yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] ConorStanley:
Wow. I just read all 33 pages of this thread because the title is "More information on newer Android Head units SC7862 & K4811" because I bought a Phoenix Automotive SC7862 for my 2012 Ram 1500 and am having a problem with the air conditioning control module keeping my truck's AC clutch on for more than three seconds. I've obviously gone to the wrong place because this is a hodge-podge of posts from members who forget to translate their messages to English per the sites rules, ask for Lithuanian language translations repeatedly when no one obviously knows if they exist instead of contacting the manufacturer or support from the reseller, and have issues with being really needy for the latest firmware whether it changes anything for them or not.

The next time I'm looking for some information, I'll arbitrarilly go to a thread and start firing off questions that have already been answered dozens of times witbout reading any of the posts in that thread before asking and I'll make sure I ask in sanscrit or some ancient language without translating it per the forms rules.

Does anyone here know anything about the Phoenix Automotive SC7862 12.1 inch Tesla style Android head unit with automatic AC controls and integrating it into a 2012 Ram 1500 SLT that came with manual AC controls and that is able to have the various can bus systems adjusted with AlfaOBD so I can get the engine AC clutch to stay engaged for more than 3 seconds without cycling the AC power for each 3 second puff of cool air?
[Android Head-Units] enzo60:
here we discuss only for the K4811, see if there is other discussion for the SC7862 in this site
[Android Head-Units] fenyovari:
Car settings -> Parking switch off !
[Android Head-Units] Hamman82:
I don't know why but it didn't work for me. Maybe something else needs to be done?
[Android Head-Units] Hamman82:
Is there any way to display the temperature? Because the factory radio had this function and the cables were plug & play.
[Android Head-Units] fenyovari:
345543
[Android Head-Units] jb_68:
I just updated my unit OS and zlink and a lot of issues have been fixed.

Left buttons doesn't work anymore. Any idea ?
[Android Head-Units] jb_68:
Did you find any fix for this?

My buttons stopped working after I updated the system. In car settings there is a "panel" setting but have no clue what should I have there.
[Android Head-Units] Hamman82:
The supplier replied that in the version I bought: 2K 8G 256G these buttons are not there.
[Android Head-Units] jb_68:
Mine worked before. I guess its depend of the panel.
[Android Head-Units] jb_68:
Actually I figured out, You need to go in Factory settings -> Touch Study -> Study and select button from menu and then confirm it with the button on left.

The return button still doesn't work but the rest are fine. I guess I will need the next update.
[Android Head-Units] peecee55:
Should change the name of heading to "More info on the newer android head unit K4811"
[Android Head-Units] fenyovari:
Unfortunately, the sound of the navigation is much quieter than the sound of the radio or music player. I mainly use Waze. Which setting can I use to make the sound of the navigation louder? I reduced the mixing ratio to 2, but the big difference is still quite disturbing.
[Android Head-Units] jb_68:
You can try to go in Car Settings -> Navigation select waze as the navigation App and then slide the "Media" volume to 2 ( this works for me with Sygic ) . It is counterintuitive.
[Android Head-Units] fenyovari:
Thanks for the help! It is installed as you described. Unfortunately, since the sound of the navigation is much quieter than the music, it can hardly be heard if the music is at a normal, pleasant volume, even if the system turns it down.
[Android Head-Units] fenyovari:
You would need some kind of application that can be used to set the sound of the applications independently of each other. It was included in my previous device. You didn't have to install anything. It was a fairly simple, cheap device.
[Android Head-Units] peecee55:
In google maps you can also go to navigation settings and change volume to louder etc One would think Waze would have a similar setting. Maybe if you google Waze volume control it might offer suggestions. When I first used head unit i had similar issues to you so googled and found answers. I am happy with mine now.

Further to above try https://www.wikihow.com/Change-the-Volume-in-Waze
[Android Head-Units] jb_68:
Any Idea how I can make the split screen to survive a car restart?

