Develop Bugs

(?) Joying/Pumpkin 5.1.1 Android Headunit Netflix Problem

I am trying to find a good head unit for my Scion TC 05, and an android tablet/headunit is perfect for its radio hatch.
I have recently purchased several android head units. The first being a Pyle 480x800 DVD + android headunit, model PLDNAND692. It ran 4.4.4 KitKat, but the screen resolution was too low, dpi made interface look terrible, and DVD drive was not needed. Netflix played fine though. It runs a RK3066, yet a quad core configuration.
I returned the Pyle due to the old software, low res screen, and overall buggyness with DVD drive.
Recently purchased both a Pumpkin and a Joying Headunit from amazon, and both have no problems with Hulu, Youtube, and other streaming video services, but when trying to view Netflix on either, I am met with a Error code 0013. I have tried all possible fixes, including clearing data, uninstall/reinstall, installing an older build, and a factory reset. Please help.

1) go to system->apps
2) force stop
3) clear data and clear cache
4) uninstall
5) reinstall

nixfu said:
1) go to system->apps
2) force stop
3) clear data and clear cache
4) uninstall
5) reinstall
Click to expand...
Click to collapse
Already did that.
Did it again for good measure, same result
Sent from my SM-G935T using Tapatalk

Emailed with joying, and they confirmed that Netflix has a problem with mtcd units with lollipop. I just bought the kit kat version of the radio instead. Much smoother UX, and doesn't have the memory leak problem lollipop is known for. Lollipop looks better, granted, but their kit Kat models are more fleshed out. And way easier to root.
Sent from my SM-G935T using Tapatalk

thachosenone said:
Emailed with joying, and they confirmed that Netflix has a problem with mtcd units with lollipop. I just bought the kit kat version of the radio instead. Much smoother UX, and doesn't have the memory leak problem lollipop is known for. Lollipop looks better, granted, but their kit Kat models are more fleshed out. And way easier to root.
Click to expand...
Click to collapse
I just bought lollipop version, can you root and downgrade to KK?

[email protected] said:
I just bought lollipop version, can you root and downgrade to KK?
Click to expand...
Click to collapse
Don't even need to root. Just flash a compatible 4.4. ROM.
I also have a Lollipop unit (KLD6 2.97, RK3188, 1024*600) downgraded to 4.4 and couldn't be happier.

m00n61 said:
Don't even need to root. Just flash a compatible 4.4. ROM.
I also have a Lollipop unit (KLD6 2.97, RK3188, 1024*600) downgraded to 4.4 and couldn't be happier.
Click to expand...
Click to collapse
Did you get firmware from Joying website?

[email protected] said:
Did you get firmware from Joying website?
Click to expand...
Click to collapse
No, I am using Booroondook's 4.4. ROM - get it from HERE
Installation procedure HERE
I like Booroondook's ROM because it's very close to stock.
If you fancy flashy graphics, get Malaysk's ROM from this thread
Both are rooted, have FUSE, Xposed framework and allow for lots of customizations.

m00n61 said:
No, I am using Booroondook's 4.4. ROM - get it from HERE
Installation procedure HERE
I like Booroondook's ROM because it's very close to stock.
If you fancy flashy graphics, get Malaysk's ROM from this thread
Both are rooted, have FUSE, Xposed framework and allow for lots of customizations.
Click to expand...
Click to collapse
Thanks a lot! Any reason why carjoying say dont update 5.1.1 units with Malaysk rom from XDA? Anyway I guess it doesn't matter if I am downgrading.

