yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] talmazi:
Hello, I have a radio with 2000x1200 resolution and I want to update, will this work?

K4811_NWD_S217851.20230925.102225.H5D9.01D
[Android Head-Units] enzo60:
update with this: https://mega.nz/folder/dzMwHaCS#HIR96GLWAnWRwomubtR1mA
[Android Head-Units] talmazi:
The version I use here is more recent
[Android Head-Units] enzo60:
your version is: S21B104, my version is: S217206, so different
[Android Head-Units] daihatsu.charade:
Cheers, let us know how you go
[Android Head-Units] nikos_lancer:
good morning everyone, can someone tell me what does this do? is it a brain? because when I plugged it into the radio the car wouldn't start and stop, just like it wouldn't listen to the gas..
[Android Head-Units] daihatsu.charade:
The Chinese text reads

For: 2014 Outlander

2017-2019 Pajero v97
[Android Head-Units] nikos_lancer:
ok but my car is lancer and no working good,Do I leave it on or take it off completely?
[Android Head-Units] dhiller71:
Dear forum, I need your help. I have a K4811_NWD_S21B104.20230826.181721.. (factory installed on a new 2k android radio) and have following issue.. Attaching an AHD720 reverse camera works only good after a fresh reboot resp. reset; means it shows reverse picture and switches properly back to launcher view when leaving reverse gear. The weird thing now is, as soon as ignition is off and then on again, it immediately shows only the reverse camera picture (for forward gear, parking and - no surprise - also for reverse gear).

To be able to return to the android launcher, I have to reset the device; then it works okay until next ignition off. Has someone just any idea what could cause that issue?
[Android Head-Units] peecee55:
Just wondering if everyones reverse camera has chinese warning writing as well as english like mine.? Its K4811 NWD. 360 view. Is there a way of removing it? I have checked language settings to no avail.
[Android Head-Units] cesarguaro:
Not in my case, the rear camera on my unit doesnt have chinesse characters, i have a K4811_JYT
[Android Head-Units] dhiller71:
Could solve it by attaching power / ground directly to the reverse light instead of already existing oem camera cabling
[Android Head-Units] nikos_lancer:
Download this version but not install 🥹

Md5 no for this version 🤔
[Android Head-Units] nikos_lancer:
How can I turn these two off so that it doesn't turn them off every time the radio is turned on?
[Android Head-Units] nikos_lancer:
View attachment 6022398
[Android Head-Units] daihatsu.charade:
Did you plug any device in the USB cable (e.g. USB disk)? If yes try to remove it.
[Android Head-Units] nikos_lancer:
yes i have the music usb i will take it out and test it, the left arrow on the picture how do i turn it off? i think it's for the cameras but i don't have a camera
[Android Head-Units] Ohm Thanawat:
Please help. I want to know. Is there a new update for k4811_MCX?
[Android Head-Units] nikos_lancer:
How can I disable this feature?
[Android Head-Units] FeRn4nDOsb:
I just bought an Ruancheng A8 - 13.1", someone have the user manual or any PDF manuals of this model?

How about Rooting, any success?

What is the temperature and room temperature? They say it's not necessary but here during summer it can get around 45ºC external
[Android Head-Units] FeRn4nDOsb:
Your lancer doesn't need this canbus, you can remove it and just use normal wiring and for configuring steering wheel buttons just connect "key1" wire to the steering wheel signal and you're good to go
[Android Head-Units] FeRn4nDOsb:
Can I annoy you when I receive mine? I will open it and see what is inside, what is the best option today? 10,000uf 25v cap + TCB503HQ? does it affect software parameters? (Seems that mine will come with TDA7851).. what is the size of this capacitor? I'm planning to get a JCCON or do you suggest something? And what else can be upgraded in these units?
[Android Head-Units] KoTiX2:
Did anybody tried this yet?
[Android Head-Units] marchnz:
Not worth time or cost.
[Android Head-Units] m00n61:
Won't install, I guess the music app is a protected system app.
[Android Head-Units] KoTiX2:
Yes, it is but as I'm using the same signature of the original app it should install as an update of the app.

