yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] ktibor69:
Did you upgrade the screen too? 800x480 to 1024x600?
[MTCB Android Head Units Q&A] veget83:
Absolutely not...I have replace only the touch screen display,

The touch is a little glass cover of the real display LCD

I don't know is possible to upgrade LCD display ...

Inviato dal mio HTC One M8 utilizzando Tapatalk
[MTCB Android Head Units Q&A] DJCannonball:
i didn't know that. as we speak about this, i don't want the OS to alter the sound in ANY way. i just want a clean output "as is" and if i want to change anything on the sound, it's done by my own external hardware.

any changes done by HU degrades the sound. this because our HUs can't do the job right
[MTCB Android Head Units Q&A] mlinke78:
Can someone help me with my problem? can i start the update manually?
[MTCB Android Head Units Q&A] DJCannonball:
i have the same problem. i was on MCU KLD 2.55 (music mod)

i flashed KLD v.2.64 with sleep and redesigned sound processor from darkleo

then i noticed some frequencies don't sound right, my volume knob stopped working and later on i also noticed that radio wasn't working anymore!

so i went ahead and flashed KLD v.2.78 from sleep mode

the sound is better, volume knob keeps working, but still no radio!

i flashed back to KLD v.2.55 with sleep and redesigned sound processor from darkleo

everything is back to normal.. but you guested it: still no radio!

does anybody how to get the radio operational?
[MTCB Android Head Units Q&A] pcmender2005:
Did you check the radio chip in factory rest settings code us 126 made sure it was the right one then I flashed malaysk rom without the launcher and all worked fine sorry to hear you got the same problem.
[MTCB Android Head Units Q&A] Profane4711:
Hey, i have another question. After i installed the last available Malaysk ROM, my volume button jumps wild up and down when i turn it.

The steering wheel control works perfect.

And another thing is, i have an OBD bluetooth dongle, my radio find it but a connection is not possible. I don't get a prompt to fill

the PIN code in for connection to the dongle.
[MTCB Android Head Units Q&A] jperezch:
When turning on your unit, just keep pressing power button until you hear a series of beeps and keys illumination starts blinking. Then you'll get into recovery and will be able to install new rom and/or mcu from there.
[MTCB Android Head Units Q&A] nleitao:
Damn, it worked with me...
[MTCB Android Head Units Q&A] mlinke78:
Hello, i start my car and the unit begin to boot. When i then press the power button the display goes dark and the keys go dark. But nothing happens any more. when i release the power button nothing happen. when i then press the power button the display goes on and my radio play.
[MTCB Android Head Units Q&A] eybjerke:
Well, it's not the case for me. No codes appear anywhere.

SWC buttons work for firmware Applications.
[MTCB Android Head Units Q&A] DJCannonball:
yes, i checked all the radio chipsets. i have tried them all. for each selection i had to apply, exit and reboot.

none of them seem to work, but i did notice some of the chipsetselections caused my whole HU to stop making any sound, no sound at all, not even mp3player. so to not making things worse, i selected the stock radiochipset (in my case the 2nd from above) at least i can play mp3s now

i don't like the next-launcher, i use the firmware without next-launcher
[MTCB Android Head Units Q&A] Telemachus:
I think a lot of people would save a lot of time of the very first thing they did when they turn on the radio was take screen shots of the following:

FW version. MCU version. Kepmap settings. Radio/tuner settings.

Basically "about machine" and every screen under factory settings.

Btw: anyone dealing with black recovery screen glitch after messing with dimming schedules: there is an option in Settings to update the firmware. It looks for update and FW versions ANYWHERE on the storage media, not just root. In my case it found Malaysk rom and a JY MCU that were in different folders and installed both, so be careful that you only have the ones you want on the media.