[email protected] said:
Thanks a lot! Any reason why carjoying say dont update 5.1.1 units with Malaysk rom from XDA? Anyway I guess it doesn't matter if I am downgrading.
Click to expand...
Click to collapse
Make sure you have a MTCB or MTCC unit.
Joying also produces MTCD units and those are not compatible. Actually they say: If you have Malaysk don't try to upgrade to 5.1 using our ROM image, that is for MTCD units and will not work on yours.
If you do have a MTCD unit check the dedicated section.

m00n61 said:
Make sure you have a MTCB or MTCC unit.
Joying also produces MTCD units and those are not compatible. Actually they say: If you have Malaysk don't try to upgrade to 5.1 using our ROM image, that is for MTCD units and will not work on yours.
If you do have a MTCD unit check the dedicated section.
Click to expand...
Click to collapse
Mine is MTCD

[email protected] said:
Mine is MTCD
Click to expand...
Click to collapse
You can still try @Malaysk MTCD ROM:
http://forum.xda-developers.com/and...lopment/rom-malaysk-roms-mtcd-device-t3385309

m00n61 said:
You can still try @Malaysk MTCD ROM:
http://forum.xda-developers.com/and...lopment/rom-malaysk-roms-mtcd-device-t3385309
Click to expand...
Click to collapse
Thanks, looks like I'll be busy over the weekend then!

So instead of following advise I decided to attempt to root my device with the thinking that I may be able to take a nandroid backup before tinkering with custom firmware. Anyway I followed another thread directions for rooting my particular device using the *#... code through settings factory reset and then kingroot, SuperSU etc etc.
IT WORKED!
I then for no reason opened the kingroot app again and it started its process again by me possibly clicking something and the device rebooted and got stuck on Joying screen bootloop, I couldn't even get back into recovery...for some time.
I know this is way off topic as this is more related to root than this threads topic but there seems to be limited threads on these devices and I thought by chance someone might be able to help.
I have been able to boot to recovery several times and factory reset, install stock firmware, update firmware etc but all seem to install then get stuck on lollipop screen.
Please see attached photo, this is where I'm at.
I'm sure, given that I can boot to recovery I should be able to fix this issue eventually with the right firmware files but I am more curious about the file structures when you download a firmware package.
Some downloads just have .img file and some have two files dupdate.img and dmcu.img.
Can someone explain what these files are and why some downloads only have dupdate.img.
Also if someone has a solution for my issue or a link to another thread that could help please let me know or I guess I'll keep flashing firmware packages until something happens.
Happy new year!
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Sent from my A0001 using XDA-Developers mobile app

I was able to fix my HU with Malaysk method after I had rooted the device and rendered it officially bricked!
https://forum.xda-developers.com/an...lopment/rom-malaysk-roms-mtcd-device-t3385309
Here is a link to my post in another thread.
http://forum.xda-developers.com/showthread.php?p=70353375
Sent from my A0001 using XDA-Developers mobile app

Zlink App

I just backup the Apk Zlink app from my Dasaita Max 6 PX6. Someone need it can download and use
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"lightbox_share": "Share",
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Download here :
Zlink 4.0.37
15.24 MB file on MEGA
mega.nz

thienthanty said:
I just backup the Apk Zlink app from my Dasaita Max 6 PX6. Someone need it can download and use
Download here :
Zip : https://www.dropbox.com/s/tnunrku5uq5iu58/ZLINK-3.5.24.zip?dl=0
Apk :
https://www.dropbox.com/s/9p7q6qf02qff1bv/ZLINK-3.5.24.apk?dl=0
Click to expand...
Click to collapse
Thank you for sharing this. Unfortunately, this did not work for me. I'm getting an "App not installed" at the end of the installation wizard. There could be a couple of things that may be preventing the installation:
My unit has android 8, and the app could be only compatible with 9 and above
The apk is corrupt
I tried with both the apk and the apk from the zip file. I could try to editing the apk to make it seem as an older version. My unit came with ZLINK 2.4 and that works perfectly. The only downside of that version is that it only works with Apple Carplay, no Android Auto...ironic isn't it.
Thanks again,
Daniel

dcortes said:
Thank you for sharing this. Unfortunately, this did not work for me. I'm getting an "App not installed" at the end of the installation wizard. There could be a couple of things that may be preventing the installation:
My unit has android 8, and the app could be only compatible with 9 and above
The apk is corrupt
I tried with both the apk and the apk from the zip file. I could try to editing the apk to make it seem as an older version. My unit came with ZLINK 2.4 and that works perfectly. The only downside of that version is that it only works with Apple Carplay, no Android Auto...ironic isn't it.
Thanks again,
Daniel
Click to expand...
Click to collapse
I have the Android 9 in my unit and I have same problem ("App not installed"), I think it's because the Zlink app is already installed in the system, but I'm not able to delete the old version to install the new one, must be protected in some way.

