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2 DIN Pure Android 4.4 QuadCore Freescale i.MX6 Cortex A9 1.2GHz Car DVD Head Unit

I have found some new Android 4.4 car stereo head unit.
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Specifications from the seller:
CPU: FREESCALE i.MX6 ARM CORTEX A9, QUAD CORE 1.2GHz
8 inch Capacitive Touch Screen 800*480 pixels with dynamic GUI (1024*600 optional)
Rich periphery port (SD/MMC, Bluetooth, USB2.0 OTG, UART)
Built-in DDRIII 1G/2G (optional)
Built-in 16G/32G iNAND (optional)
Built-in DVD player, inhaled car special chipset
Built-in Radio PLL tuner with 36 FM/12 AM presets, high quality RDS reception
Built-in Bluetooth ( iPhone 4S/5/5S A2DP playback)
Built-in navigation (map in iNAND)
External Wi-Fi 802.11 b/g/n dongle/Built-in (optional)
External 3G WCDMA/4G LTE dongle (optional)
Support CAN-BUS of Europe Version (optional)
Support DVB-T, ISDB-T, ATSC, Compatible with PAL/NTSC/SECAM format (External or Built-in as optional)
Support iPod/iPhone (Audio/Video playback, charge)
SD card with maximum 32G
4-channel × 45W power output, 4.2-channel line-out: front, rear and 2 subwoofers 5-band equalizer
Parking brake control
Rear camera input
Illumination auto dimmer
Microphone internal & external switch
Support mirror link via USB
Support USB to connect computer
Works with steering wheel controls
All the usual stuff like car DVR, TV, etc.
It can be found on Aliexpress for about $550.
Don't know if there is any universal version but I have found some versions for Mazda, Toyota, Honda, Nissan ...
In Google can be also found as Carit head unit.
Some videos are also available:
Does any body have any experience with this head unit?
I wonder if it is worth those money as there is a lot of HU for less $$ (and huge threads here with bugs on them).

I'm interested as well, especially because of the 1024x600 possible screen definition.
I read other info concerning android double din radio but 800x480 was not comfortable for some applications (waze for instance)

This bigger screen resolution is optional. I wonder if it is possible to order it now or is it only a future feature to get more clients?

_arecki_ said:
I have found some new Android 4.4 car stereo head unit.
Specifications from the seller:
CPU: FREESCALE i.MX6 ARM CORTEX A9, QUAD CORE 1.2GHz
8 inch Capacitive Touch Screen 800*480 pixels with dynamic GUI (1024*600 optional)
Rich periphery port (SD/MMC, Bluetooth, USB2.0 OTG, UART)
Built-in DDRIII 1G/2G (optional)
Built-in 16G/32G iNAND (optional)
Built-in DVD player, inhaled car special chipset
Built-in Radio PLL tuner with 36 FM/12 AM presets, high quality RDS reception
Built-in Bluetooth ( iPhone 4S/5/5S A2DP playback)
Built-in navigation (map in iNAND)
External Wi-Fi 802.11 b/g/n dongle/Built-in (optional)
External 3G WCDMA/4G LTE dongle (optional)
Support CAN-BUS of Europe Version (optional)
Support DVB-T, ISDB-T, ATSC, Compatible with PAL/NTSC/SECAM format (External or Built-in as optional)
Support iPod/iPhone (Audio/Video playback, charge)
SD card with maximum 32G
4-channel × 45W power output, 4.2-channel line-out: front, rear and 2 subwoofers 5-band equalizer
Parking brake control
Rear camera input
Illumination auto dimmer
Microphone internal & external switch
Support mirror link via USB
Support USB to connect computer
Works with steering wheel controls
All the usual stuff like car DVR, TV, etc.
It can be found on Aliexpress for about $550.
Don't know if there is any universal version but I have found some versions for Mazda, Toyota, Honda, Nissan ...
In Google can be also found as Carit head unit.
Some videos are also available:
Does any body have any experience with this head unit?
I wonder if it is worth those money as there is a lot of HU for less $$ (and huge threads here with bugs on them).
Click to expand...
Click to collapse
I have found one universal version http://www.autopumpkin.com/new-prod...h-screen-3g-wifi-bluetooth-obd2-free-mic.html, it costs $389.99, but if you need 1024*600 resolution should pay extra $60.

anan2046 said:
I have found one universal version
Click to expand...
Click to collapse
But this is different unit. It is with dual core 1,6 GH Rokchip 3066, not quad core Freescale.
There is separate thread for those units on xda.

I've purchased a vehicle specific version of this and it's all fitted and up and running.
Does anyone know if this unit can be rooted?

I don't know if it can be rooted, but can you tell anything about this unit? How do you like it? Why do you want to root it, is there anything missing?
Where did buy it? Can you paste a link?

Chrisseh, is it the unit you have?
http://www.aliexpress.com/item/Pure...PS-Canbus-Radio-BT-IPOD-USB-SD/843511550.html
An older version of this device was easy rooted by z4root application. You can try it. You can easy unroot if needed.

