Database Users

HD2 Widcomm bluetooth stack and AUDI's hands-free pairing

Hello everybody!
I been always having difficulties pairing HTC devices with my AUDI A6 (2005) hand-free using bluetooth (HTC Diamond, HD, and now HD2). The phones will pair but neither contacts or recent calls would appear in my car's display (MMI)
I used to solve the problem using a software extension for the bluetooth stack called JETWARE MOBILE, but HD2 uses WIDCOMM's bluetooth stack instead of Microsoft's one, and JETWARE software won't support it.
I've found a thread about pairing with a volvo hands-free where have been found a solution (changing WIDCOMM registry key "SupportedFeatures" and others)
Anyway it appears to be a volvo's specific solution so it doesn't work for my AUDI (I still can't get any contacts, recent calls, etc. transfered to my car using those)
Does anybody have an idea?
Thanks in advance

Sounds like Audi does not support the handsfree profile HD2 uses. What about using sap (sim access)?
The best way would be to ask your Audi Partner about a solution.
I bet they have an own SAP bluetooth device as i read that Audi uses Handsfree on default and SAP as an option for more money.
It is always a matter of the cars software and not of the HD or HD2.
I own the Mercedes CLC 2008 and i need to buy an extra utility (SAP bluetooth dongle SLR design) for more than 300 €.
Didnt do it till today but i got a new job and def. will buy it when i get the first money.
With SAP it will definately work - also confiremd by several forums i found via google.
BTW: The brother of my wife has a new Volvo V50 and he cant pair his Nokia phone with the cars system but my old HD as my new HD2 too can pair without any problem. I can shuffle through my contacts where he got the same issue as u - but with his nokia phone.

I'm not sure if you've updated the MMI software in your Audi. I had a older software version in my 05 A6 there are 2 disks that will get you to the latest version. I have flawless phone access now. It's like a ROM upgrade for the car.
You can read more about it at www.audiworld.com and check the C6 forum.

rsacipher said:
I'm not sure if you've updated the MMI software in your Audi. I had a older software version in my 05 A6 there are 2 disks that will get you to the latest version. I have flawless phone access now. It's like a ROM upgrade for the car.
You can read more about it at www.audiworld.com and check the C6 forum.
Click to expand...
Click to collapse
I don't really think I've got any MMI updates. I don't even know what version I've got...
I'll ask my dealer to find out.
Thanks

pitaXDA said:
I don't really think I've got any MMI updates. I don't even know what version I've got...
I'll ask my dealer to find out.
Thanks
Click to expand...
Click to collapse
I doubt your dealer will fix it for you unless you are still in warranty and you are having an issue with it.
My dealer didn't want to touch it because like one of these phones if you mess up the upgrade you can brick it.
If you want to take a picture of the SW version and post it or send it to me I can tell you what you have.
Are you in the US?

I forgot to mention if you fry the MMI it is about $2,000 to fix. I was able to get the lastest software installed in about 2 hours.

rsacipher said:
I doubt your dealer will fix it for you unless you are still in warranty and you are having an issue with it.
My dealer didn't want to touch it because like one of these phones if you mess up the upgrade you can brick it.
If you want to take a picture of the SW version and post it or send it to me I can tell you what you have.
Are you in the US?
Click to expand...
Click to collapse
I'm from Spain, little far away from US...
When I took my car to its last service (55.000 miles) they told me they were supposed to apply a software update (I was in a hurry so I told them to came back later... 8 months ago...).
May be that update will also apply to the MMI?
Anyway I'll take the picture and show you the SW version.
Thanks

pitaXDA said:
I'm from Spain, little far away from US...
When I took my car to its last service (55.000 miles) they told me they were supposed to apply a software update (I was in a hurry so I told them to came back later... 8 months ago...).
May be that update will also apply to the MMI?
Anyway I'll take the picture and show you the SW version.
Thanks
Click to expand...
Click to collapse
It's hard to say what they wanted to update, it could have been the ECU or MMI. I found that since I had an early model 05 my software was really out of date. Once I updated it the phonebook and connection worked so much better.