Thank you so much.
But didn’t installed on my Android 8.1 head unit with Intel SC9853i processor.
Enviado do meu iPhone usando Tapatalk

dcortes said:
Thank you for sharing this. Unfortunately, this did not work for me. I'm getting an "App not installed" at the end of the installation wizard. There could be a couple of things that may be preventing the installation:
My unit has android 8, and the app could be only compatible with 9 and above
The apk is corrupt
I tried with both the apk and the apk from the zip file. I could try to editing the apk to make it seem as an older version. My unit came with ZLINK 2.4 and that works perfectly. The only downside of that version is that it only works with Apple Carplay, no Android Auto...ironic isn't it.
Thanks again,
Daniel
Click to expand...
Click to collapse
qrabosk said:
I have the Android 9 in my unit and I have same problem ("App not installed"), I think it's because the Zlink app is already installed in the system, but I'm not able to delete the old version to install the new one, must be protected in some way.
Click to expand...
Click to collapse
You have to Root your Rom to do
I use the Malaysk Mod Rom v1.3.6 ( with Zlink v3.5.4 )
You have to use Root Explorer to uninstall, then copy my Zlink apk to :
oem \ bundled_persist-app \ zlink-wla-a-hengchangtong-release-v3.3.8_jg
( delete the old apk if still have, dont need install the new apk, just put in the folder )
Then reboot and you have the latest Zlink ver 3.5.24
https://drive.google.com/file/d/1pTZyrl7tehp-14ofWCL_JtLDpsmdFrse/view?usp=sharing

thienthanty said:
You have to Root your Rom to do
I use the Malaysk Mod Rom v1.3.6 ( with Zlink v3.5.4 )
You have to use Root Explorer to uninstall, then copy my Zlink apk to :
oem \ bundled_persist-app \ zlink-wla-a-hengchangtong-release-v3.3.8_jg
( delete the old apk if still have, dont need install the new apk, just put in the folder )
Then reboot and you have the latest Zlink ver 3.5.24
https://www.dropbox.com/s/9p7q6qf02q....5.24.apk?dl=0
Click to expand...
Click to collapse
the link seems not to be working, because it's somehow shortened with ". . ." in the link. Will this apk work with PX5 units on Android 8??

bassembrace said:
the link seems not to be working, because it's somehow shortened with ". . ." in the link. Will this apk work with PX5 units on Android 8??
Click to expand...
Click to collapse
https://www.dropbox.com/s/9p7q6qf02qff1bv/ZLINK-3.5.24.apk?dl=0

Does this work with PX5 Android 8.0 units that doesnt come pre packed with zlink to supporte carplay+android auto?

thienthanty said:
Download here :
Zip : https://www.dropbox.com/s/tnunrku5uq5iu58/ZLINK-3.5.24.zip?dl=0
Apk :
https://www.dropbox.com/s/9p7q6qf02qff1bv/ZLINK-3.5.24.apk?dl=0
Click to expand...
Click to collapse
It seems the files have been deleted from Dropbox. Can you please reupload them?

bassembrace said:
the link seems not to be working, because it's somehow shortened with ". . ." in the link. Will this apk work with PX5 units on Android 8??
Click to expand...
Click to collapse
Pacote-san said:
Does this work with PX5 Android 8.0 units that doesnt come pre packed with zlink to supporte carplay+android auto?
Click to expand...
Click to collapse
reup
https://drive.google.com/file/d/1pTZyrl7tehp-14ofWCL_JtLDpsmdFrse/view?usp=sharing

thienthanty said:
reup
https://drive.google.com/file/d/1pTZyrl7tehp-14ofWCL_JtLDpsmdFrse/view?usp=sharing
Click to expand...
Click to collapse
Already deleted Can you re-up to mega or something?

