yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units General] tospace2006:
Turns out the headphone jack was not seated properly from when I fixed my phone recently.

Fixed that and can confirm it's working now with the AV in app

Dumb mistake... hahaha killed 2 birds with 1 stone I guess

I still get the error sign as there's no video input but the audio works
[MTCB Android Head Units General] jbleasdale:
Clearly it varies by car. My VW specific one fitted perfectly into the existing slot, no extra parts required.
[MTCB Android Head Units General] jbleasdale:
Latest update on Android 5.1 availability from Joying - coming "about late December."
[MTCB Android Head Units General] tospace2006:
I thought they confirmed they weren't releasing lollipop
[MTCB Android Head Units General] jbleasdale:
At one point it looked as though their 5.1 support would be for new devices only but all recent mentions have suggested an upgrade path for existing users. This is great news.
[MTCB Android Head Units General] mrr19121970:
The last update I saw said "martch" which I took to be March 2016
[MTCB Android Head Units General] HenrikH29:
The Joying Ford Mondeo unit fits perfectly both the front panel, carrier frame and harness.
[MTCB Android Head Units General] tmiller101:
Delete a few apps until you have freed enough room to install a cache clearing app, like iorbit's AMC. You will find 500 to 600 Mb are wasted storing junk.

Every time you get that notice run the program, or you can install Malaysk ROM he increased the internal partition eliminating this problem.
[MTCB Android Head Units General] tsitalon1:
Long story, bought two of these, one with and without knob, love these units but both if them work to stream BT music, but will not pass call audio.

Tried 4 different phones.

Started this post for help:

http://xdaforums.com/android-auto/m...ing-4-4-rk3188-bt-call-audio-missing-t3261642

Looking for help :)
[MTCB Android Head Units General] JoeWilcox:
tmiller101 - did you install a custom ROM? Often you have to do a factory reset to see all of your memory.

I have 2 remaining problems that I can't seem to find good work around's for. First I can't seem to figure out how to stop Radio or Blue tooth audio when I enter PowerAmp. It's really annoying. second even with the announced hack/tweak here I sometimes lose the ability to control my audio with the knob. Anyone have any ideas?

And of course, I'd love more than 2 hours of standbye time.

Down to just the issue with volume.
[MTCB Android Head Units General] mrr19121970:
Anyone done a custom mod adding a lipo battery to keep the unit in power even when ignition off ??
[MTCB Android Head Units General] Kompster:
Can confirm this as a direct response from Joying a few days ago.

"Thank you for your feedback.

Thank you for your support JOYING.

We are be hard to developing quality head units and offer best after-sale service to JOYING customers.

The Android 5.1 lollipop will release in next year March.

We can offer it to JOYING customers.

Any more questions please feel free to let me know.

Have a nice day.

Best regards,

Rambo"
[MTCB Android Head Units General] pounce:
Your car battery is large battery that is charged by your car. You could just change the wiring.
[MTCB Android Head Units General] andi1203:
Is there a software mod to change the standby state? E. G. Fastboot?
[MTCB Android Head Units General] JoeWilcox:
Really all that is needed for someone to find a way to change the 2 hour delay before full shutdown to 12 or 24 hours. I seem to remember someone hooked it up to a meter and said the draw was pretty small but I forget where.
[MTCB Android Head Units General] tospace2006:
The unit seems to open up the last app I was running before shutdown.

Is there any way to disable this or set it up so that it will only open apps I need on boot up?
[MTCB Android Head Units General] SageForce:
How can I install the KLD launcher on my jy head unit?
[MTCB Android Head Units General] andi1203:
Have you found a way?
[MTCB Android Head Units General] Sasha0574:
I remember reading Android versions are interchangeable, so you would need to replace JY Android with KLD Android... but why would you do that when you can customize any Nova-type launcher to look anyway you want... including like a KLD or any other launcher...
[MTCB Android Head Units General] JoeWilcox:
Sadly no. Some people have looked at keeping power there through a hardware mode but that's the wrong approach in my opinion. There has to be some value that can be changed from 120 to say 720. But I haven't dug in to it.