Thx for reporting it :)

I'll check it...
[Android Head-Units] m00n61:
Could also be because I tried to install it on a JYT variant, not NWD. Couldn't really figure the difference between these two, even update servers for JYT are NWD. Also, my unit is a 13 inch, 2000x1200, if that matters.
[Android Head-Units] KoTiX2:
If JYT radio app is a different package then I need the apk of this JYT version
[Android Head-Units] enzo60:
the warning text cannot be eliminated, but you have two guidelines, you can eliminate one from the factory settings and the other from the camera, normally there is a wire to cut
[Android Head-Units] FeRn4nDOsb:
Sorry, not worth it to you or for me? The thing is that I've already purchased the TCB503HQ so just wanted to have more information, if you have a thread regarding it then it would save your time giving me these details. Thanks.
[Android Head-Units] marchnz:
Replacing the internal power amp IC, is not worth it. The gains are insignificant, but I get the fun and enjoyment of doing it.
[Android Head-Units] FeRn4nDOsb:
Me too friend, I love to do this kind of tweak but don't understand a penny about head units / audio electronics, I'm learning now, it will be my second HU, and my first was a sp9853i_1h10_vmm..

I Already purchased a TCB503HQ, I have a soldering w/ hot air station, and acceptable soldering skills..

Anything that can make it better for sure I'll want to do, since it's a Chinese unit, I won't have a warranty or electronics repair store nearby and these units don't have much information available, so soldering is the easiest part for me now haha.. So I would be glad if you give us more knowledge about it.. I still need to look for a capacitor but there is a lot of options..
[Android Head-Units] arifpy:
I want to update the file of my Android unit K4811 please help. My device is crashed
[Android Head-Units] marchnz:
Nice one.

Just to he sure, what is the Amp IC being replaced and also, where was the TCB503HQ obtained from - there are loads of counterfeit devices.

A few pointers -

Toshiba recommend 3900uF for the supply reservoir cap.

Max output of 50W is at 15.2v. That voltage is not going to be achieved without a boost converter in a vehicle.

True output, RMS all day long, is 25w/chan @ 14.4v (on the high side of automotive supply.)

Honestly installing an external amp is a path to higher, achievable gains.
[Android Head-Units] FeRn4nDOsb:
Toshiba recommend 3900uF for the supply reservoir cap.

thanks, I will check what is there once I receive the HU.

Max output of 50W is at 15.2v. That voltage is not going to be achieved without a boost converter in a vehicle.

Got it, it could be a DC/DC 200-250W?

True output, RMS all day long, is 25w/chan @ 14.4v (on the high side of automotive supply.)

wow, so that's why radio is usually so weak compared to any small audio amplifier
[Android Head-Units] m00n61:
Here is the APK.
[Android Head-Units] drumsgospel:
I had the same problem, to solve it just format the pendrive... the error is due to it conflicting with the previous version.
[Android Head-Units] nikos_lancer:
I don't understand, do you want to say about the left arrow on the photos? if so, how can I fix it?

I fixed the other one with the chinese letters, cleaned the usb and everything is fine
[Android Head-Units] drumsgospel:
Sim, pode esta em configurações do Cambus!
[Android Head-Units] nikos_lancer:
Yes that's exactly what I was looking for, thank you for the video 🙏🏻
[Android Head-Units] drumsgospel:
Then come back and see if it worked!
[Android Head-Units] nikos_lancer:
I'll look at it in a moment and answer you
[Android Head-Units] nikos_lancer:
All done, close one button and it’s ok now, thanks again!
[Android Head-Units] almirb:
Hi guys!

I bought my first AHU last month.. and I'm struggling with lagging and high memory usage since then. The model is K4811_NWD_S217851.20230616.150411.H5D9.01D. Last weekend, I try to remove cache of all Android installed apps, then I noticed the Google Play Service was the bad guy there, eating a lot of RAM and causing a lot of issues in this device. Today I finally found this forum and thread.. reading since the first message, I was glad to see @bboypowerhoue3k confirmed the Google Play Services was causing this trouble.

Now, I only have one issue to fix.... the music is very loud compared with GPS instructions. I tried Google Maps, iGO NextGen and Waze (that I like the most). After trying all of the audio merging options, I had no luck in lowering the media volume and raising the GPS instructions. I would be very happy It would exists an "mixer config" the same way we could found on Android Phones.

I also tried some settings in factory options (with passw 16176699) and changing all volumes to minimum and navigation voice to max... but had no effect.

How can I do that in this AHU?

