camera is not working well. the picture is flickering, not in color. does not show the reversing radar. it worked perfectly on a previous Chinese android head unit. where can I set the language? the car appears randomly from the top view and the nose of the car lights up red in the picture. (I don't have a radar in front).View attachment 5824687
You have to set it up in the factory settings (Code 8878).
 

le_mi

Senior Member
Jul 30, 2016
125
20
Yes there is an Option something with BACK with options for the cam and pdc.

Try the first option in cam type. This was the solution for me. I also had the flickered black white cam pic.
 

specipez

Member
Jan 23, 2023
5
1
Your radio seems to be the same than mine, in my case it is a TS18 and I had the same problem, I changed from PAL to NTCS in rear cam menu.

I have the same problem with a car shown in the screen randomly, if you find the solution please tell because it is really annoying.
 

specipez

Member
Jan 23, 2023
5
1
Another problem I would like to solve is that when listening USB music with Poweramp it never goes into mute when making or receiving a call.
 

maxpan

Member
Jan 31, 2023
9
0
thanks, camera setup helped. ntcs was the solution. I don't know what I did, now the car is no longer displayed from the top view
 

loger

New member
Apr 4, 2011
1
0
Hello everyone. Looking for a program that was installed on my junsun v1 pro 4 / 64 I do not remember what it was called but it's such an assistant robot on the screen. By accident, when turning on the radio, I wanted to clean the screen with my hand, I drove right and left on the screen and the recowery mode started, the radio reset, but this robot is gone. The only thing I noticed from the underwriter is that when reversing the music stops playing, early it was so that the music turned down and you could hear music and sound of reversing sensors. Thank you for your help.
 

le_mi

Senior Member
Jul 30, 2016
125
20
This is the absolutely useless Chinese assistant. That was the first thing I disabled. No one needs it.

Because of the sound and the reverse sensors you can look at the settings under car or sound setting. Maybe there is an option.
 

Top Liked Posts

  • There are no posts matching your filters.
  • 2
    I have this device, the microphone is really poor, can I change some settings to improve the microphone?
    Use an external mic and deconnect the internal one:
    Post in thread 'Junsun V1 MTK8259 - the adapter battle (Kia Ceed Jd) / OEM camera usage / reference thread' https://forum.xda-developers.com/t/...-usage-reference-thread.4236281/post-87970225
    1
    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.
    1
    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.
    1
    I dont have AC type option just AC enable, disable..and on disable its still working
    You are right. The option is under CAN menu.

    Air ui option

    //edited:

    airui.jpg
    1
    @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?
  • 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.