On a side note, anyone know how to stop Bluetooth from trying to play non-existing music when the radio boots. On mine, it boots to PowerAmp, starts player, then Bluetooth comes up and kills it.
[MTCB Android Head Units General] K!lly:
Replacing digitizer on Joyous full touch head-unit

Hi folks !

1st time posting in Android Auto / MTCB units section, and I wanted to share something with you !

Also one thing to say : sorry for the bad English : Frenchy user !

I decided today to replace the touchscreen on my Joyous head-unit. A RK3188 1024x600 model, replacing my previous RK3066 800x480 full touch too.

I already modded the previous one with the mic mod, and sold it to a coworker.

So new unit, and touch screen broken after 1 week. Already had issues with it before the cracking, some touch actions where sometimes non-responsive.

While taking apart the unit from my car for looking at the problem, the screen cracked. So no more touch screen... After a first full disassembly of the front part, I saw why the screen was defective and also why it cracked with a little pressure : some of the 6 screws were too deep in the plastic and were too tight with the metal plate.

Decided to contact the seller on AliExpress, quite a good surprise to see that I bought the unit from the real manufacturer or it seems so ! (email address joyous-sales@hotmail.com)

After some explanations, a new touch screen on the way. $20 paid for the shipping.

After 15 days waiting, received the new touchscreen today.

Disclaimer : I will not be responsible of whatever you'll do to your unit while performing the repairs. DO AT YOUR OWN RISK !

Steps to achieve the hard work :

- Stare a last time to this damn broken screen

- Remove the 6 screws too damn tight from the back side of the unit (3 on each side)

- Open the unit CAREFULLY ! Do not damage the flat wires !

- Gently remove the wires from the front part. After this step you'll have the whole front parts in your hands.

- Disconnect the last flat wire which connects the LCD screen to the board.

- Remove the screen daughterboard with the 5 screws.

- Remove the last screw bottom left which is handling the screen with foam.

- Now the hard part : the LCD screen is glued on the edges with some 3M thin adhesive. You'll have to pry it f***ing gently in order to not damage the screen. Be very careful and take your time.

- After that, you'll have the screen in your hands. Remove the adhesive bits on the touchscreen edges and on the LCD screen edges in order to be able to install it in the new front panel. You can replace the adhesive with a new one, I didn't because the dautherboard and the foam on the back bottom left are enough to make it stay.

- Replace the screen into the front panel.

- Take the steps back to reassemble the unit.

- Open a soda bottle and chill out. :victory:

Some pics of the work done HERE. Feel free to ask me anything about what I've done. I'll try to answer.
[MTCB Android Head Units General] MesS_-):
I have Joyin RK3188 with 1024x600 for Ford can somebody tell me how or wich version of Sygic work for this unit ?

I root with factory setings and install superSU, xpose and framework to change IMEI of unit to imei of my phone, but Sygic work maibe 20minutes and after jut wonna to manage maps.

Thanks
[MTCB Android Head Units General] jbleasdale:
No idea about Sygic I'm afraid, but I have found that Waze works really well on my Joying HU when online and Here maps is a good free option for offline.
[MTCB Android Head Units General] Aender84:
Hello, is there any way to mirror the headunit display on the external monitor? Currenly I can only see the image if I insert one dvd, otherwise it says no signal on the external monitor.
[MTCB Android Head Units General] Lugi01:
Hi all!

It seems like my Joying HU is draining my battery. Is it normal that if I press the power button, even without the key in the ignition, the HU starts up in no time? I mean no booting at all, like on smartphones you go to home screen from lock screen? The HU even connects to my cell if I'm close enough to the car... Thanks!

PS: Here is a video of the situation. https://www.youtube.com/watch?v=dIUA7iDk_Ww

Lugi
[MTCB Android Head Units General] pa.ko:
No it is not normal.

You have to check your wiring. Sometimes constant battery wire and ACC which is on only on ignition are intetchanged in connector.

On the back of HU you will find connector pinout. Or you may search the net. The connector pinout is same on ALL units.