BluntP6 said:
Already deleted Can you re-up to mega or something?
Click to expand...
Click to collapse
https://mega.nz/#!qIQn2KCB!Zyp3Q70Mkmom-auitR8zzB1efS8e0UvNF53v1BjmfUg

thienthanty said:
I just backup the Apk Zlink app from my Dasaita Max 6 PX6. Someone need it can download and use
Download here :
Apk :
https://drive.google.com/file/d/1pTZyrl7tehp-14ofWCL_JtLDpsmdFrse/view?usp=sharing
Click to expand...
Click to collapse
What is.the difference between this zlink and easyconnection ?
I have px6 dasaita max6 with android 9
I am pure android guy and donot use iphone

Files are deleted. Can you share it in another way？

The mega link thienthanty provided works fine.

Another download link just in case
Thanks for this file!
Sorry not allowed to upload urls just yet

I need ZLink apk to run on my android car head unit for apple car play
Hi, can someone please help me with ZLink apk or app download link so i can use it in my car android head unit runs on andorid 9. I need to use apple car play. Its 2gb ram.
Thanks

amit1111 said:
Hi, can someone please help me with ZLink apk or app download link so i can use it in my car android head unit runs on andorid 9. I need to use apple car play. Its 2gb ram.
Thanks
Click to expand...
Click to collapse
Yeah I can, please see the link below. This is a personal server with all the Data I have on my headunit. You might want to try autoplaybox, its in the dasaita carpay usb dongle folder. I have not tried Zlink yet but I have the APK.
https://lcraudio.stackstorage.com/s/xhFWr96B3GUtVGV

Zlink file needed for carplay
Zlink file needed for apple carplay

not working
Peevb said:
Yeah I can, please see the link below. This is a personal server with all the Data I have on my headunit. You might want to try autoplaybox, its in the dasaita carpay usb dongle folder. I have not tried Zlink yet but I have the APK.
it dosent work. need a different version i guess
Click to expand...
Click to collapse

Help, I screwed up ... PX5

When updating my PX5 from Android 8 to Android 10 of my Mitsubishi Outlander the radio got messed up, the physical buttons stop working, and it gives a version error, where can I get the correct version for this radio? thanks ...
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Seems like you flashed an MCU as well as the ROM and it was the MCU from a different manufacturer, in order to restore it you need to find out which manufacturer your unit is from. Do you know ?

typos1 said:
Seems like you flashed an MCU as well as the ROM and it was the MCU from a different manufacturer, in order to restore it you need to find out which manufacturer your unit is from. Do you know ?
Click to expand...
Click to collapse
hello, unfortunately I don't know the manufacturer, I bought it on Aliexpress, and now the seller is no longer active, and there is no manufacturer reference on the radio.

Take some pics of the sides, back and underneath if the unit - may be able to identify it. Do you remember what the MCU was before ?
EDIT : Hold on, that wallpaper suggest that it might be a KGL unit - upload those photos to confirm. Flashing a KGL MCU may help, but with no mcu.cfg it may be a struggle to restore everything. Having said that the wallpaper will have just come from the ROM you flashed, so probably best open the unit up and get the manufacturer from the motherboard to be certain.

typos1 said:
Take some pics of the sides, back and underneath if the unit - may be able to identify it. Do you remember what the MCU was before ?
EDIT : Hold on, that wallpaper suggest that it might be a KGL unit - upload those photos to confirm. Flashing a KGL MCU may help, but with no mcu.cfg it may be a struggle to restore everything. Having said that the wallpaper will have just come from the ROM you flashed, so probably best open the unit up and get the manufacturer from the motherboard o be certain.
Click to expand...
Click to collapse
Hello typos1 tomorrow I put the photos of the motherboard, thank you very much for your help....

