yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] tallaploomi:
Which unit has the AF working then, what to look for.

Ive been using Navradio and i dont have RDS, lost RDS on original radio app also.
[Android Head-Units] soliditalstud:
Hey having a problem that is weird. So upon initial boot after install works. Scans FM but will not scan AM. Am doesn’t work at all just static.

Also after I set it up. If I close the stock radio ap running in background NavRadio stops working no sound. If I launch it again just crashes. So have to uninstall and install again to work

I have had to repeat this process couple times. Right now I just uninstalled it

Any ideas?
[Android Head-Units] soliditalstud:
Is there a way to backup stock rom without rooting?

I want to install the k481_OH rooted 2024 but before I do I wanted to backup in case of any issues
[Android Head-Units] Petr Siler:
thank you very much for that file. but when i install it, it says app not installed. probably due to older version than installed, any idea how can i force this installation ? (i look in setting, application, car info, but i cannot uninstall updates).
[Android Head-Units] Petr Siler:
i tried local update, and it looks i get in big problem, i t stopped to comunicate with canbus decoder. Everything stopped to work, remote control from steering wheel, reverse camera..., and all the features connected to canbus decoding. now in app it doesn't show me canbox version . So i need to at least reinstall the current version ...V.24 back. can you somehow help me ? it even don't shutdown the radio when i remove the key.
[Android Head-Units] tarabakhariya:
Dear friend, did you try as I suggested above in picture? I tried it again. I just upgraded to V24 and followed step below to downgrade to V22. Please see the pictures below.

1. Go to Can Type and press Upgrade. Pic 1&2.

2. It will take you to another screen. Pic 3

3. On My car, there is an option of MORE. Click it, if it is ticked the untick it, if untick then tick it. Pic 4.

4. Go to Upgrade and click check. It will start downloading V22. Pic 5
[Android Head-Units] Egooo:
Can anyone give me a link to the latest rom for our NWD radio? I will be grateful
[Android Head-Units] Petr Siler:
I appreciate your help really, but for me it doesn't start download any older version. Even in manual update in button "MORE" it shows me that version 23 updated but no differences. . I am now in situation that the canbus decoder doesn't show the version and it doesn't communicate with my car anymore..... crazyness....
[Android Head-Units] tebukan:
Hi, I think you need to try downgrading the software. Download the 3.7 GB recovery software on page 6. Do what I say step by step. Download the 3.7 GB file and zip it on a computer with a Windows operating system. Then the update folder that comes out of the zip. Dump the update file on a flash drive formatted as fat32. Do this on a computer with a Windows operating system. Then insert the flash memory into the unit's 4-pin USB port and restart the unit. It will start installing automatically. Do not remove the flash memory until the process is completely finished. Then, if you want, you can install it in the current version
[Android Head-Units] Petr Siler:
Ok, if it is only choice i will do that , to be for 100% sure, can you share with me the file ? or link, to get it. My version is K4811_OH_212304...
[Android Head-Units] tebukan:
K4811_NWD_S212851-20220928 - Google Drive