Yup! That's the exact one I bought. I'll look into z4root, thanks.
Are there any risks? I can't brick my unit by a failed root?
To answer your other questions.. I love it so far! Everything is snappy and responsive. The actual integration with my car's controls is seemless.
I asked about rooting purely for the future.. Incase I come across an app that won't install and I have to use Market Helper or I want to look into altering boot animations or graphics for the system apps.

I just found that the z4root works with the old android version and most probably it will not work for this unit.
But it is good to know that you look it for the future case
If you don't mind I would like to ask you some more questions about this unit.
What about the bluetooth? Is it possible to use phone and another bluetooth device (like OBD2 interface) in the same time?
I have found your photos in another thread an saw that there was two bluetooth icons in status bar.
Is there good quality sound for the phone calls?
Is there good radio reception signal quality?
What about the audio, is it good or worse than original audio in your car?
What navigation application do you use? Was there any problem with GPS lock?
Have you tested the internet connection (GPRS/WiFi)?
Have you tested USB hub?
Thanks

_arecki_ said:
I just found that the z4root works with the old android version and most probably it will not work for this unit.
But it is good to know that you look it for the future case
If you don't mind I would like to ask you some more questions about this unit.
What about the bluetooth? Is it possible to use phone and another bluetooth device (like OBD2 interface) in the same time?
Unfortunately I don't have another bluetooth device to test this.
I have found your photos in another thread an saw that there was two bluetooth icons in status bar.
I can only presume this is because I was connected via bluetooth for handsfree and also streaming music via A2DP
Is there good quality sound for the phone calls?
Phonecalls could be better but for me they are totally adequate.
Is there good radio reception signal quality?
The radio audio quality isn't great if I'm honest. Doesn't bother me all that much as I rarely listen to the radio.
What about the audio, is it good or worse than original audio in your car?
The audio over A2DP sounds pretty much the same as the original unit.
What navigation application do you use? Was there any problem with GPS lock?
The default navigation app is Navigon. I've used it twice and it has been excellent. No GPS issues whatsoever.
Have you tested the internet connection (GPRS/WiFi)?
Unfortunately this unit doesn't come with built in wifi and I didn't buy the adapter at the time. I've since ordered one from the seller and it should be here soon!
Have you tested USB hub?
I haven't tested a usb hub yet.
Thanks
Click to expand...
Click to collapse
Hope this helps!

Chrisseh said:
Hope this helps!
Click to expand...
Click to collapse
Absolutely. Thank you for the response.
If you have any new thoughts about this unit please share

Root is available.
Our Russian friends did it already with the Root_Zhushou_v1.3.0_rus.apk application. It works.
File:
http://dusias.spaces.ru/files/?read=54056373
Instructions (one click):

Does anybody know how to fix FM radio in this head unit?
It is absolutely unusable. Not possible to seek next/prev stations from steering wheel and very poor radio signal reception.

Absolutely **** ... I having hell of a problems with my FREESCALE i.MX6 ARM CORTEX A9, QUAD CORE
No support of the seller at all . as I have been suggest to look in google .
I can`t restore it to the factory settings cos it ask me for password , looking for another way to get to the restore menu ,if is possible because is custom made Android I guess

milenmarinov78, to restore to factory settings you can try password: 110601.
I haven't tried, but found on some russian page.
Please give some feedback if it works.

_arecki_ said:
milenmarinov78, to restore to factory settings you can try password: 110601.
I haven't tried, but found on some russian page.
Please give some feedback if it works.
Click to expand...
Click to collapse
Yes mate is working Thanks
I`m just worrying if factory restore it to lose some of the custom made apps , because is not pure android 4.4 system
My problem is Google play services and mainly Fused location , every time when restart my player pop up message tell in me that
" The fused location has stop working " I pressing OK then popping up again and then when using Goggle maps to navigate , don't want to recalculate and reroute my journey . Very annoying . Read about it a lot but there is no hoop .
I`ve try to downgrade Google play to lover version and is all working until update himself and going in the same circle .

Thanks. It's greate to hear that reset password works.
Regarding this "The fused location has stop working" issue I had the same problem.
I have downgraded Google Play and disabled automatic applications update in the Play Store application.
Since then I haven't seen this irritating popups.
There is also an option to disable google play service write rights (root required) but I didn't have to try this.
If you want I can search for description of this procedure.

_arecki_ said:
Thanks. It's greate to hear that reset password works.
Regarding this "The fused location has stop working" issue I had the same problem.
I have downgraded Google Play and disabled automatic applications update in the Play Store application.
Since then I haven't seen this irritating popups.
There is also an option to disable google play service write rights (root required) but I didn't have to try this.
If you want I can search for description of this procedure.
Click to expand...
Click to collapse
I did the same thing , but after couple of restarts Google manage to update himself and then the same pop-up message again

Ok, the option with disabling google play updates:
Install Android Terminal Emulator
In Terminal, enter:
su
touch /data/app/com.android.vending-1.apk
chattr + i /data/app/com.android.vending-1.apk
Click to expand...
Click to collapse
I haven't tried this so I am not sure if this is correct and working.
Source
You can find there also option with LuckyPatcher, but is more complicated.