It goes into recovery and flashes automatically.
[MTCB Android Head Units Q&A] vdubskey:
Insert sd card into gps card slot. Go into settings/about machine/system updates. It will start the install. Make sure only update.img and mcu.img and nothing else is on the SD card.
[MTCB Android Head Units Q&A] pcmender2005:
Did you flash the MCU and the rom at the same time that's what worked for me mate I had the same as you some low fuzzing sound before I flashed MCU 2.55 and the rom once flashed all worked fine
[MTCB Android Head Units Q&A] DJCannonball:
That should not matter in the first place, but i will give it a go tomorrow. Thanx for the tip.

Verstuurd vanaf mijn D6503 met Tapatalk
[MTCB Android Head Units Q&A] pauloz2003:
Updating: the noise while playing DVD only appears when I have used the Radio before. If I turn on my unit and use DVD without use radio before, I have NO noise.

I realized it happens only with connected TV module. If it is not connected, no noise.

I've tested in two units, same problem.
[MTCB Android Head Units Q&A] Telemachus:
Bluetooth Module

This post has a view of the BT module that is common to these radios:

http://xdaforums.com/showpost.php?p=62682228&postcount=10

I have read that they are based on CSR Bluecore BC5/6. The spec sheets on the chip show that analog audio D1-B3:

https://encrypted.google.com/url?sa...K2MZZBKM7WyqtTKQw&sig2=wL_E2J-Svne7oPxNRMq41g

My guess is that these pins are tied into ROUT and LOUT, and those pins carry the analog audio to the MCU. This could probably be tested by hooking a small standard amplifier to see if it can decode (ie: analog audio?).

If so, could we bypass the BT unit's audio capabilities entirely, and use a separate amp/mic unit for the bluetooth audio? Just have a mic that is always on, but only transmits sound when the MCU turns on the bluetooth "channel"?
[MTCB Android Head Units Q&A] goodboyz358:
I have even redone the whole antenna cable and put a different WiFi antenna on it. A 6dbi omni antenna and still not improvement

. The last unit I had before they sent me a replacement I didn't have to add a WiFi antenna. It worked great no problems. I don't know why this new unit is having so much problems but the last unit I had I didn't have this problem. They are the same units. Idk what else to do to get it to connect better to my home WiFi......
[MTCB Android Head Units Q&A] goodboyz358:
I have a WiFi antenna connected to the rp-sma cable then the cable is soldering inside hu. From antenna to cable go hu is maybe 4inches.
[MTCB Android Head Units Q&A] clearchris:
This happened to me too. I believe I wasn't using malask's ROM at the time. Happened only once, haven't seen it happen since.

Do you have a KLD?
[MTCB Android Head Units Q&A] nFKT:
Do I need a powered USB hub to power up a wifi adapter in this device?
[MTCB Android Head Units Q&A] 2safe4you:
Hello

Short Question. The ROM, how can i Open it?

Gesendet von iPhone mit Tapatalk

---------- Post added at 22:19 ---------- Previous post was at 22:18 ----------

Original or Customer.

Gesendet von iPhone mit Tapatalk
[MTCB Android Head Units Q&A] Downhillmonkey:
Yes, it's the KLD2. Its a real pain, it's taken me ages to get everything back, settings, etc. No warning either, just the error message and a complete reset back to Russian :rolleyes:
[MTCB Android Head Units Q&A] Telemachus:
OP mentions TWRP... but it seems no one uses it. Does it not work?

Stock recovery has an option to restore from a backup file.

Is there a way to Nandroid these head units and keep them in a safe place?

It would sure make tinkering less worrisome.
[MTCB Android Head Units Q&A] nathan951:
So I like JetAudio, it looks clean and is simple to use with playlists... but having an issue getting it to autoplay on bootup.

I have tried prop builder and HeadUnit to auto load/play, but its only done it about 1/10 reboots. If I start playing it seems to pause/play about 2mins after bootup.

JetAudio also seems to loose the now playing on reboot, maybe this is partial reason?

What is the fastest way to get JetAudio to resume playback after bootup. (Before launcher, gmail......)

