yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] hoalcraftbilly:
I have tried renaming the hotspot and it doesnt do anything. Thanks for the file. I appreciate it.
[Android Head-Units] TorstenH:
Have you enabled "Wireless Android Auto" in Android Auto developer settings on your phone?
[Android Head-Units] hoalcraftbilly:
Yes, wireless android auto in enabled on the phone. I just don't think it will not work until the seller releases an update with all the other associated files that will never happen.
[Android Head-Units] TorstenH:
Have you tried with another phone?
[Android Head-Units] hoalcraftbilly:
Yes I have tried with a Galaxy s22 Plus and a Motorola One.
[Android Head-Units] hoalcraftbilly:
This is the error I get in the crashlog
[Android Head-Units] Dyland98:
Is it possible to provide an AutoLink apk directly activated for wired carplay ( i have only wireless carplay activated on autolink ) please ? ( and i think the channel is tengshi and not dengwei and every t-link,... i have found are dengwei channel and are not working when i want to connect my phone ) Thank you :)
[Android Head-Units] TorstenH:
I think I will create first an installer app for CarLetter. Let me know if someone is interested and willing to perform some tests...
[Android Head-Units] PrinceLc:
I will test mounted the other headunit with ZLink 5 installed it works like a charm of course but CarLetter is good too
[Android Head-Units] TorstenH:
I'm not sure if the channel is just a property of the Zlink app. I could try to patch the channel in the apk so you need to point me to the latest Zlink apk.

Are we talking about a MTK825X device here?
[Android Head-Units] Dyland98:
I tried this apk ( 2.0.17, already activated) from the "T-Link versions" thread, but it's for dingwei channel, and here is a second apk ( 2.0.18 it's an unmondified apk so it's not activated and also not for tengshi channel)

I can also help you to test a carletter apk that is already activated, you just have to tell me what to do, in fact I just want an app that work for wireless and wired carplay ( i'm currently using autolink for wireless carplay and phonelink for wired but phonelink is not reliable for me ).

I don't have a Junsun V1 pro but another device that is MTK825X and i updated it to the v90.
[Android Head-Units] Dyland98:
How do you do to patch the apks ? i tried with apktool but everytime i rebuild and then install it, it freeze when i launch the app
[Android Head-Units] TorstenH:
I'm using apktool, so nothing special...
[Android Head-Units] Alfarroba:
+1
[Android Head-Units] TorstenH:
First try of a CarLetter installer:

- carletter.zip (contains the modded CarLetter app) needs to be placed (as it is - don't extract) in Download folder

- carletterProp needs to be extracted. Put the prop file on root of internal storage

- 2nd option of MainUiUpdater allows to install CarLetter as system app

- Check factory settings (8878) and select CarLetter to avoid a deactivation of CarLetter on each reboot

Your feedback is very welcome. Please post a picture of the MainUiUpdater in case of issues...​
[Android Head-Units] Dyland98:
For me it doesn't work, i put carletter.zip in the download folder and carletterProp on root, the MainUiUpdater is installed, i open it and click on update carletter but after clicking on update the app ( just the name of the unit and 'permission granted' are shown on the screen ) seems to freeze and go again on main page of the app. After I rebooted the unit and the carletter app crash and doesn't open at all, I will try, maybe tonight if i have time, to give you the log of the unit (i decompressed the zip on my laptop and it could be caused because of the lib are for arm64 and the app is normally for armeabi-v7a, maybe it's a clue but I could be wrong )
[Android Head-Units] Alfarroba:
Are reboots needed at some point?
[Android Head-Units] TorstenH:
I think after last step should be sufficient.
[Android Head-Units] TorstenH:
The extraction of the zip file may take a while. But if the app returns to main screen by itself you may find a "fatal" message in the Android log.

But that means that CarLetter was installed by MainUiUpdater or are you just try to update CarLetter?