drive.google.com
[Android Head-Units] tebukan:
Don't worry this software fits. Then I will also give you the current software link. Perform a factory reset before performing the operation. It gets better
[Android Head-Units] Petr Siler:
Ok, so i installed it , you can see on pictures. But the app version stays V.24 and also it still doesn't communicate with canbus.
[Android Head-Units] tebukan:
Can you also install and try this apk
[Android Head-Units] Petr Siler:
unfortunatelly it didn't install it see picture. i don't want to mix the issues, but i think, i start to have a problem with my canbus decoder box, does it have any firmware separately ?like that option "local update can_app.UPG" is possible that this is upgrade file for canbox version ?
[Android Head-Units] tebukan:
Since the problem starts with the software, I think it is a problem with the software in the first place. You uninstall the updates of the application you are trying to install from the applications section and try to install it again. If there is no result, it is necessary to look at the solutions related to the canbus box
[Android Head-Units] Petr Siler:
Problem is there is no way to uninstall it...
[Android Head-Units] Petr Siler:
Doesn't help , unfortunatelly, before i order a new one from Aliexpress, do you know if there is way to update it ? trought that can_app.UPG file ? like reinstall it ? is there any possibility to download it somewhere ?
[Android Head-Units] tebukan:
I don't know about that file, but maybe they can help in the telegram channel. K4811
[Android Head-Units] sunilkumarsharma:
How to upgrade this ?
[Android Head-Units] marchnz:
Keep at xda for the win!
[Android Head-Units] tebukan:
Yes, of course. I'm already doing my best here. But unfortunately, the friend's solution is not here at the moment
[Android Head-Units] sunilkumarsharma:
Hello. Please tell me how to update apk file in headunit? Thanks
[Android Head-Units] Petr Siler:
Hello , so i have few comments/information for you. I was finally able to downgrade the "car info"application to version V.22... from V.24 . When, i use aplication "My car"and scan for new version of CAN APP it generate a barcode, when i logon to page from the barcode i choose older version and at that moment it downloaded the version which i choose.... my problem was, that i cannot scan the barcode and didn't understand the logic.... So finally it works . But it doesn't solve my issue with canbox version, it really looks its dead....i will order a new one. Thank you for your support
[Android Head-Units] tebukan:
Thank you very much for your information. You've tried everything. As you said, there is no choice but to buy a new one.
[Android Head-Units] Petr Siler:
Maybe i have one more question to you. Is there any way to put the headunit to factory state, i mean do something like wipe data and wipe cache as on mobile phone, I was suprise that for example mp3 files on my headunit stays, even i putted your 3gb package...
[Android Head-Units] tebukan:
2 There is a way to reset. You can try it. 1.si in the factory settings menu, 2.si in the device settings menu. Password 1234 to reset in the device settings menu
[Android Head-Units] Egooo:
how to set navradio as main radio?
[Android Head-Units] Zinbelman:
Gramont people said that, unfortunately, there is NO WAY on our platform!!!!!
[Android Head-Units] soliditalstud:
Anyone having issues with NavRadio AM not workin? I tried to auto scan but it basically scanning AM stations but FM mhz is playing.

My radio does support AM, stock radio app works what’s weird is that if NavRadio in background and I change the stock radio to am shows as 5.90mhz for example instead of 590 for here in Canada
[Android Head-Units] elSiro:
I answer myself. I've checked that disconnecting the canbus box works perfectly. If someone has the same problem, they can try to do the same as me. My vehicle is a Toyota chr hybrid with jbl radio and navigator as standard. Which canbus should I install?

This is my current setup.
[Android Head-Units] mulderfbi:
I can confirm that when "ILL" cable is connected to headlights it does dim the brightness of the display.
[Android Head-Units] haitham1979eg:
Dear sir can I use this firmware for this my device see the picture

The old one was NWD and I upgrade to the one in attached picture but I need to return back to NWD because the style has 13 launcher instead of one in new firmware
[Android Head-Units] gunit50:
Hello. I own a 6/128gb unit with k4881_jyt_s217666.20231213.17 and I would like to update it. Which firmware should I choose for my unit?Regards
[Android Head-Units] haitham1979eg:
Dear friends,

I purchased a 9-inch screen with the following firmware from AliExpress:

K4811_NWD_S217206.20240305.154416.H5D9.O1F

After receiving it, the radio stations were not saved. The seller provided me with an update file:

K4811_HDKJ_S217101.20240315.182137.H509.01F

After installing the new firmware, the radio works fine. However, the UI now has only one launcher instead of the previous 13, and the icon and setting colors have become monochrome, with the same font color throughout.

I'd like to revert to the previous firmware, mainly for the UI. Could someone please guide me on how to do this?
[Android Head-Units] PrideTheArrogant:
Hello, everyone. I have purchased a Ruancheng A6 with K4811_OH. Everything works except... audio. I also tried connecting PC speakers to the Audio Out connectors, but audio is very low and there is a loud rustling sound.

Connecting bluetooth speakers, these sometimes work. If I reboot the radio, sometimes they work and sometimes the don't (even though the speakers appear to be connected via Bluetooth).

I have updated the firmware with one find here on the forum, but nothing has changed.

Does anyone else experience these problems?

Thank you
[Android Head-Units] elSiro:
Directly connect the wires of a speaker to the output cables of the radio to check if it has an audio signal. The same thing happened to me, I have an external amplifier and the canbus box didn't activate it. I changed the canbus and the audio worked
[Android Head-Units] elSiro:
I'm trying to connect vLinker MC+ but it doesn't detect it. I do it with the tools app that comes pre-installed but it only sees an iPhone bluetooth connection. Interestingly, it can be connected although it cannot be used with the Hybridassistant app (android).

When I search for the connection in the pre-installed phone app, it shows both connections for iPhone and Android, but I try to connect on Android without success. Is there any other way to connect or configure Bluetooth? I have downloaded external applications but I couldn't either.