Thanks

Nathan
[MTCB Android Head Units Q&A] goodboyz358:
I have a WiFi antenna connected to the rp-sma cable then the cable is solder inside hu. From antenna to cable to hu is maybe 4inches. From my house to car is roughly 15feet away from the WiFi router.
[MTCB Android Head Units Q&A] nFKT:
Can anyone confirm a RTL8188 chipset based USB dongle should work for wifi? So far RTL8191 devices did not work as they were stated to earlier in this thread. I'm really hoping to get wifi working soon as just about everything else on this unit is perfect.
[MTCB Android Head Units Q&A] marty_s13:
I have been told that my high visibility brake light isn't working anymore and I'm wondering if its to do with the HU install? I'm not sure how long its been out though. I got a Eonon unit off eBay that was designed for a 2007 Camry (my car) and there was one plug with a few wires that couldn't connect to the unit. I'm wondering if that had something to do with the brakes somehow? The factory GPS didn't plug in either but I was expecting that. My normal brake lights are fine. Probably just a coincidence but the high vis is LED so very strange for it to fail.

EDIT: the guy must have been on crack. Was driving home tonight and I could clearly see the brake light reflecting off the back window.
[MTCB Android Head Units Q&A] DJCannonball:
I flashed MCU 2.55 music mod and the latest Malaysk firmware RK3066 at the same time and also chose "clear" before flashing.

Unfortunately, radio is still not working, not even noise
[MTCB Android Head Units Q&A] pcmender2005:
I am sorry mate to hear that mate. I got told one more thing to do was a factory reset after update mate
[MTCB Android Head Units Q&A] DJCannonball:
Then it seems that my radio module has died.

i'm very interested in Typo's DAB+ module (actually DVB-T module)

Jacky (from Klyde's) can sell those, but she says the DVB-T module cannot be used for DAB+ receiption.

[MENTION=318243]typo[/MENTION]s says it can, Jacky says it cannot.

does anyone have any experience in this?

(first 2 pictures is how my current am-fm radio module looks like, the last 2 pictures is what Typo's DVB-T module looks like)
[MTCB Android Head Units Q&A] gnox:
DJ - what was the original MCU on your unit?

I have a KLD that came with v2.30

It's the ONLY MCU version that gives me radio. Every other one upto v2.78 has total silence.

I have to stay on 2.30
[MTCB Android Head Units Q&A] DJCannonball:
that's really wierd.. i came from MCU 2.55. went to 2.64 silence radio went to 2.78 -> silence radio went back to 2.55 -> silence radio (how wierd??)

my hu came origininally with 2.30

i will try that thanx!
[MTCB Android Head Units Q&A] RichyE:
did you choose the correct chipset for the radio in settings/factory???
[MTCB Android Head Units Q&A] KeiserSozeyFr:
It will be possible with the next version of CarService. I am working on it.
[MTCB Android Head Units Q&A] DJCannonball:
yes i did. as i posted before. but thanx
[MTCB Android Head Units Q&A] pk313:
So I can imagine no news about a DAB+ card from klyde to upgrade the system

Inviato dal mio SM-A500FU utilizzando Tapatalk
[MTCB Android Head Units Q&A] DJCannonball:
it's really a DVB-T module, not specific a DAB+ module.

i have a usb dvb-t module for testing (logilink), but it can do DAB+ as well though it came with a crappy aerial :(
[MTCB Android Head Units Q&A] ReshamG:
HU unit doesn't support this. Is it just plug n play for dongle or did I missed anything to do?
[MTCB Android Head Units Q&A] clearchris:
I don't know if it's the flash but EC46 (in pic 2) looks like it has bulged from the bottom, tilting the top. If that's true, that could be your culprit.
[MTCB Android Head Units Q&A] DJCannonball:
thanx.. but i have to try mcu 2.30 first (as [MENTION=2831775]gnox[/MENTION] said)
[MTCB Android Head Units Q&A] clearchris:
Absolutely. But is it bulged? Or is it an illusion from the camera?
[MTCB Android Head Units Q&A] pk313:
That's. ...normal unfortunately. ..and a good antenna cost three times a dab+ usb receiver

Inviato dal mio SM-A500FU utilizzando Tapatalk
[MTCB Android Head Units Q&A] kruuth:
Ok Guys, we're going to open the unit to add an external wifi antenna. How do we knockout one of the holes on the back? For that matter, how do we get inside this? Are there just some holes on the top?
[MTCB Android Head Units Q&A] Telemachus:
If you can't figure out how to open the head unit you might want to stop right there...