Ok, no probs

typos1 said:
Ok, no probs
Click to expand...
Click to collapse
hello Typos1, I disassembled the unit and took these pictures, will it help to identify? thanks

Ok, see where is says "XRC" ? That means you have an XRC unit, so flash the latest XRC MCU from the link in my signature and let me know if it sorts it.

typos1 said:
Ok, see where is says "XRC" ? That means you have an XRC unit, so flash the latest XRC MCU from the link in my signature and let me know if it sorts it.
Click to expand...
Click to collapse
Ok Type1, morning I will try, if one day you come to Portugal let me know, I want to buy you beer.
thanks

No probs, there may still be some things for you to do after you have flashed the MCU though, so let me know how you get on.

typos1 said:
No probs, there may still be some things for you to do after you have flashed the MCU though, so let me know how you get on.
Click to expand...
Click to collapse
hello typos1 , so far so good, with your help everything went well, over the weekend I’m going to install the unit in the car to test it, because right now it’s connected to a PC power supply, thanks again...

Cool, so everythings working ? I d install a later XRC MCU if I were you though.

typos1 said:
Cool, so everythings working ? I d install a later XRC MCU if I were you though.
Click to expand...
Click to collapse
hello typos1, I detected a problem, damn it, when I turn the physical sound button to the left, the sound decreases is correct, but when I turn to the right to increase the sound it decreases too, do you know what it could be?

why do people keep modifying car radio like that's so risky it would be terrible while your driving and radio suddenly start out of nowhere

Yes, it is because you did not go into factory settings and export your MCU settings before you flashed the MCU, you need to do this always, I understand it is because you did not know what you are doing but that is why you have the problem.
Go into factory settings and try and remap the buttons, but I dont think it works on the volume kob, you can also try changing the knob mode in factory settings. If none of this works you need to find someone with another XRC unit and try flashnig their mcu.cfg.

ineedroot69 said:
why do people keep modifying car radio like that's so risky it would be terrible while your driving and radio suddenly start out of nowhere
Click to expand...
Click to collapse
He did not "modify" it, he flashed a ROM without realising that there was an MCU file with it. As for mods, people have modified these stereos for years - check out all the threads about it - and mnay of these mods are very useful and correct bugs from the factory.

typos1 said:
He did not "modify" it, he flashed a ROM without realising that there was an MCU file with it. As for mods, people have modified these stereos for years - check out all the threads about it - and mnay of these mods are very useful and correct bugs from the factory.
Click to expand...
Click to collapse
yeah im not trying to criticize something im just amaze that people would "flash" not "modify" btw stuff as long as there running android such as car stereo system instead of sticking to stock version

What he flashed was a stock update, so still not a mod.
The factory ROMs are not good, again, for years people on here have modified and improved the facpory ROM, many, including me would never even use the factory ROM at all.

ineedroot69 said:
why do people keep modifying car radio like that's so risky it would be terrible while your driving and radio suddenly start out of nowhere
Click to expand...
Click to collapse
calm, what led me to do the upgrade was the radio brought factory problems, the clock was always incorrect, gps was never in the right place, etc., and the seller never supported me ...

typos1 said:
Yes, it is because you did not go into factory settings and export your MCU settings before you flashed the MCU, you need to do this always, I understand it is because you did not know what you are doing but that is why you have the problem.
Go into factory settings and try and remap the buttons, but I dont think it works on the volume kob, you can also try changing the knob mode in factory settings. If none of this works you need to find someone with another XRC unit and try flashnig their mcu.cfg.
Click to expand...
Click to collapse
Hello typos1, is it possible to downgrade the MCU? there are other versions in this list ...there may be one that can be compatible ?
Yandex
Finds everything
disk.yandex.com

Brick my Dasita PX6 1280x720 MAX10 with wrong Resulution

I thing i have brick my Dasita PX6 1280x720 MAX10 RK3399 with a update with a wrong resolution.
I have try everthing but cant find a IMAGE.img with the right resolution for it.
On the Screen i cant see only colored stripes and i dont know what he will say me.
Is there any way to give him the right resulution back without scren ?