With my Xiaomi phone the vlinker works correctly
[Android Head-Units] Oldbiggy:
Hello. I have a Ruanchen A8 head unit with OH firmware, a few days ago every time I start the car it starts dialing a 100000 phone number. What could be the problem? Thanks.
[Android Head-Units] promim:
Cıhazdan usb yi çıkart
[Android Head-Units] NickFuryGT:
Hi everyone someone know how to setup a dynamic boot logo on the K4811? Thanks in advance
[Android Head-Units] zware62:
You need to place zip file on usb stick to be visible on hu. here is instruction i have found on telegram channel (auto translated from Russian, i have done it based on instructions and it worked for me, similar is for boot_logo) :

if you have downloaded flushable bootanimation extract it in the extracted folder go to system --> media --> bootanimation.zip and copy it

1.Create a folder called dynamic_boot_logo

2.Put the bootanimation file in the folder (do not unpack the file)

3. Place the folder with the file on a clean flash drive (FAT32)

4.Connect the flash drive to the radio

5.Go to the engineering menu (code 16176699)

6.Find the item "Dynamic logo settings"

7.In the RIGHT window, click "Dynamic logo settings"

8.Choose your bootanimation

9.Click at the bottom “Setting up a dynamic logo”

10.Click “save” (in the upper right corner) The radio will reboot.

11.Done.
[Android Head-Units] Rivan7777:
Hii..

I had the same problem..I bought this canbus..and everything works fine..I have the same car Toyota chr hybrid with jbl..you well setap toyota corolla

https://www.aliexpress.com/item/1005006719481146.html?spm=a2g0o.order_list.order_list_main.10.1e801802np2w9X
[Android Head-Units] Dorin1985:
Hello friend! Can you help me please with the firmware K4811_HDKJ_S217101.20240315.182137.H509.01F ?
[Android Head-Units] VirkG:
Hello everyone.

I need help.

I cahnge the Firmware from LG version to OH version now it stucks sometimes and also not working good like LG version.

In Lg Version it now working for Ac options .

Other things was good.

Now with OH version Touch not workibg good no Camera or Blur. I Change settings also it nothing happend.

Now i want to use my old Version but it Shows i cant.

Please help me or show ne the Method.

I also Try the Nwd from Page 6 full Flash but its not booting. From usb.

Thanks
[Android Head-Units] luisfebar:
Working ok

http://gofile.me/5XBW5/aNyOH4LMM?spm=a2g0s.imconversation.0.0.64733e5f3B7tq5
[Android Head-Units] Dorin1985:
Thank you very much for firmware and your promptness!
[Android Head-Units] tarabakhariya:
Can somebody suggest where do I get K4811_UPGZ_S212707 . 20231023. 103340 ? Or later version of this? Thanks
[Android Head-Units] Dorin1985:
Hi guys! Help me with a problem: I have an android radio with firmware k4811_HDKJ, I have installed the reversing camera CVBS_NTSC. I also installed the same CVBS_NTSC camera model on the front that works on the AUX input channel. When I click on the F.Camera (front camera) icon, I get no signal. I checked the Front View option in Factory Setting, but in BackCar Setting, only the rear camera settings appear, the front one does not appear. Can you help me how to make the front camera work automatically for a few seconds as it is set when I take out the reverse gear. I would like to find the setting for the front camera to function on F.camera and not on AUX. Thank you!
[Android Head-Units] marchnz:
What does seller suggest when contacted for support? What has been read and tried on these good times xda forums?
[Android Head-Units] mulderfbi:
Front camera is not the USB connected camera. Most units (even if they support front camera) don`t have the RCA attached, so you can`t just plug the camera. If you don`t have CVBS-IN-2 RCA cable, you most probably have an empty spot in your 20 pin cable. See attached picture. There is the front camera on my unit. I found out this by myself :)
[Android Head-Units] Dorin1985:
Hello. Thank you for your response!

I checked if there is a free pin out of the 20. unfortunately, all the pins are occupied. I'm interested in where I connect the video input from the front camera. the power to the front camera is switched on. when I take out the reverse gear, the navigation switches to the front camera, but there is no signal. I repeat, if I click on the video aux icon in the camera, there is a signal and I have a picture. I can't find any setting that can set the front camera on the aux channel.
[Android Head-Units] mulderfbi:
There is no option to set the AUX camera as a front camera. What is connected to the pin I pointed out?

