General New Joying Android 10 UIS7862 Octacore 1.8GHz (4GB RAM, 64GB flash)

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@eatabagel @Harlley Sathler disable/uninstall digital wellbeing


I knew something weird was going on. I rooted the unit just so I can permanently delete the stock launcher.
 
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yurtesen

Senior Member
Dec 27, 2010
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I tried to read the whole 45 pages. :) I have Joying UQ128N4G. It came with the old UI and it works pretty good. But I have few small problems.
1- The GPS seems to work so much worse than my old Ownice C500 unit. I am using the VW rooftop antenna and I tried with the Joying's own antenna on dash also. The Joying antenna seem to give slightly better SNR but still it loses location when driving etc. Is there others having similar issues or should I be opening the radio to look at connections?
2- The fonts seem to be quite small in navigation apps. I guess there is no way to change it without rooting?
 

yurtesen

Senior Member
Dec 27, 2010
293
55
With Joying UQ128N4G I am having another annoying problem. This is a unit without physical button. I have button lights on time based setting. Because otherwise they are always on as car turns on dash illumination always. Nowadays the problem is that it is too dark in the evenings to see the buttons.

In my previous Ownice C500 unit, the button lights could dim with the dash dimmer. I guess this is not possible with these units?

I also had problem where Google maps said the compass accuracy is low and I should rotate the unit. Obviously this is not possible. Do others have this problem?
 

surfer63

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May 4, 2010
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With Joying UQ128N4G I am having another annoying problem. This is a unit without physical button. I have button lights on time based setting. Because otherwise they are always on as car turns on dash illumination always. Nowadays the problem is that it is too dark in the evenings to see the buttons.

In my previous Ownice C500 unit, the button lights could dim with the dash dimmer. I guess this is not possible with these units?
No. not possible.
I also had problem where Google maps said the compass accuracy is low and I should rotate the unit. Obviously this is not possible. Do others have this problem?
Please check your GPS cable, the connection to the unit and the position of the end "box". It should have a clear view on the sky. Below the dashboard is not a problem, below lots of metal you will have a bad reception.
 
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yurtesen

Senior Member
Dec 27, 2010
293
55

yurtesen

Senior Member
Dec 27, 2010
293
55
No. not possible.

Please check your GPS cable, the connection to the unit and the position of the end "box". It should have a clear view on the sky. Below the dashboard is not a problem, below lots of metal you will have a bad reception.
The car has the VW GPS module 1J0035498C on roof and this module worked perfectly in all weather conditions with Ownice C500. But I also tried the antenna which was shipped with the headend "on top of the dash". The apps showed only slightly better signal with that GPS antenna. When I tried to drive, the radio lost my position never the less. Sometimes it works but I feel it is quite borderline.

Is there a way to have comparison? For example I tried GPS Test app from Android store and my phone has much better accuracy when it is inside the car next to gear lever even. But I am not sure if this is a good comparison.
 

yurtesen

Senior Member
Dec 27, 2010
293
55
The GPS signal itself is perhaps not bad. It is hard to compare. Except my phone says it finds 60+ satellite and use 25+. But joying unit says 15-20 satellite and uses 6-9.(when it has lock).

Often it has no lock or accuracy is low (10+meters). Google maps still show me moving on map even when Gps Test says there is no lock. 😳
 

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Rafal_Z

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Nov 7, 2022
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I have a problem with my main unit.

I have a 4GB and 64GB RAM. 7862 processor.
MCU ZAHAN.

My unit has no CAN communication with the orginal reversing sensors and the ability to monitor and reset the wheel pressure sensors.

In the car information I only have the average fuel consumption and the number of kilometres driven.

I am not an android programmer. Could someone please advise me
what is the best thing to do?

I can not find any information about this MCU ZHAN anywhere on the internet.

Is it possible to change it to JOYING? Or is it sufficient to have an app that can access tyre pressure information via CAN.

CAN communication works because I can e.g. see information about open doors.
 

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Hi, I saw Joying has released new firmware dated 2022-10-27 on their website.
I understand with newer kernel (6315_1.zip) dated after July 2022, you won't be able to downgrade back.
So the question is are the newer (post July 2022) kernels having any issues or limitations compared to the older kernels?