What update(s) were applied - file names.
What steps were taken.
What does your reseller suggest when contacted for support?

Here you can see a Video of the Device now: https://photos.app.goo.gl/819Y9LbwcTSJWf9TA
I have Install the Update from this side the second one: https://www.mic-autoradio.com/updates/
My Resseler on AliExpress doesent react since 2 week on my Questtions.
I think it is only a wrong resolution. But i dont know how i can chance it now.

BMP007 said:
Here you can see a Video of the Device now: https://photos.app.goo.gl/819Y9LbwcTSJWf9TA
I have Install the Update from this side the second one: https://www.mic-autoradio.com/updates/
My Resseler on AliExpress doesent react since 2 week on my Questtions.
I think it is only a wrong resolution. But i dont know how i can chance it now.
Click to expand...
Click to collapse
In your video you show a Dasaita head unit which is an MTCD/E unit, and you used an update file for a different type of head unit
Dasaita - Latest MCU and Updates for Dasita PX6 1280x720 MAX10
For Dasaita PX6 Updates on Dasaita website: https://www.dasaita.com/blogs/news/update-firmware ----- Older versions: Android 10: HA3_rk3399_10.0_ota(20200915)升级包 : https://yadi.sk/d/ylg0cKBTQo4P1Q HA3_rk3399_10.0_ota(20200724)升级包 ...
forum.xda-developers.com

Yes i know, i dont know who has ride me there...
I was a stupid young (46) Boy and have drink to mutch beer ;-)
But now i can only use the Mask Mode to ReInstall it and for that i need the install.IMG file OR ??

I believe your max 10 has a hdmi output on the back? You can use that for another screen to see what you are doing to install the proper update.
People are too quick to update for no reason, and they often get into trouble as a result. NEVER do system updates unless there is a SPECIFIC NEED.

I have try this before but with no input on the TV.
I think this HMDI is only for a Video player.

1- download a firmware for px6 .img
2- install it with usb method (purple usb)
3- download the latest firmware 202101 (update.zip) and put it on a usb stick
4- enter recovery and install it
5- do a wipe and restart
...
if this does not work, the only method is to take the coreboard and repeat the whole procedure on a radio with a resolution of 1024x600

BMP007 said:
I have try this before but with no input on the TV.
I think this HMDI is only for a Video player.
Click to expand...
Click to collapse
It's an output. Not in input. I have used it before for another touchscreen
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"lightbox_stop_slideshow": "Stop slideshow",
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"lightbox_share": "Share",
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"lightbox_new_window": "New window",
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}

I have try it again, but without luck.
The TV goes from NO SIGNAL to a Black Screen.
It looks like the HDMI Out is only a Mirror of the internal Display.

I have now Install a Android 9 Recovery this WAY.
And if i now click 4 time short and 1 times long - 1 short - 1 long the RST Button the Soft-Buttons are flashing.
It looks like i am in the Recovery. But i dont knowwhat i am pushing.
Can anyone give me a Picture of the Andorid 9 Recovery Menu ?
And please a second Picture if you pressed Apply system and MCU Update.That i know what i must push.
EDIT: Found out, that the lights only flashing if i have a update.img on USB OR SD Card in the device.

The recovery menu is the same.
One click to go down to update system or 2 clicks down to update MCU, then a LONG click to select/enter
Make sure you have your sd card or usb in and ready to go

Bob_Sanders said:
The recovery menu is the same.
One click to go down to update system or 2 clicks down to update MCU, then a LONG click to select/enter
Make sure you have your sd card or usb in and ready to go
Click to expand...
Click to collapse
Are you Sure ?
Anyone knows what i Click if the Softbuttons are Flashing ?
If it is right what Bob_Sanders says, it must be the Wipe Data/Factory Reset.