I'm not sure if the lib folder is required but it's present in the v90 firmware in the /system/app/carletter folder.
[Android Head-Units] Dyland98:
For the extraction i think it work then because there was no errors, and i installed it by MainUiUpdater i didn't decompress the carletter zip in the download folder, i'll go now to my car retry and retreive the logs
[Android Head-Units] Dyland98:
Here is the log for the carletter crash
[Android Head-Units] TorstenH:
Could you please send me the log of MainUiUpdater after clicking on "UPDATE"?
[Android Head-Units] Dyland98:
Here is the log, i tried to click on update around 17h11, i checked also the path /system/app/carletter/lib/arm64 to see if libhitrace.so was here and it's here, the only difference are the caps in the folder name as you can see in the up right corner in the picture
[Android Head-Units] TorstenH:
Could you please send me a photo of the screen after you clicked on "UPDATE"? I would like to see the log which gets displayed on the UI itself. (-:

Linux is case sensitive so "CarLetter" is not "carletter". I'm only using lower case in MainUiUpdater and checked that by searching in all files of the project. Was carletter already installed on your unit before you tested to install it with MainUiUpdater?
[Android Head-Units] Dyland98:
I put the picture, there is nothing on screen log just the name of the device and "storage permission granted" and then when i clicked on update it just return after 15 second to the main page of the app but nothing more is shown on screen. :/ and yes it was already installed because i changed autolink to carletter from the 8878 menu

But i think i found the issue i went to /system/app/carletter/lib/ ( without caps ) and arm64 is not a folder it's a file as you can see on the picture, so maybe it's for that it didn't find the lib.
[Android Head-Units] Alfarroba:
Nothing so different from the rest. Carletter doesn't open (and by the way now is not possible to unninstall or disable the app).

Attached two logs in two different tentatives of setting up.

Also in 8878 menu Carletter do not show up. Photo attached. I decided to unchek Alink.
[Android Head-Units] TorstenH:
Could you please check if you can find a "carletter" folder in Download folder? There you should find the content of the zip file.

Can you find a fatal message / error directly after MainUiUpdater returned to the main screen of the app?

Which firmware are you using? Seems like CarLetter was already installed in "CarLetter" folder. Not as expected in "carletter".

Please check extracted data in Download/carletter. Is arm64 there only a file, too?
[Android Head-Units] TorstenH:
Re-zipped carletter.zip

Updated MainUiUpdater to consider /system/app/CarLetter

https://xdaforums.com/t/junsun-v1-pro-mtk8259-mtk8257-firmware.4283365/post-88810243
[Android Head-Units] Dyland98:
I will check tomorrow because i'm not at home anymore, i'm using the v90 and yes carletter was already installed, I will also try tomorrow your new files, i keep you updated, thanks :)
[Android Head-Units] scumm:
How do you use your own custom boot logo image? In the logo selector screen i have a big magnifying glass icon on the left but it shows an empty page when i select that.

I heard in other places that it needs to be 1024x600 BMP file. Is that the case for this as well? I believe these MTK8259 units have resolution of 1280x720, and that’s what CPU-Z reports for mine as all, so what size should the logo file be?
[Android Head-Units] PrinceLc:
1280x720 png file place in root of your headunit
[Android Head-Units] Alfarroba:
@TorstenH

Carletter doesn't open (now is not possible to unninstall or disable the app).

Attached two logs in two different tentatives of setting up.

In menu 8878, Carletter do not show. Photo attached.

I decided to unchek Alink.

Tomorow I will try the new version.
[Android Head-Units] TorstenH:
Updated MainUiUpdater once more. Please test with version 0.17alpha.

Thank you.
[Android Head-Units] scumm:
Thanks will give it a try.

Do we know whether UI 4.0 will be coming to 8529? Or will that only be available for newer chipset?
[Android Head-Units] PrinceLc:
Good question I don't know but I think ui4.0 is the new interface where it switches to dark mode when the lights are on and it's already there in v90
[Android Head-Units] Alimsbaee:
Thanks a lot for your efforts.

I'm getting read-only file system error when trying to use MainUiUpdater. Any ideas?
[Android Head-Units] TorstenH:
Please send me a photo of the MainUiUpdater screen showing the "About" section. Just want to see what type of head unit you have.

And it would be great if you could send me the log you see in MainUiUpdater after clicking the "UPDATE" button.

Thank you.
[Android Head-Units] Alimsbaee:
My head unit is 825X_Pro. Sorry for not sending the screenshot, I can't reach the car at the moment.

I'll send you both image and logs tomorrow.
[Android Head-Units] TorstenH:
I updated MainUiUpdater (v 0.18alpha) to show the remount command which gets derived to make the system partition writeable.

This may help to find the reason why you're getting that error.
[Android Head-Units] TorstenH:
I would like to suggest AppSwitcher which enriches your SWC mode button and has an auto dimming option to make night drive more comfortable.

AppSwitcher v3 - smart SWC launcher (for Junsun, Xtrons, Ossuret, Hizpo and similar devices) incl. autostart

AppSwitcher v3 SWC (Steering Wheel Control) app launcher Stay focused on the street and don't touch the head units display to switch between apps. Support the development of this free app via ko-fi.com/appswitcher

xdaforums.com
[Android Head-Units] Alimsbaee:
I'll give it a try.