A newbie experience installing a Joying JY-VM130N2 (Intel Sofia 2GB, Android 6)

Hello, I would like to share my experience with my first Android Head Unit (an Intel Sofia Joying JY-VM130N2), installed in my 2009 Volkswagen Passat (B6) in case it works for any one ealse.
I never installed anything like this or related to car audio, but I am familiar with computers an tablets and that sort of things.
This is the before:
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The front panel gets out with your bare hands (but maybe in your case you have to use some kind of prying tool)
As an advice I read many places, don't disconnect the AIRBAG cable in the frame. I just left it hanging.
The radio gets out unscrewing 4 torx screws. You can see there is behind a blue box, and that was a Parrot hand-free that was broken and I had to also remove.
I just disconnected it, connected the Joying unit and voilà (didn't even take pictures of the unplugging/plugging process):
I just installed it with the canbus and disconnecting this cables (which I think other people connects and after they report problems with the unit...):
I had some weird problems with the bluetooth, but it seems to be working perfect now. I can send/receive calls using the Head Unit, and also I have it conected to a cheapo ELM327 bluetooth dongle bought in amazon, and working great with Torque.
Good things about this Joying product:
Cheap, it gave me the opportunity to have a GPS navi system, bluetooth hands free, and other insteresting features a very reasonable price
Installation was really plug&play, as advertised. It took me less than one hour to make the swap (I didn't install any rear cam, or microphone yet, but the unit works decently with the built in microphone).
Cons:
I suspect this unit will not last as an OEM unit, but didn't cost the same neither, I asume that
Not top notch quality here. Some buttons get deleted, the LED color for the buttons is incomplete, and the white LED color is... pinkish. Cheapo, but it works right now...
I had to solve over-heating problems. I installed a heat sink, and a fan, and a modded cover to allow evacuate the heat from the unit.
In any case I would rate this as a 6/10, basically substracting points for some issues as quality endings, terrible English manuals (at least Joying has a very nice collaborative community that makes Joying worth double it deserves). The English manual is simply sad. I had to search in XDA and their carjoying forums/blogs to find out answers I needed to proceed to the installation of the unit.
I demanded a new button that came like scratched or something, or wrongly painted; I hope to see how their after-sales respond.
If you have any questions, don't hesitate to ask. I have some questions I would search the answer and come back here...
Does any body know if I hve my Head Unit paired with my telephone, can the HU use my phone's data plan to navigate or do online stuff?
Can I start SYGIC in the background everytime the Head Units turns on? I live in a place with many speed radars and the main reason I want this unit is to advice me of speed radars in case I get distracted... Now I have to manually start Sygic every time...
How can I improve the radio reception? AM doesn't work at all...
EDIT: I forgot to mention I found it extremely easy to install (AND REMOVE) this units... I think, I could steal this unit in 2 minutes. 3 minutes if I remove the cables carefully and also steal the GPS antenna... Have to do something about it...
EDIT 2: By the way, if you're interested in buying one Joying they have a promotion code 'joyingESP' with a 10% in the Intel unit. I don't know until when that code will work. If you need it, just try to use it and good luck.

ptolomeo said:
[*]Does any body know if I hve my Head Unit paired with my telephone, can the HU use my phone's data plan to navigate or do online stuff?
[*]Can I start SYGIC in the background everytime the Head Units turns on? I live in a place with many speed radars and the main reason I want this unit is to advice me of speed radars in case I get distracted... Now I have to manually start Sygic every time...
[*]How can I improve the radio reception? AM doesn't work at all...
[/LIST]
Click to expand...
Click to collapse
1. You need to root and install an Bluetooth tethering app (read on my Q&A or you can install it via @surfer63 app after you root the unit) so every time the phone connects to the unit you have data also from the phone.
If you don't want to root then you can make the phone a wi-fi hotspot for your unit but you need to start the hotspot manually each time you enter the car or do it automatically via additional software from Google store... if you have an Apple I don't know if you can automate this
2. If you use the NoKill Sofia server custom keys mod and you edit the script properly you can start it every time... or there are apps in the Google store that can auto start apps.
3. I have no clue... I rarely use the FM radio... the AM radio I have never used it the last 20 years or so I mainly stream online radios when I want to listen to the radio... the quality is the best, way better than what an FM radio can offer

edit said:
1. You need to root and install an Bluetooth tethering app (read on my Q&A or you can install it via @surfer63 app after you root the unit) so every time the phone connects to the unit you have data also from the phone.
If you don't want to root then you can make the phone a wi-fi hotspot for your unit but you need to start the hotspot manually each time you enter the car or do it automatically via additional software from Google store... if you have an Apple I don't know if you can automate this
2. If you use the NoKill Sofia server custom keys mod and you edit the script properly you can start it every time... or there are apps in the Google store that can auto start apps.
3. I have no clue... I rarely use the FM radio... the AM radio I have never used it the last 20 years or so I mainly stream online radios when I want to listen to the radio... the quality is the best, way better than what an FM radio can offer
Click to expand...
Click to collapse
I couldn't bluetooth tether, but I think it's due to my old smartphone (android 4.4). It has the option, though, but it seems to not be working properly.
I used tasker to detect when I stablish a bluetooth connection to the Joying head unit, and then I activate WIFI tethering (which the HU detects and connects to).
Thank you for your help though.