You have to check that right wire from your car harness / connector is conbected to the right pin on HU.
[MTCB Android Head Units General] Lugi01:
Thanks you, I thought something was wrong. Tomorrow I'll have it checked.
[MTCB Android Head Units General] themissionimpossible:
Very likely, especially in Volkswagen cars...
[MTCB Android Head Units General] Zelig:
I see there is now a JY-UQ130 model http://www.carjoying.com/2015-best-...-system-support-camera-dvr-for-universal.html

Has anyone tried this model ? How does it differ from the JY-UQ124 (other than button layout) ?

---------- Post added at 07:40 AM ---------- Previous post was at 07:17 AM ----------

Just wondering if there has been an update ?

J-U1004 on the Joying website now says it is RK3188 Quad Core, 16GB Flash, 1024*600 Screen.

http://www.carjoying.com/joying-bes...n-1024-600-9-colors-buttons-airplay-wifi.html

Comparing the specs, I can't find any difference to the JY-UQ124. Am I missing something ???
[MTCB Android Head Units General] nixfu:
Would have to see inside it. It could be an updated model that the maybe have addressed the issue with the MIC audio or something.
[MTCB Android Head Units General] Zelig:
I emailed CarJoying website and they replied as follows:

----------

Thanks for your E-mail.

Yes, these three are Android 4.4.4 quad core 1024*600 head unit.

JY-UQ130 has a different button layout (and a SRC button).

JY-UQ124 and J-U1004 The difference is the bundled Rear Camera and Car DVR on the JY-UQ124.

The size is 178*100mm.

Could you please tell me what type and which year of your car?

Better send me the pictures of your car center dashboard console. I check whether can fit your car.

Thank you for your support and attention, Wish you have a nice Holiday!

Any other questions, please feel free to contact us.

Have a nice day!

Best Regards,

Joy

----------
[MTCB Android Head Units General] irokgalaxy:
Just got the rk3188 installed today and I have a few questions:

Is there any app or hack I can do to control the subwoofer?

How do I load the car logos for boot up.

Thanks again.
[MTCB Android Head Units General] Aender84:
Hello, so there is no way to get youtube running on the external display? My external display only gets signal when I switch to DVD content
[MTCB Android Head Units General] themissionimpossible:
No possibility at all to convert the internal digital video signal sent to the HU display to the analog video output (i.e composite video, CVBS).

A possibility (but not an easy solution IMHO...) might be to make a HU screen mirroring to another Android device connected to the same wifi network.

Therefore for this solution a wifi tablet would be required.

The app to use might be this (free to test):

https://play.google.com/store/apps/details?id=com.mobzapp.screenstream.trial&hl=en

It's a bit complicated solution, and not tested by myself, so I can't help further...
[MTCB Android Head Units General] espero0101:
You need to enter in the Factory Settings with the code for that.
[MTCB Android Head Units General] Aender84:
IMHO there must be a way to activate the video out port all the time. What I basically want is to mirror the headunit display to the external display using the video out port. Is it that hard? :((
[MTCB Android Head Units General] themissionimpossible:
Yes, unfortunately a dedicated video digital-to-analog converter would be required.

Moreover, NTSC resolution is 720 pixels x 486 lines, PAL's is 720 pixels x 576 lines, then also a scaler is required for the analog conversion.

And a downscaled 1024x600 screen will result in a poor defined analog NTSC image.

No such conversion electronics is included in the head units, so no possibility to get this signal out.
[MTCB Android Head Units General] Aender84:
So how about the dvd image? How's that transmitted?
[MTCB Android Head Units General] themissionimpossible:
The DVD player is a kind of "separate" component within the HU that has its own dedicated hardware and analog video output.

Another video component that is managed at a separate hardware level is the backup camera video input: the image is shown immediately on the screen as soon as the reverse gear is engaged, even if the android system has not yet booted up. And also when the camera is displayed on the screen any android functionality is suspended (radio, music player, navigation, etc).
[MTCB Android Head Units General] florin1up:
hw upgrades

Hello! So happy that found this topic. I have a joying unit too. Did someone found a better music player that works with steering wheel remote buttons? (next / previous)? The stock player is not so great; you cannot put the tracks in a custom order.. Does anyone have the ipod adapter pinout from the Mboard?