Make sure you are holding the socket the right way, when you look at it.

On the picture I have attached I've marked the two CVBS inputs A19 should be your AUX camera connected to right now. The A2 should be the front camera input. There is a possibility that your unit does not support front camera from the factory, despite the fact that you have F.Camera app. Keep me posted.

P.S. do you know if your unit has a 360 camera support and has the 12 pin socket? Send me the link where you got your unit from.
[Android Head-Units] Dorin1985:
Hello! thank you very much for the attached picture. now my face camera works. I removed the aux pin and moved it to pin 2. I solved the problem very easily. now I have the aux channel free for another video input. Thank you again.
[Android Head-Units] Dorin1985:
Hello!

Thank you once again that I managed to make the front camera work.

I would like to ask you something else

- in the 20-pin plug there is also a MIC IN, if I connect an external microphone, do I have to make other settings in the android unit to activate the external one or does the internal one deactivate by itself?

- what setting do I need to make on the radio to keep its memorized radio stations. after turning off the unit, they are lost and must be memorized again. they are stored as long as the unit is turned on. after restarting they are no longer saved.

Thank you!
[Android Head-Units] mulderfbi:
Glad I could help :)

-no additional setting need to be made when you connect ext. microphone. On our units the internal mic. does not disconnect when you connect ext. mic which leads to almost no positive effect. You need to open the unit and disconnect the int. mic from the board. Then you can expect something positive to be achieved. I don`t use it, so i haven't tried it. You could try and set the mic Gain settings to the highest settings in the Factory settings menu ( i think it was 7 ) but there is no guarantee that you will be heard clearer. You could always try :)

-unfortunately the radio cannot be set to memorize the stations after restart. This is a common problem, and there is no fix for now.

Brightness and volume settings also go back to default after restart. The only solution for now is to keep the radio in sleep mode.

P.S. do you use " Recorder " app ?
[Android Head-Units] m00n61:
Actually, there is a workaround. Use Navradio beta for K4811 and your station will be memorized in navradio.
[Android Head-Units] Dorin1985:
O

Thank you!. I tried that
[Android Head-Units] mulderfbi:
Yes, I know about Navradio, but there is no guarantee that it will not cause any problem. I` ve heard that some people with K4811 units had some issues with the sound, and since I don`t use over the air radio and have not installed it I can`t recommend it. Some are happy with it, some are not, so everybody is free to try and decide for themself :)
[Android Head-Units] skippyd:
Attached is the Videos on how to update your player
[Android Head-Units] skippyd:
How to fix your front buttons that quit working after update.

https://drive.google.com/file/d/1Lk96ESgjqMygsazPlNbasjuVb_1V1C1p/view?usp=sharing
[Android Head-Units] dakovico:
MOD TRANSLATION

"They have answered me, they have sent me the original recovery of the firm that occupies 3.7gb and is installed through the 4-pin usb. The recovery has been successful but the radio is not completely stable. Sometimes it crashes. I leave you the update link."

大师云文件

dashi.163.com

*******************************************

Me han respondido, me han enviado el recovery original de la firma que ocupa 3.7gb y se instala mediante el usb de 4 pines. La recuperación ha sido exitosa pero la radio no es del todo estable. A veces se bloquea. Os dejo el enlace de la actualización.

大师云文件

dashi.163.com

dakovico, As per Forum Rule 4 (quoted below), please only post in English. As a one time courtesy, this post has been translated. If you do not know English, please use any of the resources in the quote. You can feel free to post your original message under the English message.

--simplepinoi177 FSM (Forum Specific Moderator)
[Android Head-Units] Csabo80:
Hello, van firmware frissítés a képen látható fejegységhez? Köszönöm a válaszokat.
[Android Head-Units] Csabo80:
Ez a verzió jó nekem?

Feladás a 'JMANCE K4811' szálban https://xdaforums.com/t/jmance-k4811.4535967/post-88300813
[Android Head-Units] m00n61:
What device is this update for? K4811_NWD or K4811_JYT? And what is the new software date?
[Android Head-Units] Csabo80:
How to enter the developer menu on K4811? I know the code is 345543, but I don't know how to enter.
[Android Head-Units] Csabo80:
K4811_NWD

You can see it on the download page.
[Android Head-Units] m00n61:
Same way you enter on any android phone
[Android Head-Units] Csabo80:
Thank you.
[Android Head-Units] Olesya13:
Hi. Maybe you should go to the official website of the manufacturer and look there for the necessary information?
[Android Head-Units] Csabo80:
I had to replace the canbus box in my head unit because it wasn't working properly. The previous software is also used for the new canbus box. In such a case, should the first canbus software be deleted? If so, how and where can I find it? The two canbus boxes are not from the same manufacturer, so they are different.
[Android Head-Units] TTal:
is anyone having issues with WIFI performance?