duplicated post (sorry)

ptolomeo said:
I couldn't bluetooth tether, but I think it's due to my old smartphone (android 4.4). It has the option, though, but it seems to not be working properly.
I used tasker to detect when I stablish a bluetooth connection to the Joying head unit, and then I activate WIFI tethering (which the HU detects and connects to).
Thank you for your help though.
Click to expand...
Click to collapse
Install Bluetooth BluetoothTethering.apk from the link below on the headunit and phone and follow the settings from the post fort he headunit and phone.
https://forum.xda-developers.com/an...elopment/bluetooth-settings-launcher-t3504526

edit said:
Install Bluetooth BluetoothTethering.apk from the link below on the headunit and phone and follow the settings from the post fort he headunit and phone.
https://forum.xda-developers.com/an...elopment/bluetooth-settings-launcher-t3504526
Click to expand...
Click to collapse
I tried but couldn`t (got error) because my smartphone is android 4.4 and lbdroid compiled against minimum android 5.1.
I tried to activate bluetooth tethering manually but even though it aparently was ok, the head unit failed to connect to Internet.
Thank you for the advise though.

ptolomeo said:
I tried but couldn`t (got error) because my smartphone is android 4.4 and lbdroid compiled against minimum android 5.1.
I tried to activate bluetooth tethering manually but even though it aparently was ok, the head unit failed to connect to Internet.
Thank you for the advise though.
Click to expand...
Click to collapse
on the phone try this app maybe it works with your android version
https://play.google.com/store/apps/details?id=nu.mine.qos.btautotethering

Extremely Weird Radio Issue on Funrover Head Unit

Hi all,
I've bought this unit for my Mazda CX-7 and had it professionally installed - it ran fine for a while and I was very happy with it.
A rather weird issue developed - on this unit the FM radio starts automatically when you turn on the ignition (there doesn't seem to be a way around this) and when the Radio App is running, I can hear the radio fine, and if I start another app such as Google Maps as long as the radio is running I can hear sounds normally. However if I manually exit the radio or if an app takes over audio (say Spotify for instance) the head unit goes completely silent, only to be revived again when I reload the Radio app. This of course makes the head unit useless for music and bluetooth as as soon as any of these apps are loaded the unit goes silent.
On the manufacturer's advice I reset the CANBUS settings and verified with them that the CANBUS was set right for my make and model of car - still the same result. Tried all CANBUS settings that even mentioned Mazda, no luck.
I really don't know how to start trouble shooting this - I have been provided four different firmwares by the manufacturer all of which exhibit the same issue which indicates to me it may be an underlying hardware issue?
Just a quick dump from my 'About Device' if that assists at all. Any help/suggestions greatly appreciated, any relevant logs or files will be quickly gathered and posted
Android Version
8.0
CPU Info
CPU: Intel ATOM 4QuadCore(x86), GPU4D Mali 450 MP4, X86
Baseband version
SF3GR_M-26.3_cpeg_rk-r2p_bc2-20160629_111639
System Info
APP 1024x600 2018-06-06 22:50:08
MCU Version
2018-06-02 12:16:25 FAD_(R76)_90_D1_V1.0_CAN(All)_AMP
CAN Version
Unknown
Car Application
Car Application Information
Serial number
00000000

carburngood said:
A rather weird issue developed - on this unit the FM radio starts automatically when you turn on the ignition (there doesn't seem to be a way around this) and when the Radio App is running, I can hear the radio fine, and if I start another app such as Google Maps as long as the radio is running I can hear sounds normally. However if I manually exit the radio or if an app takes over audio (say Spotify for instance) the head unit goes completely silent, only to be revived again when I reload the Radio app. This of course makes the head unit useless for music and bluetooth as as soon as any of these apps are loaded the unit goes silent.
On the manufacturer's advice I reset the CANBUS settings and verified with them that the CANBUS was set right for my make and model of car - still the same result. Tried all CANBUS settings that even mentioned Mazda, no luck.
Click to expand...
Click to collapse
That the radio starts on these units on reboot can't be changed. It is a hardware "feature". The radio chip and AMP-chip are "awake" before Android is even running. That is why you hear the radio after cold boot. And for your convenience the radio app is also started, but that is only a front-end that allows you to either enjoy and control the radio(-chip) or switch it off.
I don't think the CAN-bus has anything to do with this behavior, but I can be wrong.
I think that when you switch off the radio, also the AMP is switched off, or maybe even disabled.
If you switch off the radio, can you check in your Settings whether the AMP is still enabled? And maybe play/try a few things?

surfer63 said:
That the radio starts on these units on reboot can't be changed. It is a hardware "feature". The radio chip and AMP-chip are "awake" before Android is even running. That is why you hear the radio after cold boot. And for your convenience the radio app is also started, but that is only a front-end that allows you to either enjoy and control the radio(-chip) or switch it off.
I don't think the CAN-bus has anything to do with this behavior, but I can be wrong.
I think that when you switch off the radio, also the AMP is switched off, or maybe even disabled.
If you switch off the radio, can you check in your Settings whether the AMP is still enabled? And maybe play/try a few things?
Click to expand...
Click to collapse
The amp is still enabled in the car settings app if that's what you mean? Or are you thinking more on the hardware side?