Audi usually supply the latest firmware as part of the navigation disk updates (they auto update when you first put them in).. this is the case for the older RNS-E's and probably the case for MMI too..

rsacipher said:
I doubt your dealer will fix it for you unless you are still in warranty and you are having an issue with it.
My dealer didn't want to touch it because like one of these phones if you mess up the upgrade you can brick it.
If you want to take a picture of the SW version and post it or send it to me I can tell you what you have.
Are you in the US?
Click to expand...
Click to collapse
Hello again
Here I'm posting the pictures of my MMI. It's my first time uploading images so I hope it works.
Thanks again

khughes said:
Audi usually supply the latest firmware as part of the navigation disk updates (they auto update when you first put them in).. this is the case for the older RNS-E's and probably the case for MMI too..
Click to expand...
Click to collapse
May be... but I don't have navigation in my MMI. I actually have the MMI Plus but the navigation module was too much for the value (Tomtom gives me the same except MMI integration for less than 1/10 of the price)
Thanks anyway

dameon12 said:
I own the Mercedes CLC 2008 and i need to buy an extra utility (SAP bluetooth dongle SLR design) for more than 300 €.
With SAP it will definately work - also confiremd by several forums i found via google.
Click to expand...
Click to collapse
apologies to OP, this is slightly off topic...
Hi Dameon12,
I think this works only with the V3 SAP Mercedes module, and this works only with the newer MB audio units.
I have a 2006 Mercedes with Comand and the V2 SAP module, but no success as yet pairing with the HD2 - but I'm open to suggestions!
Thanks,
Eddie

pitaXDA said:
Hello again
Here I'm posting the pictures of my MMI. It's my first time uploading images so I hope it works.
Thanks again
Click to expand...
Click to collapse
Hello rsacipher
Could you please tell me if those pictures were what you ask me to take?
If I get out the software version to search for I might give it a try...
Thanks

Doubts in ROM of Malaysz

Hi,
i install Rom of Malaysz of 11 - 12-2015 and i have some stupid doubts ....sorry i am newer on this.
1 - When i remove ACC signal the bluetooth pairing goes down and when i turn it on again the bluetooth pairing still down. Need go to bluetooth application and do the pairing manually......not good idea....I have a Samsung S4 and my equipment is a Car DVD to Ford Focus with rk3188 and android 4.4.4.
2 - Can anybody explain me how to works the installed application head Unit.. That just have two line and says it was ON but i dont know how it works .....sounds like it was good but i dont see nothing yet
3 - In my connections i dont have output to subwoofer. Anybody knows how to fix this?
4 - In my canbus cnnected to Ford Focus when i turn the car off all goes off except the engine. Any guy knows how to fix this?
5 - Anybody knows a good application to read with bluetooth SMS and Music from mobile phone.
Sorry to bother you. I dont want send the car dvd to the waste
Thanks in advance
Francisco

kiko4949 said:
Hi,
i install Rom of Malaysz of 11 - 12-2015 and i have some stupid doubts ....sorry i am newer on this.
1 - When i remove ACC signal the bluetooth pairing goes down and when i turn it on again the bluetooth pairing still down. Need go to bluetooth application and do the pairing manually......not good idea....I have a Samsung S4 and my equipment is a Car DVD to Ford Focus with rk3188 and android 4.4.4.
Click to expand...
Click to collapse
Do you just need to "reconnect" the device or do you need to "pair" it again?
No idea about your other questions, some of them I don't understand (sorry).
You can also try the rom by booroondook which is the one I am using. Working very well for me.
http://forum.xda-developers.com/android-auto/mtcb-software-development/rom-fuse-support-t3274272

carbonad said:
Do you just need to "reconnect" the device or do you need to "pair" it again?
No idea about your other questions, some of them I don't understand (sorry).
You can also try the rom by booroondook which is the one I am using. Working very well for me.
http://forum.xda-developers.com/android-auto/mtcb-software-development/rom-fuse-support-t3274272
Click to expand...
Click to collapse
Hi,
thanks by your reply.
I need reconnect it again.
I try that image also but happens the same.

Android 9 Screen : Bluetooth and Android system locked !

Hello,
I need some help for my android screen I bought about one month ago, I'm fighting with it to make Bluetooth and sound working...
Can somebody tell me how to activate Bluetooth as it shows not activated even after many factory reset...
And if possible how to change the firmware because not only Bluetooth but all android system seems to be locked...
Below some photos..
By the way, I have also an issue with USB AUX sound : there is 2 seconds of lag and I don't know how to make it works normally.
Thanks for the help