Thanks!
[Android Head-Units] peecee55:
Yes

Hi welcome i have found this forum very useful. Yes there are two ways to change volume. 1. Google maps has a setting when you click on your profile can make maps voice louder. I presume other apps do too. 2. In App - Car Settings - General - Navi Settings - scroll down, there is a spot to change. Also there is a july update that you could try for gliches. Connect to internet - Car Settings app System upgrade. It might download from there. Did you buy yours from an online company. They may be able to help. Good luck
[Android Head-Units] Barykelo:
Car Settings app System upgrade is for manual update. I have the My Car app to update from the internet. The latest update is from 28.9. .
[Android Head-Units] peecee55:
Do you have any issues with the latest update (sept) A couple of people on here said not to bother with it. One said it failed. I have contacted the company I bought head unit from this week and they stated July was the latest.
[Android Head-Units] Barykelo:
I have no problems with what the car radio downloaded. It's the NWD version again. The September version of the OH is bad.
[Android Head-Units] almirb:
Hi! I tried configuring Google Maps voice to “Louder” config, but that’s not enough. Waze doesn’t have this option.

About the Navi config:

I put the merging option on “1”. It almost mutes the music during the voice directions but for hearing them I need to keep the main volume too high.

Would be very nice if I could change the “media volume” (last bar on this screen). But It’s unchangeable (third picture below).

About the company: I bought this AHU here in Brazil by internet from a local reseller. Tried their support.. but they only ask for sending videos about the problem and It seems they know less than me about software config on this device.

Here is my current software version.
[Android Head-Units] Oldbiggy:
What's wrong with the September version of OH?
[Android Head-Units] settenke01:
Hi! I bought Ruancheng A8 4G+64G in august. It has K4811_OH version firmware. I installed above headunit in Suzuki Vitara (LY 2017). I've two issue with it. 1. Stored radio stations deleted after power off or restart AHU. 2. How to configure steering wheel button? I don't see any app or settings within Car settings and Factory settings. Do you recommend change the firmware to latest NWD? Will it fix these two problems?
[Android Head-Units] m00n61:
1. Cannot be solved, Hardware related issue. You can store the stations but they will be deleted at each reset.

2. You should have an app called SW Learning. At least that's what I have on my unit for configuring SW buttons.

If you want to change the firmware make sure you have a backup of your OH firmware and that the firmware you are installing is for the same display resolution.
[Android Head-Units] enzo60:
you can try the NWD version that I posted a few days ago. Others have upgraded from OH to NWD with no problems.
[Android Head-Units] settenke01:
Unfortunately I haven't found any SW learning apps within the applications. Is it possible the download the .apk?
[Android Head-Units] tarabakhariya:
I have similar model as mentioned in above conversation. It is sold by Hypersonic. It would be great if somebody suggest UI for this head unit. In my head unit it shows 5 UI but all are disappointing me, these are not attractive UIs.

Thanks
[Android Head-Units] Barykelo:
Does whitelisting work for anyone? I have Spotify, Sygic and Network radio set up and none of them come back on after turning the car stereo off and on.
[Android Head-Units] m00n61:
Whitelisted apps will only stay in memory and not be closed when losing focus.
[Android Head-Units] Nobelious:
So I purchased a Ruancheng 9" 4G/32G headunit with system info below. It is working well but I have an issue with Android Auto. Wired Android Auto works flawlessly but wireless Android Auto is very laggy and freezes the whole Zlink app. It doesn't help that Zlink automatically connects to my phone through bluetooth first before wired. Is there any possible fix through an update for this? My Zlink5 app version is 5.4.6. Thanks
[Android Head-Units] drumsgospel:
On the iPhone it is working perfectly in this update k4811 OH the Zlink both wired and wireless.... I have observed that Android Auto is facing wireless difficulties...
[Android Head-Units] settenke01:
Thanks for your help. I have already found the SW learning. The problem was after installing the Agama launcher I haven't found within the apps. After I realized if I diasble Agama launcher and use the Original launcher the SW learning is appear among apps. I will try it when insttall HU my Vitara (LY). So I will wait for installing NWD firmware.
[Android Head-Units] Nobelious:
I see, is there a way to force Zlink to connect through the wired connection instead of searching for Bluetooth? What happens is it will still search and connect wirelessly to my phone even when it's plugged in and then I have to close the app and try again until it connects wired.
[Android Head-Units] Nobelious:
Nevermind I've figured out that you can disable wireless Android Auto through the developer settings in the Android Auto app on my phone. However I still want to figure out if there's a way to fix the wireless Android Auto to make it usable and not laggy.