carburngood said:
The amp is still enabled in the car settings app if that's what you mean? Or are you thinking more on the hardware side?
Click to expand...
Click to collapse
What I meant is if you switch Amp off (no Amp) and then back to the value it had, and then try spotify or whatever.
Just a guess.

surfer63 said:
What I meant is if you switch Amp off (no Amp) and then back to the value it had, and then try spotify or whatever.
Just a guess.
Click to expand...
Click to collapse
Thanks, gave that a go but no luck any other thoughts ?

Anyone else? Any logs or anything I can provide that may be useful?

*bump*

Last time
*bump*

carburngood said:
*bump*
Click to expand...
Click to collapse
Is the manufacturer not willing to replace it?

No they're not

I have the same problem. The radio worked without any problem until I made the factory reset ( wifi wont work ) and from then on I have only the sound from fm radio app.

Hi there, changing this setting worked for me - for me I had to choose RZC and RZC.AMP but try a few MCU upgrades in this setting and see what works for your vehicle.
I also found the Funrover guys to be very communicative so try contacting them directly - as part of the trouble shooting process they provided me a couple of firmware updates - including putting one together especially for me based on the issues I was experiencing.
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it does not work with me. I tried all the mcu options, I updated device using the software drovided by funrower, there is still no sound via mp3, bluetooth or video, only radio. MCU i think seted correctly because I have working steering wheel controls or mazda additional display... any other suggestions ??

Did you try all the MCU options with Mazda listed? I had to play around with a few and only RZC worked for me. If none of them work contact Funrover for their latest firmware and try the various Mazda MCU options.

New Funrover firmware ?
carburngood said:
Did you try all the MCU options with Mazda listed? I had to play around with a few and only RZC worked for me. If none of them work contact Funrover for their latest firmware and try the various Mazda MCU options.
Click to expand...
Click to collapse
The CANBUS doesn't work correctly in a recent Funrover Android 8.1 installed in an Honda Accord 7 (recent firmware). I have test several type of CANBUS and there is nothing to do. On the other hand, I have read in another thread that there is identical issue with a Seicane Android 8.0 and a similar Honda car. Perhaps it is a problem related to Android 8.x version. I wait for a response from Funrover but I don't expect much.

carburngood said:
I also found the Funrover guys to be very communicative so try contacting them directly - as part of the trouble shooting process they provided me a couple of firmware updates - including putting one together especially for me based on the issues I was experiencing.
Click to expand...
Click to collapse
Could you please share how to contact these guys? Is there a support email or something?

Hi all
Android 9.0 is out
Any of you installed latest firmware?
I have this head unit with android 8.0 for my kia sportage 2018
https://s.click.aliexpress.com/e/4cTppPHW

https://yadi.sk/d/UifaCXkWMhFmMg

Pacovich said:
New Funrover firmware ?
The CANBUS doesn't work correctly in a recent Funrover Android 8.1 installed in an Honda Accord 7 (recent firmware). I have test several type of CANBUS and there is nothing to do. On the other hand, I have read in another thread that there is identical issue with a Seicane Android 8.0 and a similar Honda car. Perhaps it is a problem related to Android 8.x version. I wait for a response from Funrover but I don't expect much.
Click to expand...
Click to collapse
After that, I have selected XP - Toyota - RAV4 - xxxx16xxxx in my Accord 7 Executive and it works almost completely. State of buttons with LED inside are not shown or shown inverted in the emergent screen. Thus, If a button has LED, I observe its state, but, when a button hasn't a LED, I observe its state on the emergent screen. It's a little yam but it's the only solution I have found with this unit.
On the other hand, I have selected a vehicle in the "China" subgroup and the screen has begin to shown many a many CANBUS codes on the screen. It seems to be a debug option. But unfortunately, I hasn't been able to repeat the sequence in order to activate this mode another time. It ocurred a day when I have tested all vehicle models and I have selected them very quickly.

Pacovich said:
After that, I have selected XP - Toyota - RAV4 - xxxx16xxxx in my Accord 7 Executive and it works almost completely. State of buttons with LED inside are not shown or shown inverted in the emergent screen. Thus, If a button has LED, I observe its state, but, when a button hasn't a LED, I observe its state on the emergent screen. It's a little yam but it's the only solution I have found with this unit.
On the other hand, I have selected a vehicle in the "China" subgroup and the screen has begin to shown many a many CANBUS codes on the screen. It seems to be a debug option. But unfortunately, I hasn't been able to repeat the sequence in order to activate this mode another time. It ocurred a day when I have tested all vehicle models and I have selected them very quickly.
Click to expand...
Click to collapse
After updating to Android 9.0, I have selected Honda Accord 7 and its emerging screen works fine. It seems that update solves the issue.
Android 9.0 firmware for funrover head unit
Hi all, I purchased this head unit with android 8.0 for my kia sportage 2018 https://s.click.aliexpress.com/e/4cTppPHW I need to know if i can update it to android 9.0 firmware. Best regards to all
forum.xda-developers.com