LauriersRoses said:
Hello,
I need some help for my android screen I bought about one month ago, I'm fighting with it to make Bluetooth and sound working...
Can somebody tell me how to activate Bluetooth as it shows not activated even after many factory reset...
And if possible how to change the firmware because not only Bluetooth but all android system seems to be locked...
Below some photos..
By the way, I have also an issue with USB AUX sound : there is 2 seconds of lag and I don't know how to make it works normally.
Thanks for the help
Click to expand...
Click to collapse
If you bought this new I think the best thing you can do is contact the seller and ask them to replace or refund your money.
I don't think your problem will go away if you have reset it many times already.
If you flash it with a different rom it will invalidate your warranty.
Sent from my VOG-L29 using Tapatalk

Thanks for your answer but it's from AliExpress, in China so impossible to deal with the seller. I don't think he will refund me or send me new one but I'm trying to open a dispute and I'll see.
But I think I will keep the screen and I really need to change the firmware. If someone just can tell me if it's possible...

As expected, AliExpress asked me to return the screen to the seller with my money...
But I won't lose more money again...so can somebody tell me if it's possible to change the firmware or unlock Android system please ?
Thanks

The "not activated" message does appear when no phone is connected, its just wrong translated, it should say "not connected".
Bluetooth can not be enabled for all devices on this units, it`s only programmed for the default KswBT App.
You have a BMW Snapdragon 625 Headunit with rather old 2.4.5 Software version, i recommend you to check out the F30 Forums, where you will find the latest 3.8.0 Version which has also global Idrive support
Kri

Ts18 (sinosmart head unit) firmware and Android Auto help.

I have just purchased for my Mazda 3 2014 base model a Sino Smart t18 Android head unit. It took a lot of wire runs to get all my buttons on my steering wheel to work and my aux cable to work but I have everything working now. However I cannot get Android Auto to work. I'm connected via cable I go to T-Link it goes through the whole connection process then the app closes and I disconnect. Also in calls there is a literal half second to two second delay between me saying something and the other person hearing something. I believe that to be because the dialer and phone app is an ancient one. Before I upgrade via the Sino Smart firmware assuming that they even have a newer version for it I'd like to know a few things. Are there any fixes for the issues I have? Is there generic firmware I could use and would that be better? I've backed up the APKs and the settings on a flash drive and I'm going to get a firmware from Sino Smart probably today. So I'm not too concerned about reflashing it if such a firmware exists. Here is the relevant links and pictures https://m.aliexpress.com/item/3256801101474736.html?browser_id=72dbac67959e473f86942b305e5c0eff&aff_trace_key=6c41050821be49718de2504f98805203-1662686844295-00677-UneMJZVf&aff_platform=msite&m_page_id=0011831fdd3c4c1d26c057b1ad56416c1c5e891039&gclid=&[email protected][email protected]!12000028949398123!sea&curPageLogUid=POsYIGiN6GMX&algo_pvid=9f563e5a-cc76-4caf-a8d7-20b80d9e9ed2
Here is a google drive with the dump from the unit
Ts18 Sinosmart dump - Google Drive
drive.google.com
The firmware that they gave me was for a TS-10 and I'm not sure that's going to be compatible with what I have. Does anybody know?

Also USB DAC, can I use that or no?

Hello. We have the same hardware as you. TS18 8581A (TopWay) 4GB+64GB
AK7604
QN8035
Android 11 (Possibly Fake).
Fake Device Test application does not work.
Android Auto Exits the App when the connection is made. But it continues to work immediately after re-entering the application.
I am not satisfied with the Bluetooth Phone call either. I hope there is a solution. I've been watching your thread. Do you have an external microphone? I think it might be a problem with the built-in microphone.
By the way, what does a USB DAC do? (Translate Google)

These units are garbage.

iskenderr said:
Hello. We have the same hardware as you. TS18 8581A (TopWay) 4GB+64GB
AK7604
QN8035
Android 11 (Possibly Fake).
Fake Device Test application does not work.
Android Auto Exits the App when the connection is made. But it continues to work immediately after re-entering the application.
I am not satisfied with the Bluetooth Phone call either. I hope there is a solution. I've been watching your thread. Do you have an external microphone? I think it might be a problem with the built-in microphone.
By the way, what does a USB DAC do? (Translate Google)
Click to expand...
Click to collapse
A USB dac is a way to get digital audio out from the head unit. This way it sounds a lot better. I'm running my own external amplifier. Yeah mine's actually legit and lets me run that fake test stuff, I suspect you're running Android 10 if they're stopping you from checking. That's kind of why I want to see if there's firmware out there for like there is for the TS-10s. As for an external microphone I'm using this Sujeetec Pro Lavalier Microphone... https://www.amazon.com/dp/B08Z3LV1FG?ref=ppx_pop_mob_ap_share

marchnz said:
These units are garbage.
Click to expand...
Click to collapse
That may be the case but for $400 or less there's just not much out there for my car. If I had the Bose system then I would have been fine but the non Bose there's only just now coming on to the market other decent options. However all of them are basically just variations of this unit. I know there's a ton of firmware out there for the TS-10s so I'm just wondering if there's one for the TS-18s