[IMG="ipod adapter joying"]http://xdaforums.com/picture.php?albumid=12887&pictureid=51829[/IMG]
[MTCB Android Head Units General] RunNgun42:
Hey I am really confused about what to order on Joying website. They have dozens of units all differently priced and most of them look identical. Look at the following site http://www.carjoying.com/2-din-car-gps-navigation/7-double-din-audio.html

Half of these are the same unit but they are all priced differently. Some say EU this and Warehouse that, but they all seem exactly the same. Whats going on here?
[MTCB Android Head Units General] peterek:
Seems like EU Units are stocked in Europe and are more expensive.

the difference is processor and screen resolution/size and if you want touch buttons or regular buttons, i would go with regular buttons as they are easier to navigate without looking at the radio
[MTCB Android Head Units General] florin1up:
EU price includes VAT tax. That's why are more expensive. If you are from EU, you should buy from EU warehouse.

I managed to "reverse engineering" the ipod connector inside the navi. The big problem is that the ipod app connects, it displays the ipod name (so there is comunication beetwen headunit and ipod) but doesn't load the playlists and after 5 secs I get the error message: "unfortunately, the app has stopped" :( I like ipod because it's easy to manage music. Maybe someone here has an ideea?
[MTCB Android Head Units General] RunNgun42:
So Joying has just made a few quad core units that are all the same but with different button layouts for personal preference?
[MTCB Android Head Units General] mike.s:
I've never gotten the iPod connection to work at all - it will display the iPod's name, but then either crash or hang. I've even tried reformatting the iPod to both FAT (Windows) and Mac (HFS+), no difference.

I haven't seen any discussion where anyone is using it. I think it simply doesn't work.
[MTCB Android Head Units General] florin1up:
It might be a software issue. :( I'm not so good at software so my research stops here.

Has anyone managed to make the next/prev keys to work with poweramp or any other google play app ?
[MTCB Android Head Units General] carter.w.jason:
Has anyone done the radio frequency fix on a JY model? I'm trying to research how feasible this would be for me. The only references I can find are for other board layouts. What information do I need to trace the correct components? Thanks.
[MTCB Android Head Units General] florin1up:
Are you talking about the lack of treble in the radio mode? What model do you have?
[MTCB Android Head Units General] carter.w.jason:
Yes, my model is the Joying 8" VW flush panel, J1026

It's the same PCB as the pictures in 2nd post.
[MTCB Android Head Units General] irokgalaxy:
II get it that you need to change the boot logo in the area where you put in 126 but where are the different car logos? or do I have to load them. Also what will I loose if I root the unit. Thanks for any responses
[MTCB Android Head Units General] florin1up:
You must change the resistors indicated with red with values between 10-100 ohms (both must be same value). That's the simplest way. The other way is to change some smd capacitors. Anyway you must have great skill in smd soldering. You can destroy the printed circuit very easy.

http://xdaforums.com/picture.php?albumid=12887&pictureid=51843
[MTCB Android Head Units General] Piaband:
Edit. Deleted.
[MTCB Android Head Units General] teddyking:
i asked Joying about how to make ipod interface cable, he told me nothing and he didn't know about ipod pin-out on the motherboard.

Now i can use ipod video 5.5gen with Poweramp app. The mentioned app can be able to scan and populate music by artist and album.

The built-in EQ of Poweramp is incredibly good.

Actually, i want to change default music player to Poweramp but i might have to root unit. To do that, i will lose some function about mirror screen with android phone.

Joying said he wasn't sure if i want to revert back to original status is possible. So, i skip rooting for now.

My solution now it install Poweramp + Car service. On the default music player, i point the song folder to any folder that has no any song in it. Then it is like i disable default music player, otherwise u will here 2 songs from Poweramp + default music simultaneously.

i can use steering wheel control to change track. Only one draw back is the start up time is delay, i have to wait until Car service launch. Second is Car service is not automatically startup in hot boot.

i've never found better solution for now.
[MTCB Android Head Units General] jbleasdale:
This is what I have done - Car Service + PowerAmp works really well. Rather than try to get my iPhone working, I instead keep a 480GB SSD in the glove box and occasionally sync this with my iMac at home.