If I restart the car only the audio player is on an no split screen.
[Android Head-Units] fenyovari:
Thanks for the reply! I found a few descriptions on the Internet about volume problems. According to one variation, if Waze is running and its voice is speaking, you have to press the volume buttons up. It doesn't work on this device. It worked with my previous radio. Another solution is to turn up the volume during a phone call. During a call, the phone really handles the volume separately from the main volume. The phone can be turned up really loud as long as the main volume remains normal, but this has no effect on Waze unfortunately. This is how far I've come, I'm still trying to find a solution!
[Android Head-Units] wezyr07:
button illumination
[Android Head-Units] enzo60:
I solved it with the volume of the navigator, lowering the adjustment level of the various frequencies on the audio equalizer. in this way I turn up the volume to listen to music but also the volume of the navigator
[Android Head-Units] fenyovari:
Thanks! I'll give it a try!
[Android Head-Units] fenyovari:
Looks like this setup worked! Thanks!
[Android Head-Units] tebukan:
Hello friends . How do I enter recovery mode on the K4811 unit?
[Android Head-Units] tebukan:
Merhaba yeni versiyon Hello, can you send me the new version ? Thank you in advance
[Android Head-Units] jmvb:
Hello guys, K4811 NWD 4g-64gb

The backup camera works fine after a couple of settings, but..

The screen remain black for a few of seconds after the reverse gear is take away (then get the "no video" message, and back to normally)

Anyone know how to solve it?
[Android Head-Units] peecee55:
I think thats how it is. Mine does the same.
[Android Head-Units] fenyovari:
Yesterday, I had time to test the setting with the volume while driving, and unfortunately, adjusting the volume control did not improve the volume of the navigation. I lowered the levels with the volume control, but the volume of the navigation also decreased. I don't know what the solution might be, but I'm starting to accept that this is true and cannot be fixed. It annoys me a bit, because I bought a new device so that I can use the navigation more easily. The old device only had 1GB of RAM and it worked very slowly, but the volume of the navigation could be easily adjusted separately, even though Android 6 was running on that device disguised as 9. However, if you have any ideas on how I can set the volume of the navigation (Waze) to a higher level, write it down! Thanks!
[Android Head-Units] peecee55:
Have you thought it may not be a head unit issue but a waze issue. I have made all adjustments to google maps and happy with it. I have waze but havent really bothered with it.
[Android Head-Units] Denchik977:
Mod edit - translated by https://translate.google.com/. Oswald Boelcke, Senior Moderator.

Did you solve the sound problem?

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

Решил проблему со звуком?
[Android Head-Units] Oswald Boelcke:
Hello and good morning, @Denchik977 Welcome to XDA! I hope you'll always get the support you require and have enjoyable times on our platform.

However, as a one-time courtesy I've translated your above post. With reference to rule no. 4 of the XDA Forum Rules, please post in English or add at least an English translation to your Russian posts.

Spoiler content hidden.

Thanks for your cooperation.

Regards

Oswald Boelcke

Senior Moderator
[Android Head-Units] enzo60:
you replied that you solved it, however you have to lower the equalizer of the audio bands to -1 or -2, so to listen to music you have to raise the audio level and the navigator level will automatically rise. Check that the navigator volume is at maximum in both the navigator and vehicle settings of the K4811. I solved it like this. I have 2 navigators running, Tom Tom IGO and Google Maps and it works perfectly. Change your navigator too.
[Android Head-Units] gabontz:
Hello,

Has anyone managed to root these devices, or get them hooked up to a PC with ADB?
[Android Head-Units] hectus:
Hi Folks, I have a K4811_HDKJ and im struggling a bit with i can not get any program to autolaunch when i turn ignotion on, like for example DAB-Z, also the default volume i have set never starts at default volume. Is there something i can do that i havent figured out? Is there a sleep setting hidden somewhere on these units? mine seem to come right back on even after car been off for a few days.

Edit: i think the programs wont autolaunch because the unit is actually not booting, just suspended? still same question, is there a way i can get for example dab-z to launch everytime i turn on?

After i did a factory reset, i lost the option to change the panel button colors, does anyone have this file to reinstall or a solution for this?

Also how can i tell if theres an update aviable for my version?

Another Edit: i can answer some of my own question incase someone else run into the same problems. In advance factory settings, pin 16176699 , theres a setting called " three lamps", this is the keylight function and will bring back the option to change colors on ur physical panel buttons.

Also sleep is under these advanced settings, i just didnt see it at first.