FriedTM said:
USB dac, dijital sesi ana üniteden çıkarmanın bir yoludur. Bu şekilde kulağa çok daha iyi geliyor. Kendi harici amplifikatörümü çalıştırıyorum. Evet, benimki aslında yasal ve bu sahte test şeylerini çalıştırmama izin veriyor, kontrol etmenizi engelliyorlarsa Android 10 çalıştırdığınızdan şüpheleniyorum. Bu yüzden TS-10'larda olduğu gibi orada bir ürün yazılımı olup olmadığını görmek istiyorum. Harici mikrofona gelince, bu Sujeetec Pro Yaka Mikrofonunu kullanıyorum... https://www.amazon.com/dp/B08Z3LV1FG?ref=ppx_pop_mob_ap_share
Click to expand...
Click to collapse
HU'nun arkasında harici bir amplifikatör çıkışı vardır. Sağ ön sol ve subwoofer için. Sanırım arka sol ve sağ çıkışı da var. Ama bir soket kablom yok (C3-C4 pin). (Google Çeviri)

iskenderr said:
HU'nun arkasında harici bir amplifikatör çıkışı vardır. Sağ ön sol ve subwoofer için. Sanırım arka sol ve sağ çıkışı da var. Ama bir soket kablom yok (C3-C4 pin). (Google Çeviri)
Click to expand...
Click to collapse
This is true but the output levels are only 1.5 volts and the sample rate and audio quality is not amazing. A usb dac will bring better audio than the inbuilt chip as well as provide higher voltage. Also these do not have rear output so you have to use a line level converter which sucks because mine pops and crackles at above 70% volume.

All right I got some codes for this unit. Thanks to Vista2611
Factory - 123456
developer mode - 7890(**). (**) is your current time in military time. example ..if u try it at 3.00pm just key in 789015. Or if it's 3am it's 789003

FriedTM said:
All right I got some codes for this unit. Thanks to Vista2611
Factory - 123456
developer mode - 7890(**). (**) is your current time in military time. example ..if u try it at 3.00pm just key in 789015. Or if it's 3am it's 789003
Click to expand...
Click to collapse
Hello Fried, Hi All
I have TS18 too not exactly the same I think... For tl link can you give the version of tl link?
For the call problem, I don’t have good new... I have exactly the same issue...
For detail (#my story) I bought this unit 6 month ago... everything works correctly except call issue... I exchange with the vendor since the beginning to work around… He made me lot of this update reset etc…. Nothing works… one time after reset I lose some functions (TLink, button on the screen of the unit… he give me new version of tlink (1.8.9)) … brief after 6 months nothings works to solve the call issue. So the vendor send me a new mainboard. New version of Tlink (nice!!) but the call issue is exactly the same….
Now I bored, I will use it like that I think. In addition, I think this problem is due to the design of the board…
Ha, for Tlink at the beginning it was in version 1.6.9. It work pretty good to connect etc. after the big reset he give me version 1.8.9., in this version I have to execute two time the connection to the screen android auto…
Now with the new version it seem work correctly, I have to do some test. I have installed the board just this weekend… idem for the number of version
PS IF YOU FIND A WAY TO SOLVE call issue, PLEASE share it…

I bought Simcard + microphone harness from Aliexpress. They stated that my voice sounded good when calling directly from HU with a sim card. They also stated that their own voice echoed. I think in this case there may be a problem with the Bluetooth interface. I ordered an external microphone. I'm going to try how the sound will be with the external microphone. I installed a macrodroid drawer on the HU device for speed dialing, and I was satisfied as a quick search and a mapped screen split. I'll be glad when the volume down problem is solved.
By the way, does anyone know the steps to add eSim?
https://tr.aliexpress.com/item/1005003193847464.html?spm=a2g0o.order_list.0.0.ba473d126wka2q&gatewayAdapt=glo2tur