Just a question please, is "/sdcard/carletter.prop" the right path for the prop file? if not, then I can neither move it to the absolute path "/". I'm getting a file system error too.
[Android Head-Units] TorstenH:
Yes, that's the right path.
[Android Head-Units] Alimsbaee:
BTW, most of the MainUiUpdater errors were about the remove command: "rm -rf ......"
[Android Head-Units] TorstenH:
These are consequential errors because the system partition is not writable.
[Android Head-Units] TorstenH:
But the hint was great. I changed the logic once more a bit. Please test with 0.19alpha I added a few seconds ago.

https://xdaforums.com/t/junsun-v1-pro-mtk8259-mtk8257-firmware.4283365/post-88810243
[Android Head-Units] Dyland98:
i tried the 0.19alpha but there is also an error as you can see on the log :/
[Android Head-Units] TorstenH:
Nothing to be worried about. I attached 0.20alpha which should continue process...
[Android Head-Units] Dyland98:
There is a new error, and also now carletter doesn't open at all
[Android Head-Units] TorstenH:
Could you please check the folder Download/CarLetter.

It should contain the apk, a "lib" folder and inside the lib folder another folder "arm64" with a set of so files.

Can you confirm?

And in /system/app/CarLetter you should find the same structure. Can you find the so files?
[Android Head-Units] Dyland98:
I checked and in Download/CarLetter it's good but in /system/app/CarLetter/lib there is just a file named arm64 not a folder
[Android Head-Units] TorstenH:
Okay. Strange issue. I will check that and provide an update asap.

Please stay patient...
[Android Head-Units] Dyland98:
Ok no problem, thank you for your time
[Android Head-Units] valentin_nichita:
I just found out that I have already activated CarLetter, I've previously bought an activation code for AutoLink for Wireless CarPlay and Android Auto.

Can someone tell me what are the differences between AutoLink and CarLetter? I've seen a sudden interest in CarLetter now, but can't understand why
[Android Head-Units] Alimsbaee:
I tried the 0.19alpha, and I believe it got stuck at some point (folder system/app/CarLetter). So I installed it manually from "system/app/CarLetter" and it worked as expected.

Now I have two problem:

Many times when opening CarLetter app manually it crashes immediately (I have to wait for it to be opened automatically after enabling my phone BT).

It takes long time to connect the Android Auto. Meanwhile the HU hotspot network created by CarLetter is being restarted many times till got recognized by the phone (Galaxy S22 Ultra).

@TorstenH
[Android Head-Units] Alimsbaee:
For me, CarLetter helps to easily connect Android Auto and Apple CarPlay wirelessly rather than AutoLink which fails most of the time.
[Android Head-Units] valentin_nichita:
I've tried it those couple of days and the only difference with AutoLink is that it opens a little faster and sometimes music starts automatically. The only connection problem I've had with my unit is that CarPlay was kinda unstable with PhoneLink (so when I connect it with USB). From what I've seen neither AutoLink or CarLetter has USB connection for CarPlay...
[Android Head-Units] TorstenH:
Changing file permission after copy with version 0.21alpha

https://xdaforums.com/t/junsun-v1-pro-mtk8259-mtk8257-firmware.4283365/post-88810243
[Android Head-Units] Alfarroba:
With me on previous version is like this
[Android Head-Units] Alfarroba:
On the new version
[Android Head-Units] TorstenH:
Log looks good, now
[Android Head-Units] apm90:
Hi Guys, im new here and i checked some threads but i cant find anything.

i bought a week ago this head unit: V1 Pro C (2GB 32GB) A

i talked to Junsun because i want to do the update from ui3.0 to ui4.0 .... they send me an update file 海外MT8163_AJ_2023.06.07.18_3.zip .... i checked the file and installed it, but no UI4.0! everything still the same.

can somene help me? is there another update file that includes UI4.0?

can i use the file i found here in this thread 8667Q军灿UI02-国外-1280x720_v34_20230703.zip ?

this is my current head unit informations:
[Android Head-Units] wojtekh1966:
With me on version MainUiUpdater_0.21alpha is like this
[Android Head-Units] TorstenH:
Could you please retry after a reboot and post the log again?