:o
[MTCB Android Head Units Q&A] DJCannonball:
i was about to flash MCU KLD 2.30 but i can't find it on the repositories.

do you still have it?
[MTCB Android Head Units Q&A] DWilks:
[MENTION=3090397]kruuth[/MENTION], On my JY HeadUnit there is 1 screw on each side of the top and only 1 in the back.

Using the Phillips screw driver to remove the 3 screws, I used it with a tap from

my hand and removed the knock out from one of the holes in the back to install the connector for the antenna......but the added 5db antenna did not help my wi-fi reception :(......your results may vary but worth a try!
[MTCB Android Head Units Q&A] kruuth:
Yeah we got it. Here's a quick walk through for anyone that wants to do it

1. Remove the three screws on the top of the unit. Pop the lid off. Look at the right side of the unit with the front facing away from you(the back connections should all be visible) look for a wire taped to the side of the unit.

2. Remove the side plate with the wire on it. In my case, it was held in place with 5 screws, two on the front, one on the bottom and two on the back.

3. Remove the tape. Solder in the new antenna wire.

4. Look for a hole in the back. Fortunately my unit did have an open "DTV" hole so I used that.

5. Affix the other end of the antenna wire with the connector through the hole.

6. Replace the side plate.

7. Replace the top plate and, if possible, warranty stickers.

8. Reinstall the unit in the car

I am pulling a slightly stronger signal. Part of the problem though is that in the car that I have, it's tough to get anything because the radio us wrapped in metal where it is located.
[MTCB Android Head Units Q&A] antvic:
Hello Friend DSA. I'm new around here with the theme of TomTom.

I have installed the Terminal app and this is what has left me. I enclose you a screenshot.

Please tell me how should I follow now. Thank you
[MTCB Android Head Units Q&A] gnox:
There you go

Malysk posted a link earlier with all of them - somewhere!

Hope this works for you
[MTCB Android Head Units Q&A] antvic:
I do not understand very well your last statement. I run this command (/etc/install-recovery*.sh) in terminal app?
[MTCB Android Head Units Q&A] DJCannonball:
thanx! i will try this one later on today.
[MTCB Android Head Units Q&A] darkeingel:
Hello guys,

I've bought a CA721 unit some days ago from Aliexpress and install it on my car.

I'm gonna be honest, I don't like it at all.

Currently looking for a way to root this thing, backup the ROM and after that installing a new custom ROM - I don't like the bloatware it comes with, and also feel limited by the fact that I don't have root access.

Also as a hardware problem, it seems like the physical buttons have a problem and everytime I press HOME button it will somehow get stuck and perform the HOME action over and over again until I turn off the screen.

Any progress in finding a way to root this? Or install other compatible ROM?

Info of the device is:

MCU: V3.00H7_CA712_F7E1430

Kernel: 3.0.36+ #883

Build number: D200-20150713.2225-S1

TCON Version: V6.00_HSD70_F77Hi

Media Version: 89J_0025_000000

SN Number: UNKNOWN

Thanks in advance!
[MTCB Android Head Units Q&A] DJCannonball:
try flashing a pre-rooted firmware. links and info are on the first page.
[MTCB Android Head Units Q&A] mike.s:
That's terrible advice. He doesn't have a HuiFei type unit, he's in the wrong thread, and trying to install firmware meant for a HuiFei type unit may result in a "bricked" unit.
[MTCB Android Head Units Q&A] DJCannonball:
oh i didn't see that. then he's in the wrong thread indeed.