Under sleep, one of the settings is something like, turn acc off after sleep, does anyone know how long it sleeps for if u use this setting? i have set mine to never sleep now and everything starts at boot like its supposed to, a bit annoying to have to wait thru the boot up when ur ready to reverse and waiting for them cam, but at least now the programs is starting.

Anyone have a better solution for this? like triggering Dab-z when screen wakes up from sleep or something?
[Android Head-Units] gabontz:
Is this the 360 camera by any chance?

Can you please send a link?

TIA
[Android Head-Units] fenyovari:
Hello! I have read before about the problem where the radio forgets the set channels after restarting.

It's worked that way for me so far.

I installed an antenna amplifier today, and since then I don't forget the set channels after restarting!

With this amplifier, I can receive many more radio stations in good quality.
[Android Head-Units] fenyovari:
I was also on a long road yesterday and I needed the navigation. Waze is better than google maps because it warns about speed cameras. That's why I use this instead.

Unfortunately, I had to turn off the music because I couldn't hear the sound of the navigation well, the music is much louder. If you could possibly take a photo of what you set on the device to make it louder, please copy it here!

Thanks!
[Android Head-Units] hectus:
I dont know if ur unit is identical to mine, but if i go to advanced factory settings, pin 16176699 on mine, theres a setting called gain where i can adjust the gain/volume on for example the Navigation induvidually to the other apps. Not sure how it will work with waze but if its the default navigation app, its worth giving it a try.
[Android Head-Units] jb_68:
This is a software issue. In the orginal version it didn't forget the channels. I don't use much the radio but at the time I memorized about 5 channels. After update I tried to memorize the 6th and no way. However the other 5 are still there so it must be some software permissions. So I have 5 channels and the rest are 87.5 or something like that LOL.
[Android Head-Units] peecee55:
You must be lucky. Lol Every time I save a change I lose the lot. All at 87.5. Its annoying.
[Android Head-Units] peecee55:
Hi just wondering how you change the panel button colours. I have been into factory settings and ticked the three lamps option. Not sure how to change the colours.
[Android Head-Units] fenyovari:
Thanks for the information! I found the GAIN menu item. I lowered all volume to level 7, leaving only navigation at 10. I haven't had time to test it yet, but I hope it works!
[Android Head-Units] tebukan:
AFriends, have a good day . After updating my device, the fan app disappeared. Can you share fan apk for nwd version? I think the jyt apk version is nwd as well Nonoperating. I save with fan marked from the settings, the device turns on again, but the application does not come. 2. How can I use Google assistant?
[Android Head-Units] hectus:
in my unit after u ticked the three lamps, save settings, let it restart, then go back to car settings, instead of going to system/factory setting, scroll down on the first menu, in mine theres now a option called keylight where u can change the colors on the panel buttons.
[Android Head-Units] jb_68:
Did that, didn't work for me on previews version. Will try again as well as lowering the equalizer.
[Android Head-Units] tech300:
Lower all the gain menu values to 0 and set the Navi value to 10 and you will see that it works, it worked for me, although Waze continues to have a lower volume compared to Google Maps but it manages hear perfectly
[Android Head-Units] Egooo:
Hello, can anyone share the radio app with me? , the black and white ones from the earlier version of the NWD software
[Android Head-Units] foxitu:
Hello everyone, I apologize for any errors in English as I am using a translator.

Well, I bought a multimedia for my car, lelong brand. I would like to update it, if anyone can help me I will be very grateful.
[Android Head-Units] tebukan:
PasPasswords, I've edited it for you
[Android Head-Units] enzo60:
sorry friend, you've been saying you've solved it for a month, but I see you haven't even figured out where to take action. THE K4811 has an audio equalizer with the possibility of adjusting the various audio frequencies ranging from 30Hz to 20Kz, these are adjusted to -2 or -3, you will see that to listen to music you have to increase the volume, so you can also listen to the navigator better
[Android Head-Units] enzo60:
you almost have one last update, why do you want to update? If everything works, leave this version of the software
[Android Head-Units] SebaDajana:
Hi there! Does anyone have problem with DSP app, because fine settings doesn't work. When i'm trying to change timing for delay of each individual speaker, it doesn't do anything in new update. So can someone send previus or working version of DSP.apk or teach me how to update head unit to an older version? The current faulty version is K4811_OH_S217101-20231213.