I haven't solved the problem but I have opened it up and discovered that it may be TS10 firmware compatible. I've also noticed that these boards are standardized so you may be able to just buy a standalone board like this one that is compatible with TS-10 which is a much more mature system
US $36.09 | TOPWAY TS7 T3L TS18 T5 TS10 T507 Motherboard PCB PCBA Main Board Built in Android
https://a.aliexpress.com/_mrQ34oy
Edit: I confirmed that they are compatible. I'm just going to the TS-10. Wash my hands of this problem.

https://en.proauto.co.il/zeta-ts18
Found this probably going to give it a try

FriedTM said:
https://en.proauto.co.il/zeta-ts18
Found this probably going to give it a try
Click to expand...
Click to collapse
I will try if I have enough time…
However, to be clear. I am pretty sure the problem is not on the Bluetooth. I have tried to runs an app like WhatsApp directly on the unit. The unit was connected by wifi on the house. And I observed exactly the same delay… In addition, to complete the vendor send me an application to update some parameter in the Bluetooth configuration (gocsdk) it doesn’t change anything n delay…

I installed this link from the manufacturer but I would not recommend. It is set to the wrong display resolution (1280 by 480) and I cant change it because it I cant press half the settings screen as it is out of view. Goin to try the other software next. Also this one from the manufacture seems to state it is android 12 and I am 90% sure it is not. very sketchy.
Edit: Do not do any of these installations without a backup. Otherwise you may mess up your machine. You need to back up your APKs and all your settings they're going to be in the factory settings I believe I'm going to make an instructional once I confirmed this worked

So you succed to install? And delay on call is the fixed?
For information during the six months of exchange with vendor, he maid me several update. on time he send a new system update like this one... And result for delay in call was the same...
I am not sure to understand if you avec succed to install? If you wan't I can share the latest version that he send me before send me back a new main board...

e-xenon said:
So you succed to install? And delay on call is the fixed?
For information during the six months of exchange with vendor, he maid me several update. on time he send a new system update like this one... And result for delay in call was the same...
I am not sure to understand if you avec succed to install? If you wan't I can share the latest version that he send me before send me back a new main board...
Click to expand...
Click to collapse
I did eventually get the install to work and it helped but its caused a bunch of other problems with audio quality and strangely enough google maps wont open. The delay went from 1-2 seconds to about .5 of a second call delay :/ these ts-18s are just ts-10s with a bunch of cost savings. Just trash, I am jumping ship and you should too. Just buy a ts-10 from the link I gave you and it will be a drop in replacement for the ts-18 you have. Also yeah post the update maybe someone else will find use for it The big issue with the install and what took me so long was that the dpi was set to 240 when it needed to be set to 140. This made the whole experience a pain because half of the options in the settings menu where unreachable. I had to enable engineering mode and go to the built in abd app (you can connect your laptop and do this remotely as well) and type in "adb shell wm density 140". here is a Link to get you started.

If ur Microphone dont work well in TS18 u should:
Turn Off Listening in Voice Assistent Google.
This work for me and now i can Call with no problem

Hi
I have ts18 headunit and I did factory reset and I lost all my apps someone have backup or someting for I can have back my apps. And now I can't use tlink so I don't have android auto anymore. If I download tlink apk and install it I can't activate. I find other way to use android auto name is android headunit reloader it's working but is complicate to start like always need to go to my phone settings and start headunit server after this working fine but I don't want do this always when I want use android auto. Someone know something better apk for android auto?

Fishme92 said:
Hi
I have ts18 headunit and I did factory reset and I lost all my apps someone have backup or someting for I can have back my apps. And now I can't use tlink so I don't have android auto anymore. If I download tlink apk and install it I can't activate. I find other way to use android auto name is android headunit reloader it's working but is complicate to start like always need to go to my phone settings and start headunit server after this working fine but I don't want do this always when I want use android auto. Someone know something better apk for android auto?
Click to expand...
Click to collapse
Hi! I have exactly the same problem, how did you fix it? Is there any way to install the original app to connect your phone?

Trying to identify a UIS8581 unit

Is anyone able to help me identify what unit this is? Its meant to be a higher end unit but finding it really sluggish and also looking at some of the reports its using > 6GB of ram OOB out of 8GB (Not sure how the 2GB unit would have worked) .
Sometimes when turning it back on from standby when playing music etc its really jumpy as its its doing something in the background. Anyone got any recommendations on apps to show what using up all the CPU?
It appears to be a UIS8581 based unit, I have run the HWGetinfo tool on it but its reporting its not a FYT unit.