Unknown devices MCU and bluetooth problem

Hello everyone, first a greeting
and then I wanted to ask for information, having just bought an android car radio for my dacia sandero, and I found some problems:
1) bluetooth connects me ONLY to apple android phones but to no ODBII devices, I have tried 2 without success.
From here they go into settings I can't understand which car radio model is mine, Android 10 MCU STx, 8-inch display I try to attach some photos, if someone can help me with bluetooth or even flash the rom.
Asking sellers until now is unable to help me.
Thank you in advance.
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Looks like you're looking for support for a new purchase or recent purchase. In the first instance, what does the seller suggest when requesting support?
If the seller is unable to help you with your purchase, take some time to read through the forums, you might find a number of answers to your questions, with a little effort. Be prepared to give back, contributing - writing about your finds to help others.
I noticed your original post in Android auto has changed from this duplicate post, but that doesn't change your involvement to do some ground work and using the search function.
XDA isn't paid support, if your seller isn't providing you what you need, you have to make some effort - like searching.

kalamot1962 said:
Hello everyone, first a greeting
and then I wanted to ask for information, having just bought an android car radio for my dacia sandero, and I found some problems:
1) bluetooth connects me ONLY to apple android phones but to no ODBII devices, I have tried 2 without success.
From here they go into settings I can't understand which car radio model is mine, Android 10 MCU STx, 8-inch display I try to attach some photos, if someone can help me with bluetooth or even flash the rom.
Asking sellers until now is unable to help me.
Thank you in advance.
View attachment 5067879
View attachment 5067881
View attachment 5067883
Click to expand...
Click to collapse
It´s always the same issue...
Pull out the OBD dongle
Switch off BT on any smartphones you are connected with the head unit
Delete the BT connection to the head unit on all phones.
Delete all BT connections from your head unit.
Do a cold boot
Connect the OBD dongle to the car
Connect AT FIRST the OBD dongle and test the connection.
After the connection is established reboot the unit
Wait until OBD is connected
Connect NOW your smartphone by activating BT on your phone and search from the head unit.

no success
rigattoni said:
It´s always the same issue...
Pull out the OBD dongle
Switch off BT on any smartphones you are connected with the head unit
Delete the BT connection to the head unit on all phones.
Delete all BT connections from your head unit.
Do a cold boot
Connect the OBD dongle to the car
Connect AT FIRST the OBD dongle and test the connection.
After the connection is established reboot the unit
Wait until OBD is connected
Connect NOW your smartphone by activating BT on your phone and search from the head unit.
Click to expand...
Click to collapse
HI.
I tried the suggestion without success, deleted the cell phones also restored the network settings at the time of the BT search (made from cellular settings) the ODBII device is found, but at the time of the connection it disappears and returns to the main search screen.

kalamot1962 said:
HI.
I tried the suggestion without success, deleted the cell phones also restored the network settings at the time of the BT search (made from cellular settings) the ODBII device is found, but at the time of the connection it disappears and returns to the main search screen.
Click to expand...
Click to collapse
Did you set the PIN correctly? Mostly for these OBD devices is 1234 or 0000.

no success
rigattoni said:
Did you set the PIN correctly? Mostly for these OBD devices is 1234 or 0000.
Click to expand...
Click to collapse
yes in car radio bt (phone) setting is presetted 1234, maybe better change in 0000?
time ago, i try to connect with my cell phone if isn't in mistake the pin is 1234.
cell with odbII

That depends on the BT dongle.

BT problems
rigattoni said:
That depends on the BT dongle.
Click to expand...
Click to collapse
I try to connect again with the mobile phone to verify the PIN of the ODBII, after I try again with the car radio,
or if better i can download/use another application to setup the BT
I would like to try other ROM if possible, since there are other problems
1) the cell phone usb dongle is recognized, but it connects ONLY in 2G / 3G despite being a 4G with reduced speeds of course.
2) the BT menu is very brainy compared to that of a mobile phone, I don't understand the reason to put it under the TELEPHONE menu instead of elsewhere.
PS. if u can do we can connect with messanger cam or whatsapp to see the situation in realtime.
(i'm italian)

kalamot1962 said:
I try to connect again with the mobile phone to verify the PIN of the ODBII, after I try again with the car radio,
or if better i can download/use another application to setup the BT
I would like to try other ROM if possible, since there are other problems
1) the cell phone usb dongle is recognized, but it connects ONLY in 2G / 3G despite being a 4G with reduced speeds of course.
2) the BT menu is very brainy compared to that of a mobile phone, I don't understand the reason to put it under the TELEPHONE menu instead of elsewhere.
PS. if u can do we can connect with messanger cam or whatsapp to see the situation in realtime.
(i'm italian)
Click to expand...
Click to collapse
I try with BT cellphone, and the password / pin is 1234 not 0000 the same as that set on the car radio but in the latter it does not connect