i thought HuiFeis were the only ones.
[MTCB Android Head Units Q&A] antvic:
I send you the file "install-recovery.sh" that I found in the "etc" folder
[MTCB Android Head Units Q&A] marty_s13:
Is the latest Malaysk ROM for 800x480 3188 the one in the repository? I think it was created 9th September
[MTCB Android Head Units Q&A] jperezch:
You should press and hold power button before the unit boots up. Or if you can't help it boots when you start your car, then press reset knob while holding power button until you hear the beeps.
[MTCB Android Head Units Q&A] DJCannonball:
Amazing! i had little confidence that only the oldest version 2.30 would fix it, but i flashed it anyway... and boom Radio came back to life after first reboot.

you made my day! :D

then i flashed kld mcu 2.78 -> reboot -> radio went dead -> flashed 2.30 -> radio works

so it appears that KLD MCU 2.78 f*cks up the radiomodule.

somebody please remove it from repository fast!
[MTCB Android Head Units Q&A] darkeingel:
No worries. I won't do that :)

The thing is I'm trying to get the grip of this device... indeed it might not be the Hui Fei type as I don't have notice any of the MCU's that are listed in the thread that is similar with what I have - but since - this is the most active thread I was trying to clarify a thing about my device.

I've been able to transfer from the device an update.img file that was siting on the root of the internal memory, and I want to continue investigation to see if I can root this one or somehow use one of the existing pre-rooted ROMs out there for my device.

Anyone that wish help me with direction, is my hero :)

Thanks.
[MTCB Android Head Units Q&A] rlivin:
Is there a way to remove the weather widget off of the home screen?
[MTCB Android Head Units Q&A] antvic:
And now?
[MTCB Android Head Units Q&A] Telemachus:
AFAIK, it is built into the stock launcher on JY based roms.

You might want to try the KGL Launcher. It gives you a dock on the bottom that is always present, and makes good use of the rest of the screen. Just install it from the links on the OP, and if you like it, you can install it to the root system. It will then become your stock launcher.

It looks like this:

https://cdn-images.xda-developers.com/direct/2/5/9/8/7/8/7/Pic.jpg

Otherwise, any other launcher on Google Play is available for you.
[MTCB Android Head Units Q&A] dazza007:
Hi

I have a the following unit rk3066 4.4.4 mtcb-kld1-v2.67 it is installed with the factory rom and rooted.

The sound quality from the unit is appauling. I spend 2 weeks upgrading my cars speakers then soundproofing the doors.

Is there a good application for handling the sound output as viper4android does not seem affect the sound much. Is there an updated Rom with good sound processing?

Help very much needed !!
[MTCB Android Head Units Q&A] Telemachus:
Bluetooth disconnects

Maybe try a 2.55 MCU file with sound processing:

http://xdaforums.com/showpost.php?p=61291848&postcount=14139

Go into factory settings, CODE 126, first and screen shot EVERY PAGE of the MCU setup.

On another topic, I finally got my wife's KGL to the point that the bluetooth sounds ok. Mic mod, and a Clarion mic from Amazon, and I can now hear her finally.

However, her phone disconnect occasionally from bluetooth, for about 3 seconds, and then reconnects.

Would changing the MCU ROM in any way change how it interacts with the bluetooth module? Or is there a way to extend the antenna on the bluetooth?
[MTCB Android Head Units Q&A] Twilek:
Hi,

I have a Quadcore Joying unit and have a attached a Huawei E1750 (Modem only mode) UMTS Stick. It works pretty well (even without a powered USB hub). After some time, I think mainly when coming back from very bad reception the whole USB/UMTS Stick system will crash. The icon in the top bar will not be updated and if I try to get the status for example via "GSM Status" the App will crash. Rebooting the unit will fix the problem. Is anyone seeing similar behaviour or has a solution?