Have it BACK ;-)
The hint is to install the
DMCU.ext for 1280x720 units: View attachment dmcu-1280x720.zip
Found here: https://forum.xda-developers.com/t/...pdates-for-dasita-px6-1280x720-max10.4173669/

Can someony give me a hint what i must make next ?
I have try to install the 8,.1 image.img (thats the only i found).
But it doesend work, if try to install it over the Recovery System (Pic last Post) i only geht /dev/... not exist.
or no directory
I have Flash on the SoC the 8.1 update.img.
But what must i do with the SD-Card ?
EDIT:
I have put the Recovery 10 Img on the SOC.
- Starting without SD-Card doesend work. Under 1 second i get the 10. NAvigation Multimedia" Picture Black Screen without Backlight. Nothing else happents, the Device only consume 0,1 Amp.
- Starting with a blank SD-Card Format in Fat32 is the same like the first point.
- Starting with a SD-Card format with the SD-Card Tool and the Recovery 10 img as SD-Boot works. I came into the Recovery 10 Menu. But i cant install there a update, everytime i get the error that the /dev/ not exists.
- Put an USB Stick with the Recovery on it on the purple USB doesend work. Same like the first point.
Any Ideas ?

I have it running again.
My problem was that I only have one SD card that works. The other ones I used did not show any errors, but do not work in the PX6 for installation/updates.
Only apparently I still have a hardware brig.
The first logo with the 10 comes absolutely clean, but after that the graphics rather reminds me of a Comodore VC20. Even the font in the recovery is not properly displayed as already seen in the pictures above.
Attached are two videos of how it currently looks:
I have now ordered as a first measure times the cable between motherboard and screen new, that should arrive tomorrow. Otherwise, I would only think of the SOM as a source of error OR?

After figuring out the the dmcu.ext is basically a text file and the only thing in it is screen:x x being a number. The number representing a resolution in relation to what MCU and OS. The default of 1280x720 is 12 on all of the dmcu.ext I could download. I read in most people changing it to 18 depending on which MCU you have installed is what i read. I also was not doing a factory reset erase all before I did an install. So I did the factory reset and the dmcu.ext with screen 12. nothing happened. I did it again with 18 nothing. The 3rd factory reset with screen:0 and on all of these I was using MTCE_HA_V3.62 for dmcu.img. When this one rebooted it had a black screen. I plugged a monitor to the hdmi output and I could see through the monitor just fime but I had to touch my head unit screen where I think it should be according to the monitor so I factory reset again with screen:13 in the dmcu.ext and when the head unit rebooted after installing it was the correct resolution..

Good you got it working again.
For the record....
I don't do updates at all anymore. It seems there is more of a risk to damage than any good that can come.

Bob_Sanders said:
Good you got it working again.
For the record....
I don't do updates at all anymore. It seems there is more of a risk to damage than any good that can come.
Click to expand...
Click to collapse
Same here.
If it works to my satisfaction, I have no need to update.

MCU & Android update for dummies (erisin es6963c)