All Android radios have a reduced BT setup.
You won´t find any other implementations.... and no, you can´t change the BT app, this is dependent of the hardware.
Check the Alwinner threads with MCU: STM*** for any updates regarding your unit. I don´t know if there are custom ROM available.
...and no, no support via PN/Messanger... sorry.

rigattoni said:
All Android radios have a reduced BT setup.
You won´t find any other implementations.... and no, you can´t change the BT app, this is dependent of the hardware.
Check the Alwinner threads with MCU: STM*** for any updates regarding your unit. I don´t know if there are custom ROM available.
...and no, no support via PN/Messanger... sorry.
Click to expand...
Click to collapse
No problem for support its only not important chance, for MCU i don't know where i can find upgrade.
but a bit question, ROM Custom or Not i know what mean, but MCU what do? that dont understand it.
Custom rom? yes if possible but for me if work fine i do downgrade, somethime the ROM downgrade its better than
upper version.

kalamot1962 said:
No problem for support its only not important chance, for MCU i don't know where i can find upgrade.
but a bit question, ROM Custom or Not i know what mean, but MCU what do? that dont understand it.
Custom rom? yes if possible but for me if work fine i do downgrade, somethime the ROM downgrade its better than
upper version.
Click to expand...
Click to collapse
MCU: This is the controller for your main unit where the SOC is mounted on. You need to stay on STM*** what is mentioned in the system settings. May be there is a newer one, but to be honest... Please ask in the related threads. We don´t need tons of threads about one and the same units.
Firmware: This is the Android and customer software which is installed on your unit. Please read the related threads...

CAN bus question

Is there a way to modify CAN bus module? My car’s clock used to work with OEM HU but after switching to Android the clock stopped working, is there a way to modify CAN bus functionality so i can get it to display the clock from HU to car’s Clock area.

It might help to name the exact head unit, the exact car model, and the brand of the CAN.

headunit is: Joying - JY-HQ148N4GN
Canbus Type is LZ(HZ) - LZ2012
MH: 20200819
For Spirior+AMP
HW: V3 - SW: V4
car is Honda Accord CU2 8th Gen/ Acura TsX / Honda Spirior 2009
this is where normally the clock appears. The headunit gives information like Volume and Current mode but not giving clock on this screen.
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Without seeing the wiring schematics, I would first check the power cable to the radio. Get a multimeter and check that it has power.
You haven't explained if the clock ever worked whilst you have your new radio installed or not.
If it used to work with your new radio, what did you change in the timesleading up to the clock not working?
If the clock never worked, what makes you think it is the CAN causing the lack of power? CAN usually runs command. I would have thought that the clock - if it is only a clock - only needs a 12 v power and ground and that it was otherwise self sufficient.
CAn you enlighten us a little more about the clock?

The clock was powered by the OEM HU.
I bought the Prelingcar Android (in the photo attached above) HU that came with a Can bus, for the first few days i did not connect the Can bus and the clock was not appearing at all, after connecting the Can bus the clock started to appear but after few weeks of use the HU wasn’t working as expected so i returned it. This is how i know that Can bus was powering the clock again.
Now i bought a Joying HU that also comes with Can bus. But it is not displaying the clock. It can show volume info/ mode info on the same screen and if i disconnect the can bus that volume info and mode info disappears so can bus is showing some bit of info there.
i want to know if there is any way to modify the Can bus.

TheDarkKnight1 said:
i want to know if there is any way to modify the Can bus.
Click to expand...
Click to collapse
I don't think so.
It is all embedded code in some chip.
All those Chinese builders/resellers use 5~6 brands of canbus controllers. Some of them are one-directional, some are bidirectional also allowing you to control airco/heating from your module.
You need to know which binary code is used to tranfers the time, and then how to upload it in your chip. I know that some users modify them using an Arduino (if that means something to you.)
But did you ask Joying already? [email protected]
They might have an aswer, or if you have the Honda Can bus specifics, you might send those to them (but I don't think that will help)

Yes i did contact Joying and their answer is that their Engineers don’t have enough time to work on it, don’t think they actually have resources to work on canbus, they simply just buy them from someone in China. This is the customer server you get from Joying after spending $500 lol

TheDarkKnight1 said:
It can show volume info/ mode info on the same screen and if i disconnect the can bus that volume info and mode info disappears so can bus is showing some bit of info there.
Click to expand...
Click to collapse
Okay, so if there is volume data as well as the clock then that changes things most likely.
i want to know if there is any way to modify the Can bus.
Click to expand...
Click to collapse
As the man on the surfboard mentioned, I found some info on reprogramming wiht Ardunio or ESP8622. ESP are much cheaper (just a few US dollar / Euro) than Ardunio and you can use the Ardunio SDK with them. If what I just said does not make sense, then you are better off forgetting about the reprogramming route.
According to http://www.szraise.com/, Hondas , at least more recent versions, are using and RZ model CANbus. No reason to think they would have changed.
Is there an option in your new radio's factory settings to change to an RZ style CAN > Honda > and then try each model option near your car's era until you get functionality.
The factory setting option name might be "Car Model" or something similar.
Maybe take some screen shots of your Factory Settings if you can't find the setting to change the CAN. If you can find the CAN Setting option, take screen shots of that and let's see if we can't get you going again.
Edit:
I just saw that your CAN is an LZ. Was the first CAN also an LZ? Is it the correct CAN?
Maybe try the LZ model in the factory settings first. Maybe my assumption that older Honda's used RZ like more current Honda's do.