I haven't spotted any problems with waiting for Car Service startup. The button mapping is there at boot.
[MTCB Android Head Units General] MesS_-):
All the best to xda in 2016.

I have one question .

I have superSu to Joying Ford navigation chip is 3188 sreen is 1024x600 , and install viper4android 4.x.x. but when need to finish instalation I need to reboot.

How reboot , no button for reboot only power off ?

Sorry on bad english
[MTCB Android Head Units General] florin1up:
In case of someone wants to fix the original ipod app.

I have studied the circuits and this is the pinout. I tryed my ipod, he connects but ipod app crash after 3-4 secs. I don't know the software part :(

[IMG="zoom"]http://xdaforums.com/picture.php?albumid=12887&pictureid=51850[/IMG]

The SGN pin must be connected to GND when ipod is connected (starts the ipod app and gives 5V)

this is the ipod pinout

http://pinouts.ru/PortableDevices/ipod_pinout.shtml
[MTCB Android Head Units General] superbman:
Hey guys

Just hoping for some advice and this thread has gotten a bit big for me to sift through as well as me not knowing what exactly to search for.

So I recently bought and installed one of these Joying 3188 units and I love it but the thing I hate is how it displays incoming calls and does not properly match names to these numbers. The default Bluetooth and contacts app is horrendous. I have searched around and can't find a replacement. I want to get something that works like most other Bluetooth head units where contact names show up, where call notification doesn't take up a quarter of the screen and where the incoming/outgoing/recent calls are automatically named (currently, names aren't attached to phone numbers and it's really ugly/annoying because I have to keep my iPhone out to know who is calling).

Any suggestions?
[MTCB Android Head Units General] carter.w.jason:
Xposed-mtc-bt can fix some some of those issues.

http://xdaforums.com/android-auto/mtcb-software-development/xposed-modules-units-t3263966
[MTCB Android Head Units General] RunNgun42:
My RK3188 unit seems to have the gain dialed way up. I have to set the volume between 5-10% to avoid blasting my eardrums, and whenever I pause a track I can hear the hiss of a muted speaker in the background. Anybody know how to chill the volume output on this thing?
[MTCB Android Head Units General] sfazzina:
Same for me

I am having the same issue.

I love the unit but there are small annoyances all over the place.
[MTCB Android Head Units General] HenrikH29:
Try Factory Settings, password "126". As i remember there is an option to set sound level of the different sound sources.
[MTCB Android Head Units General] sfazzina:
Ok I will try and reply if it works. Thank you in advance if it does ;)
[MTCB Android Head Units General] HenrikH29:
It's located in the Audio section in Factory Settings - se attached picture.
[MTCB Android Head Units General] RunNgun42:
I did this, unfortunately those are all for external audio sources like bluetooth and iPod and stuff. The audio source I am having problem with is the head unit itself. This appears to be a problem with my bose audio system and the factory amp installed. Forums for my car indicate a lot of special actions need to be taken to upgrade ANY head unit with my car. No car stereo shop has been able to do it properly so I'm just going back to stock. The joying unit seemed cool but looks like I'll have to just throw a tablet on the dash with magnets and go AUX in.
[MTCB Android Head Units General] doctorman:
Some updates on CarJoying units

Software: ROM android 5.1 update should be out by March 2016

Hardware developments are underway with Snapdragon 820A as the next processor
[MTCB Android Head Units General] superbman:
So I gave up on the Bluetooth issue but now am having trouble with steering wheel controls. Got them wired up and working and they are detected fine. Just hoping to get it so the stereo will actually skip a song in Spotify when I hit next song. As of now, the forward and backward buttons only appear to work in the default music app. I've tried using carservice (but this only seems to work on android phones and if the android phone is connected via Bluetooth) and the rk3088 app but that did not work either.

Thought I'd try tasker but it doesn't seem to work on Spotify. Any ideas on how I can control Spotify with the steering wheel controls?