Originally this thread was my stupid questions about how to update android car head unit. As a novice to these things it felt bit complicated but I assure you, it's actually easier than rooting a phone for example. I make simple steps, so people new to this can get the picture and not spam all threads with stupid questions (like we all do lol)
1. Update MCU
First things first, you need to update your head units MCU to most recent version. MCU stands for MicroControllerUnit, and you need to be specific and use ONLY right file for your head unit! (For example my unit is shown in picture, it's MTCD/E machine, it got PX5 coreboard and it's made by Leica semiconductor & electronics company, which is abbreviated as LM; So in this context I would download for example MTCE_LM_v3.67 file.
After downloading, unzip, put dmcu.img to root folder of the usb stick or sd card, stick it on and go to head units Settings > System > Update MCU.
It's really important that you use ONLY right file for your head unit!!!
Here you can find list of MCU files:
XDA - Comprehensive list of MCUs for MTCD/E head units
Yandex - Comprehensive list of MCUs for MTCD/E head units
2. Install new Android version
Newer android version can be referred as ROM or FirmWare (As I see it, FW is MCU and Android OS is ROM but let's not get into debate or complicate when I'm trying to KISS it)
user @marchnz has compiled nice thread on how to update to android 10.
If you don't have SD card on your hand or you are lazy/hesitant/what ever, you can use ModInstaller Pro made by @Hal9k_ It's safe and makes life a breeze!
I recommend updating step by step 6>7>8>9>10 and before proceeding to custom rom, install appropriate stock android version first. I advice to backup important files and do a factory reset before flashing new rom and after install wipe data/ factory reset (ModInstaller Pro does this for you after it's done installing). Also pay attention
Here's a list to stock android files.
Yandex - Stock android versions
It's best to check from factory settings what BT-module you have, before proceeding to upgrade. Make sure to check that your devices BT-module works with the android version you intend to install or you just waste time flashing different versions. And it's completely normal if you dont get it right the first time. I have WQ_BC6/8 BT-module and had to use WQ_BC8 before android 10 and now WQ_BC6 on android 10 (if i remember correctly). If you have MD-725 or SD-968 BT-module you can try using BT codec from earlier Android version. Don't even bother trying to get these modules work on Android 10, not gonna happen. It's better to solder a new BT-module if you really want Android 10.
If SD-968 was working in Android 8, but does not work in Android 9. Solution: replace the module driver /system/bin/sdsdk968 with the old version. Do not forget to set permissions 755 on the file. Same can be tried on MD-725 from Android 6/7 to Android 8, I don't guarantee it will work. Files are out there (and in your machine before making the update).
If you happen to install package with wrong resolution, you can try to fix it using this (yandex).
For different look you can try different launchers from google play or yandex link again.
That's it. Not too complicated. If you want to root your head unit, easiest way is to flash a custom rom that has It done for you already. I really recommend ModInstaller Pro even though it cost a bit. But it saves time and nerves and it's safe to use especially for novice. By doing yourself without knowledge you might end up bricking your device!
For me this new territory of android car head units was like a swampland even though I'm experienced on rooting and flashing android phones but for example adb sideloading is most of the time not even an option when playing with these head units.
I spent hours and days to get into this, but now I can update a head unit and make app installs and settings in under 1 hour.
Remember every unit is different! Not everything works on all devices. Get to know the unit you are playing with, update MCU, after that decide what android version is ok with your device (BT-module) then update (highly recommend ModInstaller Pro)
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Yandex
Finds everything
disk.yandex.com
This is MCU update

This is forums for learing

So got that new MCU and experienced with different ROMs. Got the machine work bit faster but Im still experiencing problems with BT. I had Malaysk Oreo and BT mic sounded underwater, not sure if it was using internal and external mic at the same time. Didn't rule that out when I went trying Hal9k Pie, didn't get any BT connectivity.
Now I'm planning to roll back to Oreo or earlier or ordering RF210 module and taking a shot. I'm just hesitant on both options because rolling back might get that device work slower and in the other hand tinkering the inners of the machine is always a risk. Any recommendations especially on rom side is appreciated. New HU is not an options.

I tried hal9k android 9 and got BT to connect, but hands-free is not working. I have to select WQ_BC8 from factory settings for BT and then it gives CAR-KIT device name in bluetooth. Does anyone have any knowledge about this BT module and can it work in more recent versions of android?

Didn't have much luck getting BT work well on Android 8 & 9 custom roms, didn't even try BT connectivity on stock roms. Don't know if it was just user error or custom roms I tried, but magically in Android 10 BT worked great, both stock and custom rom. Still need to make sure OBD connection works.
If people new to these things need help, please don't hesitate to ask a question! My idea for this thread is a collection of dumb questions so we don't litter official threads meant for other use than FAQ.