In attachmens bellow are the pictures of installing even newer firmware they have sent me, but even less succes and i really want this head unit to work like it has before with old firmware K4811_NWD-S217206-20231124
[Android Head-Units] enzo60:
localos , what changes with these radio Apk? In my original RDS apk I only partially read the information of the songs transmitted, do these apks read the RDS information in full?
[Android Head-Units] tebukan:
eDownload the 3.7 GB version on page 6, put it on the computer, extract it from the zip on the computer, upload the update file to a flash memory with the computer. Then insert the flash memory into the usb end from the 4 pin USB input and turn on the unit. It will automatically start installing. Then you install the version you want again.
[Android Head-Units] foxitu:
Because basically it's Android 10, I wanted something with Android 11 if possible
[Android Head-Units] dalgask:
Disable mute in reverse.

I have had months of pain dealing with Ruancheng on my K4811 and essentially given up with them. I have the common loosing radio stations, loosing volume default setting (always goes back to 10) with unit ‘reset’. I get no functionality from the Volvo c70 Canbus decoder. It actually had a flaw by displaying reverse screen above 68km/hr and return to Home Screen below 40km/hr. I had to cut the reverse wire from the decoder to fix that problem.

It’s frustrating that the unit has potential to be great, but the user functionality very poor. I have an old android 10 in my xc90 and it just does every the way you’d expect.

I've given up getting a lot of the functionality I hoped for, but I want to ask if anyone knows how to set the unit so that it does not mute sound when in reverse? There is a button for that in the menu, but nothing changes whether it is on or off.

Is the some other setting to enable this button functionality?

Thanks.
[Android Head-Units] thugscorpion:
Where did you find the rooted ZIP?

I searched but cannot find it anywhere.
[Android Head-Units] SebaDajana:
Simmilar problem, but only while using Z-Link. On page 6 is the 3,6gb previus version of firmware and it solves that issue. But keep in mind that you will get more basic DSP withou Lousnes feature, HPF and simmilar and settings theme will be basic black,, but other things will work flawless and mute function, reverse camera, speed is great and please use vivid launcher from playstore to keep it look premium.
[Android Head-Units] SebaDajana:
Nice it worked, but still need to find firmware with fully functional Ruancheng DSP apk.
[Android Head-Units] tebukan:
Şu anda hangi sürüm yüklü?

Mod Edit: English Translation Below

Which version is currently installed?
[Android Head-Units] SebaDajana:
Right now i'm using, K4811_NWD_S212851-20220928... but yesterday i got from the Ruancheng store K4811_NWD_S217206-20231124 and still has half working DSP Equlizer apk.
[Android Head-Units] cr0wn777:
Как решили? у меня тоже самое

Mod Edit: English Translation Below

How did you decide? I have the same
[Android Head-Units] cr0wn777:
Подскажите, а как установить логотип и динамическую загрузку в версию k4811_LG_S217653.20240104 тоже через new_boot_logo ? у меня не получается... может это из-за расширение файлов? они у меня в формате JPG

Mod Edit: English Translation Below

Tell me, how can I install the logo and dynamic loading in version k4811_LG_S217653.20240104 also via new_boot_logo? I can't do it... maybe it's because of the file extension? I have them in JPG format
[Android Head-Units] shadowstep:
@cr0wn777

Spoiler content hidden.

Spoiler content hidden.
[Android Head-Units] thugscorpion:
I'm having several problems with my head unit and my knownledge is insufficiënt.

But I'm hoping I could learn something to possibly fix it.

- No Document Provider installed? It seems that the file manager installed does not provide SAF and COM.ANDROID.DOCUMENTSUI seems to be missing.

This results in the problem that I cannot open files from installed apps.

Like Torque Pro, importing a custom PID CSV will not work and results in the error documentsui not found.

Also Magisk is unable to open boot.img and the option "Let's go" stays greyed out.

I tried reïnstalling the latest software provided by Ruancheng (1.6GB update).

I understood I cannot install the FYT software on my generic 8581 device.