CarLetter was already present on your system. Did you had connection issues and want to update CarLetter or an activation issue?
[Android Head-Units] wojtekh1966:
activation problem does not connect
[Android Head-Units] TorstenH:
I will try to figure out how we could make some free space... I will provide an update asap
[Android Head-Units] mahmoud.hassib:
hi

TorstenH sorry for the very late replay regarding extracting Main_Ui.apk can you give me a quick lead to its path and will you need it extracted from the running android install or the firmware its self?​
[Android Head-Units] Dyland98:
Thanks me it's working now , carletter is running, carplay wireless also, but it's not possible to put it in wired ? for me it's only working in wireless and there is some delay with audio ( was the same with autolink )
[Android Head-Units] PrinceLc:
I have CarLetter preactivated from beginning and wired Android Auto was not working too only wireless. I figured out that the cable was detected but immediately it went wireless
[Android Head-Units] scumm:
Got the custom boot logo working 😎

Has anyone had any issues with retaining radio station presets in the stock radio app? Whenever the unit reboots, all the scanned stations disappear and it has to scan again.
[Android Head-Units] TorstenH:
To find the root cause

a) remove usb drive, reboot and try again to save station.

b) unplug CAN box and try again.

Please note: changing factory settings (8878) erases settings like radio stations, equalizer and maybe more.
[Android Head-Units] sgouedj:
Hi,

I installed the latest firmware version on my 825X_pro. Overall, it works very well, few differences with the previous version. .

However,

1- I still have the Android auto (wireless) random connection problem. I've read a lot of posts on this topic but haven't found a solution yet.

2- I would like autolink (Android auto)(sd2.019) to start at startup. How to do ? Currently, Google maps starts automatically.

3- I would like to reconfigure the (physical) buttons of the unit. is it possible? to have a button for radio and another for autolink?.

Thank you in advance for your help.

Cordially
[Android Head-Units] PrinceLc:
strange thing from one day to the other carletter wont connect anymore wirelessly. it is still acttivated
[Android Head-Units] TorstenH:
Topics 2 and 3 and more are covered by AppSwitcher:

AppSwitcher v3 - smart SWC launcher (for Junsun, Xtrons, Ossuret, Hizpo and similar devices) incl. autostart

AppSwitcher v3 SWC (Steering Wheel Control) app launcher Stay focused on the street and don't touch the head units display to switch between apps. Support the development of this free app via ko-fi.com/appswitcher

xdaforums.com

Watch the video of first post to get an idea how to switch between apps. Further details are available in AppSwitcher thread.
[Android Head-Units] TorstenH:
Here you can find a newer version of AutoLink:

https://xdaforums.com/t/junsun-v1-pro-mtk8259-mtk8257-firmware.4283365/post-88802643

Just click on the apk file on the head unit to update. It may (or may not) fix the connection issues.
[Android Head-Units] scumm:
Ohh i think that might be it, it did seem intermittent. I’ll stop messing around in there and see if it stops resetting.
[Android Head-Units] TorstenH:
Here the description how to get the MainUI.apk file:

https://xdaforums.com/t/appswitcher...-devices-incl-autostart.4593865/post-88674673

If you have a zip file of the firmware please also share the file name of the zip. A readable description of the MainUiUpdater "About" section would be nice, too.
[Android Head-Units] t33t:
With firmware v81 my volume mixer level is locked for all outputs. Does anyone know how to set per output levels for this version? Previously i had one level for meda, other for call, seperate for navi etc. Right now, everything is locked as one level. It is really annoying when i listen music on normal level, phone call is too quiet.
[Android Head-Units] Bobec111:
Hello

I get update files with new BMW UI ID8 and junsun UI for bmw HU for mtk 825x when I try to update I gettin error FAIL, check usb and files last time when I was doing update was without any problem now I’m running this version

8259P_宝马UI02v1920x720-国外_v77_20230129.zip

drive.google.com

Here is a link for UI ID8

8259P_宝马UIiD8v1920x720-国外12_v10_20230417（ID8）

MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.

www.mediafire.com

When I plug in the usb comes popup update start in second then reboot then says yellow detected and then fail

I tried two different USB’s same result has somebody idea why I getting this error?
[Android Head-Units] Bobec111:
Problem solved a tried with third USB stick probably problem was the two previous USB’s are too new and don’t FAT32 format with old without any problem

Here are few pics and of course android is still 9.0 not like Chinese says is 11, not and never will be newer than 9 I think
[Android Head-Units] TorstenH:
AppSwitcher works on v90 with modded MainUI. 🎉

@Krouweeltje thank you for testing and confirmation:

https://xdaforums.com/t/appswitcher...-devices-incl-autostart.4593865/post-88826947
[Android Head-Units] zin15:
Hi. can you give us the id8 ui too. you have menu to be able to change ui between them. I can't change the themes between them
[Android Head-Units] Bobec111:
Hi link is in the post above, and you can not change UI its only one UI you can change themes but its just 3 colours, gold, red, blue nothing special, one benefit is you can add as much apps you want to main screen
[Android Head-Units] leo231:
Hello,

I bought a Junsun V1 Plus (4gb/64gb) for Hyundai Tucson and just installed it.