Also has anyone been able to connect an OBDII dongle to their K4811 headunit? I've got torque installed on the headunit but have no idea how to connect my ELM327 dongle
[Android Head-Units] marcio.camurati:
Hi, I'm experiencing an issue with my unit, K4811, which I've installed in my 2014 Hyundai Elantra.

When I start the car engine, the multimedia remains off. Occasionally, it powers on, but only 15 to 20 minutes after the car has been turned on.

I attempted to upgrade the software to the latest version: K4811_NWD_S21B104-20230928, but it didn't resolve the issue.

Has anyone encountered a similar problem? Any suggestions on how to address this?
[Android Head-Units] peecee55:
Hi there. I have never really worried about Android Auto as I have downloaded all my apps onto head unit including Google maps & Spotify. I downloaded all my play lists as well. I hotspot internet from phone and also connect Bluetooth without tethering.

In relation to ELM327 I had trouble connecting it to bluetooth also. Gave up and bought an Android Autohil AX4 ELM327. It is a lot smaller and has an on/off button and will connect via Bluetooth or wifi. Works well with Torque Pro app.
[Android Head-Units] axelrend:
Main board difect , after a month of problems and updates sent by the seller, my radio turned off by itself and turned on when it wanted, in the end the audio also disappeared, I had no audio, neither on the video, nor in the radio and not it didn't even change the radio stations, nor mp3 music nor bluetooth: no mute audio, the seller opted for a new motherboard which will arrive in a few days
[Android Head-Units] m00n61:
Only ELM327 (not cheap Chinese clones) and has to be connected via the Toolbox app, not phone app. Works very well with both Torque Pro and SZ Viewer (Suzuki-specific)
[Android Head-Units] maduino:
Hi, how to make full backup for this firmware so I can install it in the future when my HU crash?
[Android Head-Units] m00n61:
Your best option is to save the next OTA update file. In the "My Car" app, Upgrades tab, you can instruct the unit to save the update file to a USB stick.
[Android Head-Units] mimmoiaco:
I tried it, but it doesn't install. I have a k4811 nwd updated to the September OH version.
[Android Head-Units] KoTiX2:
Ok. Thx for reporting it.

I'll have to buy a 4811 unit for testing then...

Is possible to activate USB debugging on these units?
[Android Head-Units] m00n61:
Yes.
[Android Head-Units] enzo60:
I believe that the software's default apps cannot be replaced, but they can be added
[Android Head-Units] nikos_lancer:
hello guys, i can't understand why my radio is stuck! it did it from the first day, but it doesn't always do it, tomorrow it might play fine. today in the morning it played fine, now in the afternoon it doesn't play at all! is there a setting i need to change? does it do that to you?

I've only passed him the agama application and nothing else. If someone can help me
[Android Head-Units] KoTiX2:
The system apps in this model are signed with standard Google signature so it's possible to create apps with same package name as the originals but with a higher version number so that they will act as an update of the original apps.

This has been already done on FYT units and surely it's possible on these models too.

Right now I don't know what is wrong with my version of MusicProxy, I will need a unit and debug what is going on...
[Android Head-Units] Nobelious:
So I'm getting a new issue with my unit. When I start my car up, the speakers will make a pop sound while the headunit starts up. The only setting I think could be affecting this is I changed the headunit from going to sleep when the car turns off to turning off completely with the car. Is there a solution to this or do I need to set it back to going to sleep when I turn off the car?
[Android Head-Units] nikos_lancer:
i can't understand why it does this to me, i press the srt key but it still does the same thing, the worst choice i've ever made in radio
[Android Head-Units] enzo60:
because it is downloading the firmware from the OTA, wait for the download to finish
[Android Head-Units] enzo60:
Do not try AGAMA on the K4811 because it creates problems for applications, especially the system radio, verified by me
[Android Head-Units] nikos_lancer:
I'll try it without agama, but I still think it will do the same because it did it to me at the beginning when I bought the radio, which was without apps! I will come back to let you know
[Android Head-Units] nikos_lancer:
it downloads normally but does not pass it, it says MD5 is missing. I'll just wait for someone in here to upload it and I'll pass it on.
[Android Head-Units] m00n61:
Go to MyCar settings, change the download destination to the USB stick. When download has finished move the file from /upgrade to the stick root and rename it update.zip. Then you can use the manual update in System settings.
[Android Head-Units] nikos_lancer:
Well I'll try it and let you know if it passes thanks!
[Android Head-Units] nikos_lancer:
I think that's what you mean to do
[Android Head-Units] m00n61:
Yes
[Android Head-Units] nikos_lancer:
I can't do anything anymore!