When I set My Mobile Phone as Access Point (AP-for sharing internet connection) the connection is very very slow... this case prevent Waze, Spotify etc to connect.

i have tried to connect to my WiFi Home connection and same issue.

thanks
[Android Head-Units] BartmanEH:
Been there, done that. Most of these are AliExpress items with little to no support from the "reseller".
[Android Head-Units] TTal:
someone try the K4811_NWD_S217206-20230223?

the ZIP package is different from the one the seller send me.

or anyone have link for the latest version (K4811_NWD) ?
[Android Head-Units] tonysloth:
So I just got the k4811 and opened it up because I usually hardware mod these Chinese android headunits. They are advertised with a tda7851 or tda7850 amp that's 75w x 4 2ohm or 50w x 4 4ohm. Mine actually came with a tcb503hq which is one of the newest car audio amps in the 25 pin package. The tda7850 only does those maximum wattage ratings with 19v but cars give 14.4v so they actually only give around 30w 4ohm and the units come with a 6600uf capacitor when the tda7850/7851 needs a 10000uf 25v capacitor a well. The tcb503hq gives basically full 50w x4 4ohm with 14.4v, it doesn't have to have the 10000uf capacitor and it has noise suppression built in to prevent the horrible hum or whining you here when using an amp with these. So I'd suggest checking what amp is in your unit and upgrading it to the tcb503hq for $5 if yours has anything else.
[Android Head-Units] bboypowerhoue3k:
Curious since you have the unit open can you check the antenna connections?, some of the videos I watched show that these units antennas are not solder correctly to the chip, my unit suffers from poor antenna reception even with the supplied antennas attached, my hotspot box can be right next to the unit and not receive 5 WiFi bars, and the 4g antenna forget about that, unless I’m in the city literally in the vicinity of a cell tower. I won’t get any connection from T-Mobile. I’m not good with disassembling electronics. Otherwise I would attempt to disassemble it myself, I wouldn’t even know where to start.
[Android Head-Units] wezyr07:
can i have a link to this update please?
[Android Head-Units] mimmoiaco:
Hi, i have a Ruancheng A8 with Toppal Voice. Is there a method to uninstall Toppal and set Google Voice like assistant? I have also a button on my steering wheel that actually activate Toppal voice
[Android Head-Units] tiagoemerick:
Same situation here. Need to go back to K4811_NWD_S217206.20240305.

I've searched for this version entire Internet. Does anyone have it?
[Android Head-Units] Daniel1811:
​

k4811_THDZ firmware update

I can't update apps
[Android Head-Units] Walgirr:
Hi i have issue with temperature icon on my radio

how can i turn it off?

I got vw eos 2008, but i cant find it on CAN car selection :(
[Android Head-Units] pssicho:
I have this problem with the 360 cameras. I don't have an image, it looks like in the attached photos. Can anyone help me? :((

Build number PlatformVER:K48-2024/01/04[ 3:31:56]-v0.01

About Car Devices : K4811

Thank you!
[Android Head-Units] marchnz:
What does seller say when contacted for support? What has been tried?
[Android Head-Units] pssicho:
"Resolution is not set correctly" and send me this over and over again That`s all
[Android Head-Units] elSiro:
In the 360 app settings, select 720 HD
[Android Head-Units] nickholtus:
Hi all,

I have an NWD version in my Mini Cooper (r50, 2005).

Had a lot of issues in the beginning, but updates found in this thread solved almost all of it.

Now I have a question:

Has anyone tried using a universal Bluetooth steering control? My car doesn’t have it and the frame for my car covers the buttons on the unit. So I am looking for a Bluetooth steering wheel controller
[Android Head-Units] cristyler:
Hello everyone,

I have a question: on the standard UI theme,

is it possible to change another Map Provide

r

, other than Google Maps, can we put IGO or SYGIC or WAZE? Because normally we can put: Radio, Youtube and GoogleMaps...

But in another Launcher like CarWebGuru or FCC or CarLauncherPro or others... can we put SYGIC or WAZE or IGO, can be added to the front-desk-theme, not Google Maps ????????????

Thank's.