ludditefornow said:
Okay, so if there is volume data as well as the clock then that changes things most likely.
As the man on the surfboard mentioned, I found some info on reprogramming wiht Ardunio or ESP8622. ESP are much cheaper (just a few US dollar / Euro) than Ardunio and you can use the Ardunio SDK with them. If what I just said does not make sense, then you are better off forgetting about the reprogramming route.
According to http://www.szraise.com/, Hondas , at least more recent versions, are using and RZ model CANbus. No reason to think they would have changed.
Is there an option in your new radio's factory settings to change to an RZ style CAN > Honda > and then try each model option near your car's era until you get functionality.
The factory setting option name might be "Car Model" or something similar.
Maybe take some screen shots of your Factory Settings if you can't find the setting to change the CAN. If you can find the CAN Setting option, take screen shots of that and let's see if we can't get you going again.
Edit:
I just saw that your CAN is an LZ. Was the first CAN also an LZ? Is it the correct CAN?
Maybe try the LZ model in the factory settings first. Maybe my assumption that older Honda's used RZ like more current Honda's do.
Click to expand...
Click to collapse
i did try all in RZC can but nothing displayed the clock.
The previous one from Penlingcar was Simple Soft canbus .
in LZ there is only one model and that is what im using and told by joying to use it.
it does support steering wheel control, factory amp, reverse sensor info and door info though

TheDarkKnight1 said:
it does support steering wheel control, factory amp, reverse sensor info and door info though
Click to expand...
Click to collapse
Then I would be checking power to the clock and the connector personally. Occam's razor and all.

The headunit powers the whole screen and displays information there including clock. when I selected RZC, it turned off the screen completely. I don’t think its the power or connector. It is the Can bus not conveying clock information to that screen.

all the best with it then.

TheDarkKnight1 said:
The headunit powers the whole screen and displays information there including clock. when I selected RZC, it turned off the screen completely. I don’t think its the power or connector. It is the Can bus not conveying clock information to that screen.
Click to expand...
Click to collapse
My friend solved this by using Honda CR-V on the canbus setting

I think the canbus is made to work on a variety of cars. I just ordered a Teyes cc3 for my 2015 civic and they sent me a canbus decoder for a 2015 CRV. I was comparing the wiring for the CRV and for my Civic and they are different. You may have the same issue and maybe some cables are in the wrong location.

Hi friends I bought a car radio T72 and I would like to set up a canbus for my car I have a Kia Sportage 2015 you can advise. Thank you.

TheDarkKnight1 said:
headunit is: Joying - JY-HQ148N4GN
Canbus Type is LZ(HZ) - LZ2012
MH: 20200819
For Spirior+AMP
HW: V3 - SW: V4
car is Honda Accord CU2 8th Gen/ Acura TsX / Honda Spirior 2009
this is where normally the clock appears. The headunit gives information like Volume and Current mode but not giving clock on this screen.
View attachment 5238387
Click to expand...
Click to collapse
does the climate control come on the android screen?

Did you reboot the unit after changing Canbus type? At least I had a similar problem with my Mazda 3, had to selected a different one. Only got it working with a reboot and a power off

I tried various CANBUS settings and the display did not show any function that I could control via the unit. I have Isudar T72 6/128 Gb unit.

In an Accord 7th, temperature is not shown on dash but in Android screen. It seems a CANBUS message is missing from radio to dash. Perhaps dash sends a query or not but it is clear radio doesn't sends nor responds. For a Civic 8th, somebody has shown in Youtube how to convert temperature from analog and sending by CANBUS using an little Arduino. In fact, he takes only CANH, I think to remeber. But I think this is too complicate, not complete and I don't think conversion must be necessarily linear. The best solution is send a CANBUS message from Android radio to dash. In most radio device, 8 pin connector on the back has TXD and RXD and CANBUS layer 0 (physical layer) is accessed through A/C button block card (Accord 7th, i.e.) or an external CANBUS box. However, a message is missing. I wish to do it intervening TXD/RXD and also giving access to Torque at the same time. But it is necessary to use two serial adapter to do a passthough on both senses, and a third one to connect Torque, with an Arduino as core gateway or a custom Android App in the radio. The ideal solution requires to get access to Android internal resources. But I haven't info.

I continue. In Accord 7th, CANBUS line is TTL (0 V and 4.4 V) and connection to MICU is done through pin 14 of 16 pins green connector (Accord 7th with two thermostat). In Accord 8th, I have read pins CANH and CANL are in 24 pins connector but I haven't paid more attention because mine is a 7th one. I suppose TTL line of Accord 7th works as P2P (peer to peer) but probably 8th one, having CANH and CANL, permits to add more nodes, as long as MICU or ECU not to have intrusion prevention (I don't know).