Is there any other way to "easily" create a legit android OS without fake memory using the original Firmware and updates?
[Android Head-Units] thugscorpion:
Is it possible you share the newer firmware version here or send it in a private message?
[Android Head-Units] peecee55:
I currently have a Raise canbus in my 2018 Nissan Navara NP300 STX. Have seen online that it should have a Simple Soft Canbus. Just wondering if it would cause any issues if I change the canbus over. Only real reason is dash clock doesnt work since K4811 NWD was installed. Thought maybe it might make a difference.
[Android Head-Units] enzo60:
To make the dashboard clock work, from the settings go to date and time and set time with GPS. If it still doesn't work well, then you have to change the type of car but always Nissan
[Android Head-Units] tebukan:
AFriends, my device is 6gb ram with 128gb memory. But today, I read somewhere that the uis8581a processor in our device is 4gb of ram, .6gb is a scam. I'm looking at Aida64, it still looks like 6 gb of ram. What is the clear information on this subject?
[Android Head-Units] danielnf86:
Did anyone solved the problem associated to read/write USB flashdrives using third-party software? Also, with my k4811 unit (4gb/64gb) NWD 20230711 version, I experience problems associated to apps being able to read images and data from internal storage. For example, I tried to use Square Home as laucher. I'm able to set as default launcher, but it seems the app cant have acess to something internal-sorage-related. When I try to set an image as icon background, the app asks the location of the image, I click in "explore", "internal" or something like that and the app returns to home screen withou seeing images from internal storage.

I suspect that there is something to do with "DocumentsUI" app/permissions. I installed a version from here:

https://www.reddit.com/r/AndroidQuestions/comments/t72qac

Using the standard file app I can install it but the acess to either USB or internal storage remains impossible. The problem is that I can't use USB storage to store videos or music that opther apps could use.
[Android Head-Units] thugscorpion:
Here's the correct link: https://drive.google.com/drive/folders/103fqNVWU4ZY3KHJx3DF3mSrPSRGZWeXo?usp=sharing
[Android Head-Units] tebukan:
What's the point of rooting this device ? I can turn the things you mentioned off and on from the factory settings anyway . A nice launcher is fine with fcc or agama. A streamlined system update is enough. Of course, tastes and colors are indisputable 😁:)
[Android Head-Units] pencilgon:
Yurii Zotsenko in 2DIN

A chat related to Android head units. Welcome!	"Z" нацистам вход запрещен !!!

t.me
[Android Head-Units] thugscorpion:
That's the problem, I opened so many forum topics with so many pages and I've read them all.

Either from here or 4pda in one of the many topics. I downloaded everything that mentioned the K4811 or UIS8581 and tried it later on my HU.

Most failed, like updates.zip but this image worked.

That is also why I cannot credit the poster/creator and reference to the source and explocitly say I cannot be credited for the work.

And that is also why I uploaded it to Gdrive so you don't have to search for it.

I don't know how to unpack, sign and repack the update.zip files let alone know how to do this with the 3.7GB install.

All I know is thst after 15 days and many many hours I know Android is badly implemented and there is very little known or experimented with this model.
[Android Head-Units] thugscorpion:
I have car launcher pro and every reboot (not sleep/hibernate) all the added shortcuts to apps are gone..

Something is wrong with android and I hope to fix it some day with the assistance of root.

Also I wanted to delete undeletable apps from the seller, like (spyware?) TOPPAL service.
[Android Head-Units] tebukan:
Try Agama car launcher or fcc car launcher. Much more successful launchers. You can also close apps you don't want to use like Toppal and 360 from factory settings. I recommend you to reinstall the 3.7 gb software by doing a factory reset. Then install the nwd software. 11th month software is very good
[Android Head-Units] thugscorpion:
The unit came with xx-11-2023 software and there I had the same problems. Seller send me a xx-12-2023 update.zip and this fixed only import of files, not export.

So I am going to try another way of rooting with the latest software but for now I'm going to play a little and see if I can discover how the specs are faked and if I could reinstall or fix Android installation.

Of all the launchers I tried I liked Car Launcher Pro the best so I purchased it and therefor I'd like to be able to use it.

I know you can disable Toppal Voice via factory settings but Service remains active.

I also wanted to limit the amount of apps of unknown origin and in the background due to memory usage.

CarStereo keeps coming back and constanly uses resources.

Plus some extra freedom in modifying Android is never bad. I like to play with the HU more then just install launcher and spotify :)