Is it possible to mix and match an older kernel (2022-06-27) with Joying latest APP (AllAppUpdate.bin) file dated 2022-11-08?
 

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  • 11
    EDIT: XDA didn't like me attaching the photos, just got broken links so I'm sorry that they're embedded like this.

    Joying just sent me a review unit of their new 10.1" Android 10 head unit so I figured it should have its own thread. It looks like they're pumping out updated versions of all their previous devices by the day so I imagine they'll have versions of this in all the different screen sizes soon. First impression is good. The interface is appreciably more responsive than the Intel unit I currently have in the car. I'm working on some videos but figured I'd throw some pictures in here. Here is an unboxing and interface tour video: https://youtu.be/h__Zc0fwOtw

    The PCB looks is clearly iterative but looks to have some significant redesigns, especially with the power supply which is much larger than on the previous Intel design, through that might be required for extra derived voltages for the new UIS7862 SoC.

    The previous Intel PCB used an STM32 MCU in between the main SoC and the bluetooth module which probably contributed to the difficulty interfacing Bluetooth devices that weren't specifically allowed by Joying. The area where this chip was now looks to be filled with power components though the same Bluetooth module is still used. I'm hopeful that this means there's direct communication from the SoC to the BT module, but that'll take more digging to determine. There is also a new general purpose ARM Cortex-M4 MCU added between the SoC carrier board and the DSP chip (GigaDevice GD32F330R8T6). I'm curious if that's taken the place of the old STM32 chip or if it's used for something else. Hopefully I'll be able to determine what it's used for, but I'm not touching anything until I get it installed and reviewed.

    The green PCB is the Intel board and the yellowish one is the new Android 10 board. Of note is the fact that the new PCB has Joying's name silk screened onto it where the old Intel one didn't. So, at bare minimum, this board is spun just for Joying, even if the only differences are the silk screen layers.

    Any requests for specific details?

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    4
    For those who were discussing the extension cable or mounting the screen away from the head unit:
    I did this recently with this model.
    The cable is not a standard IDE cable. I can't remember the correct description but I will try to send my mind back to the80s.

    It is a 40 pin reversed (or flipped) flat ribbon cable using standard IDC 2mm pitch connectors.
    What this means is: Pin 1 = Pin 40, Pin 3 = Pin 38 etc...

    A standard IDE connector (AFAIR) is a straight cable, meaning Pin 1 = Pin 1 and Pin 40 = Pin 40

    This type of cable is used for many other applications in electronics, so it's not like they made a proprietary cable.

    I did an unboxing of the 10.1 unit here:
    And a "remote screen" install here:

    And here is a photo of the actual cable that came with the unit to show the connectors, registration keys, and pin outs (Note the red/pink stripe)

    I hope it saves someone from blowing up their screen!


    p.s. I could be mistaken, trying to find the exact pinout for an IDE cable seems to be a bit difficult. Please feel free to correct me if wrong, but link to the source rather than just your opinion so we can all learn.

    Screenshot 2021-01-27 at 11.51.28 (1).jpg
    4
    @warata @RealZac
    hi, I did succeed enabling dark theme in google maps. you need to set your screen DPI lower (like a phone DPI instead of a tablet DPI) before opening google maps, this way you'll trigger google maps "Theme" feature in its settings. After that, you can revert back to the default tablet DPI.

    To change the screen DPI, go to developer options (enter password, I think "3368")
    Scroll down until you find "Smallest width", change it to 411 dp.
    Then open google maps, and you'll get the "Themes" feature

    [[ Memorize the default DPI to revert back later ]]

    if you want to enable "System-wide dark theme" on whole android 10. you need ADB & usb cable. I used this app "

    Automatic Dark Theme for Android 10" from playstore

    4
    to get ADB on UIS7862 unit, read @gottahavit reply, thanks to him

    Thank you very much! I made a video because I think the method you think is very beneficial to those who own other models.
    4
    I've decided to release CC3 to the public. Have fun. Manufacturer ID is set to 43. I am not responsible if you brick your unit or it explodes. I will provide 0 support. Do not PM me. Do not flash unless you know what you're doing or have a recovery update package to revert back to stock.
    https://mega.nz/file/aYhyFCjJ#BbF7piHxK1zkOxcNfYHecUEofafEPiDfoq4Ux5SsGZY