I can't hear anything on the screen, it has a very long slow response, is there any way to reset it other than the rst button? Or take out the battery pole to reset it?
[Android Head-Units] Oldbiggy:
It did the same thing to me, it proceeded by setting the region back to English.
[Android Head-Units] Nobelious:
So after playing around with it for a bit, I was able to get my ELM327 to connect. The issue I had was in the toolbox app, the ELM327 dongle was showing up but wouldn't connect. Turns out that the password has to be 1234 for it to connect in my case so that's something one could try. But the main issue that was preventing the connection was that the dongle was memorized on my Android phone. Since it was in the BT memory, it was trying to connect to my phone instead of the headunit. So I removed the dongle from my phone and retried the pairing from the toolbox app and it finally worked. Torque Pro is working perfectly with it so I hope this helps anyone else who may have had a similar issue.
[Android Head-Units] Nobelious:
Also for this issue, the speaker popping occurs when I go to start the car because the headunit is booting twice. Once when the key is in ACC and then again when I start the car. This is because I had the sleep setting off so when the key is removed from the ignition, the headunit fully shuts down. But because of this, the headunit is shut down and restarted on cold boot which I guess causes the speaker popping sound.

I've changed the sleep setting so that the headunit goes to sleep with the key out and shuts down after two hours. With this setting, the headunit isn't shutting off right on cold boot when I start the car so it has gotten rid of that popping sound. If anyone has a solution to the popping noise while keeping the headunit shutting down setting with the key out, please let me know. Otherwise I hope this helps others who had a similar issue as well
[Android Head-Units] enzo60:
I also set it to turn off after 2 hours when the key is removed, I think it's a good system, so that when you restart the car after even an hour, the system restarts in 2 seconds
[Android Head-Units] nikos_lancer:
hi guys how can i enable these buttons?
[Android Head-Units] Barykelo:
Does this button work for you?
[Android Head-Units] FeRn4nDOsb:
@marchnz hey friend, see what came in my HU:
[Android Head-Units] FeRn4nDOsb:
Try an app called "Bluetooth Pair" on the playstore, I didn't try yet but seems that it can pair the OBD2 device, also ensure your Bluetooth pairing password is 1234 !

Edit: tested !! It definitely works !!! You can pair Bluetooth devices using this app (Bluetooth Pair, at PlayStore).
[Android Head-Units] FeRn4nDOsb:
Check and confirm the ACC wiring signal, not only 12v+ make it turn on, ACC+ is also needed, maybe some issues here, another thing is trying to change the sleep time and low battery mode, I don't have the step-by-step right now but I can check tomorrow and get the full steps
[Android Head-Units] FeRn4nDOsb:
Hello, I read some of your old messages in this topic and you mentioned an App controlled FAN, is that right? Do you have this APK? My HU is a 4811_NWD (UIS8581) but it is 13.1 1920x1200 screen and when I opened it, I saw a connector called Fan and something with 4pin (could be PWM output) and I'd like to make it to work, the vendor didn't mention that a fan was needed but here in Brazil is kind of needed..
[Android Head-Units] m00n61:
It's posted in this thread.

More info on newer android head units SC7862 & K4811

A couple of years ago I bought the full version of Malaysk's firmware for a PX30/RK3326 Android 9. works great. I have new head units now, the Phoenix SC7862 Android 10 and a Ezonetronics K4811 Android 11 I searched the forums for these but...

xdaforums.com
[Android Head-Units] Barykelo:
Firmware K4811_NWD_20230928

https://drive.google.com/file/d/13jjtNLMVV8yLrV9YT-6sNy3eiGBizVzQ/view?usp=drive_link
[Android Head-Units] peecee55:
Will this work on all K4811 NWD units?
[Android Head-Units] axelrend:
NO . do not work this button
[Android Head-Units] axelrend:
Guarda il video
[Android Head-Units] axelrend:
you must have the 1024x600 or 1280 x720 for 9 and 10 inch bmp or jpg file, put it in a folder with the name: new_boot_logo on the pen drive (udisk) and copy it to the radio memory. go to the secret menu 16176699 boot logo and find your image , check video
[Android Head-Units] axelrend:
Sure
[Android Head-Units] enzo60:
why are the other firmwares 3.9GB and this one is only 1.63GB ?
[Android Head-Units] peecee55:
Last one I got was K4811_NWD_S217206-20230626. That was 1.62gb