It comes with CarLetter app for android auto/carplay, but I have some issues with it.

If i connect my phone with bluetooth, the carletter open automatically, but the connection will not trigger on carletter app and on my phone I have a notification: " Looking for Android Auto", on carletter the bluetooth icon turns green.

If i try to connect my phone with cable, an blue ring loading animation show up on carletter and after few seconds the app crash.

Any advice please?
[Android Head-Units] PrinceLc:
Open hotspot on the headunit see if 5 GHz is active, connect your phone with the hotspot of the headunit and wireless AA or Carplay is working
[Android Head-Units] Binov77:
Hello everyone, I need your help.

Since 3 versions, I am currently on the latest (v90) it is impossible for me to operate the PLAYSTORE.

This one opens normally however as soon as I click anywhere the app closes automatically. To install the applications, I have to go through my phone or my tablet.

Thanks for your help
[Android Head-Units] crosseel:
Hi guys,

I just updated my 8259P to V90 and trying to change autolink to Carletter. Getting QR codes that carletter software is not activated.. How do i activate?

Also for those who are wondering the UI 4.0 does not let you change the page layout of the homescreen. Only thing that can be done is to add/remove apps on the right application tile.. In my case is am stuck with a unusable DVR tile on the left..

The change of layout suggested on the screenshot is not possible..
[Android Head-Units] PrinceLc:
This UI 4 is not ready I guess maybe it's in testing, but I don't know I am on v90 too but I use Agama carlauncher
[Android Head-Units] DenisBeljata:
Hello guys,

I've installed today one Junsun V1 Pro 8G+256G For Citroen C5 2008 - 2017 device on my Citroen C5 X7, but have problems and do not know what to do.

1. The device arrived with CAN module, but it doesn't appears in the info page (you can see in the attached photo)

2. Have no control from steering wheel (I did all that is written, but no result)

3. I have no signal from the parking sensors

4. Have no chance to get in to the car settings in the device

I bought it from here:

https://www.aliexpress.com/item/1005005135815904.html

Have no idea what exactly is my processor.

I took a photo from the About page and one from the cardboard case of the device.

Can someone advice me how to proceed?

Is there a new firmware for my device?

Thank you in advance

Best Regards

Denis
[Android Head-Units] PrinceLc:
Did you attach all tha cable correct ? The harmes with canbus must be connected as well to the radio for steering wheel detection. In the canbus settings the right car selected ?
[Android Head-Units] TorstenH:
Please enter factory settings.

Here I linked a video how to enter the setting. Please use the code 8878 and don't mess around with other codes before knowing what they do!

Check the CAN Type settings. In case the wrong CAN type is selected all the things you listed will not work or only work partially.
[Android Head-Units] DenisBeljata:
The cable to the CANBUS was attached. I just connect it to the right place on the back side of the navigation.

TorstenH tod me where to find the settings, but my car isn't listed.
[Android Head-Units] DenisBeljata:
I found the settings, THANK YOU..... Just can't find my car in the entire list :(

There is button Import, but I have no idea where I can find my exact car from .
[Android Head-Units] PrinceLc:
Go in setting car settings see pictures. My car is a VW so I have an other Can setting
[Android Head-Units] DenisBeljata:
I found them and tried really big ammount of "car models"... Just one base PSA setting worked partially. Not all functions are there. If I select Citroen C5 (nomater which year) the menu shows all important functions, BUT NOTHING from them works.

Thank you for the support!
[Android Head-Units] TorstenH:
You can try to use code 0129 to check if CAN messages getting visible. E.g. as soon as you open the doors or press SWC buttons. At least we will see if the CAN box recognizes the CAN signal and if it's "just" a translation error.
[Android Head-Units] TorstenH:
Added link to v94 firmware to first post
[Android Head-Units] kelevra83:
Guys I still have the original firmware and I wanted to update it with the latest . But the update doesn't start automatically, I have the 4+64 model as in the picture.

How can I start the update from a USB stick?