Regards

Twilek
[MTCB Android Head Units Q&A] 7floor:
Now I think that it was a bad idea, to patch this system application.

Some people were unable to boot their devices due to incompatibility (different ROMs, incompatible MTCManager).

I'm thinking to implement this patch as an Xposed plugin, so that it would be much more safe.

Just wait and watch the thread for update.
[MTCB Android Head Units Q&A] gnox:
Glad it worked!
[MTCB Android Head Units Q&A] Telemachus:
Have you thought about hooking the Parrot up to your steering wheel controls?
[MTCB Android Head Units Q&A] agentdr8:
Hmm, I'm not sure if my aftermarket SWC would work with the Parrot and the headunit at the same time. Something for me to investigate.
[MTCB Android Head Units Q&A] Chris32B:
Okay thank you very much
[MTCB Android Head Units Q&A] Driver1:
Hi all,

I have one question. I bought this unit: http://www.carjoying.com/eu-warehou...-camera-obd2-android-phone-mirroring-wif.html

This unit is with 4-core processor and 1024x600 display.

I have problem with radio fm - it's terrible sound - when i push stereo button its nothing do. Range of antena fm is very good, others players play ok.
[MTCB Android Head Units Q&A] Twilek:
You might try an amplifier for your antenna, it made the reception in my unit considerably better. This is the one they sell themselves http://www.carjoying.com/car-accessories/other-car-accessories/ant-208-universal-car-fm-am-radio-aerial-antenna-signal-amplifier-booster.html but you can use one you get locally (as I did).

Regards

Twilek
[MTCB Android Head Units Q&A] Profane4711:
May it help to reinstall Malaysk ROM?
[MTCB Android Head Units Q&A] geezi:
Hi

Why am I always getting this with power amp. I've bought it in the the play store but getting this error when opening
[MTCB Android Head Units Q&A] Twilek:
Try disabling the Xposed MTC module if you don´t really need it. When I had it enabled my volume control knob stopped working altogether. As I didn´t need the module anyway I disabled it and my volume control worked like a charm ever since.

Regards

Twilek
[MTCB Android Head Units Q&A] Profane4711:
Nice, i will try it right after work. Do you have a solution for my OBD-Problem? The adapter uses bluetooth version 2.1. Is there a compatibility problem?
[MTCB Android Head Units Q&A] antvic:
OK. See the attached images.

I don't know why it doesn't work. I have followed your instructions in detail.
[MTCB Android Head Units Q&A] giornistrani:
Hi friends. I set the automatic update time with GPS , but is indicated 1 hour back ... why ? Thanks
[MTCB Android Head Units Q&A] Mat.:
MTCRadio

Hello all !

[IMG="MTCRadio3"]http://s10.postimg.org/5hiued3mx/Screenshot_2015_10_10_20_56_25.png[/IMG]

everything is functional , sliding buttons included... 1024 x 600
[MTCB Android Head Units Q&A] tmx2200:
Hey guys,

New to this site. I've been lurking this forum for quite a long time (5 months) looking at some of the great tips and tricks, that have been posted in this thread. I almost have everything set up the way I like it in my Joying car unit except one item (the launcher). Can anyone here tell me how I go about replacing the launcher. Right now I am using Malaysk's rom (joying launcher), however when I go under Priv-Apps in root explorer I'm unable to find the launcher location. I have tried copying and pasting the launcher in this folder with no success. If anyone can help me out it would be greatly appreciated.

Thanks!
[MTCB Android Head Units Q&A] meirion:
Mat

Do you have your radio file for 800*480? It is very nice.

Regards

meirion

---------- Post added at 02:55 PM ---------- Previous post was at 02:53 PM ----------

Does anyone have experience of Wavesink? I am getting good reception but no RDS info. Can anyone help please?
[MTCB Android Head Units Q&A] geezi:
Can anyone help here ? Must I update my Google services ? There is no updates though ?
[MTCB Android Head Units Q&A] giornistrani:
Is there someone who can help me? thank you