Post Android system information, including MCU version

The version is retuned as "ZLH_AD_OS_1.24" and the MCU "ZLH_QXLA20830A_Q5H0_8581_13"

Rob_Quads said:
The version is retuned as "ZLH_AD_OS_1.24" and the MCU "ZLH_QXLA20830A_Q5H0_8581_13"
Click to expand...
Click to collapse
This is a completely known unit in here. Try search yourself in this forum for ZLA_ you won´t find anything.

Bit harsh - I have been search but how am I meant to know to search for ZLA not ZLH? Also, searching for "ZLA_" returns a total of 1 hit, a google search for `XDA developers "ZLA_"` also returns just a couple hits not in this forum?

I'm also with the same thing.

Rob_Quads said:
Bit harsh - I have been search but how am I meant to know to search for ZLA not ZLH? Also, searching for "ZLA_" returns a total of 1 hit, a google search for `XDA developers "ZLA_"` also returns just a couple hits not in this forum?
Click to expand...
Click to collapse
ZLA was a typo... sorry.
My posting was not meant to be harsh, but this unit is really completely unknown on XDA.

Yeah that looks like the BMW equivalent to mine with a slightly different CPU
Bhold89 said:
I'm also with the same thing.
Click to expand...
Click to collapse

Talking with the seller, mine was sold by COIKA.
It seems that it follows some patterns that are very similar to other HU's, you just need to make the following to update for example, the boot logo:
Folder structure:
- HUTUpdate
- OS
- bootanimation.zip
- logo.png
- upgrade.en (empty file)
- upgrade.system (empty file)
So, if you find other examples of HU types that are Android-based, this may work.
To upgrade the MCU is
- HUTUpdate
- mcu
- upgrade.mcu
- BMW_8581.bin
I was trying to make backups with other tools, but no success yet.

BMW_OS_8581_1920_720_1.86.zip
drive.google.com
This worked for me as an update, but I have a BMW. Hope this helps!
Just unzip the HUTUpdate to a blank USB

simonb123 said:
BMW_OS_8581_1920_720_1.86.zip
drive.google.com
This worked for me as an update, but I have a BMW. Hope this helps!
Just unzip the HUTUpdate to a blank USB
Click to expand...
Click to collapse
Which HU do you have?

I have also an UIS8581 Unit von Coika. I have software version ZLH_AD_OS_1.86, and MCU LZH_qxha20830A_Q3H0_8581...
I have also some problems... the bluetooth does only work as a headset. you cant switch it on and use it as a normal conection for apps.
Once you switch to original system and then back, all apps are closed( spoitify etc) you need to restart them...
also my sim does not work at all, cause there is no APN setting in the system. once i try to enter it it says user is not able to change settings...
all in all the system is nor really well programmed and has lot of bugs.
If there is anyone who can help with get all the normal functions back pls contact me?
Best regards
Thomas

Bhold89 said:
Which HU do you have?
Click to expand...
Click to collapse
MTK8581a 8/128 for BMW

Tom1386 said:
I have also an UIS8581 Unit von Coika. I have software version ZLH_AD_OS_1.86, and MCU LZH_qxha20830A_Q3H0_8581...
I have also some problems... the bluetooth does only work as a headset. you cant switch it on and use it as a normal conection for apps.
Once you switch to original system and then back, all apps are closed( spoitify etc) you need to restart them...
also my sim does not work at all, cause there is no APN setting in the system. once i try to enter it it says user is not able to change settings...
all in all the system is nor really well programmed and has lot of bugs.
If there is anyone who can help with get all the normal functions back pls contact me?
Best regards
Thomas
Click to expand...
Click to collapse
Hi i have the same unit on my audi q3 with the same firmware 1.86, also i have problem with bluetooth but i want aks you if you turn off the original bluetooth of your car ? Do you use zlink for carplay/android auto? Thanks

Mikdiba86 said:
Hi i have the same unit on my audi q3 with the same firmware 1.86, also i have problem with bluetooth but i want aks you if you turn off the original bluetooth of your car ? Do you use zlink for carplay/android auto? Thanks
Click to expand...
Click to collapse
I use my phone via original Bluetooth on the car. I don't use zlink anymore. As I have the headunit online it makes it easier to use gmaps etc directly.
Do you have a SIM card installed? Does it work? My one does not connect as there is no apn and I cannot set new one. Did you bought it from coika?

Tom1386 said:
I use my phone via original Bluetooth on the car. I don't use zlink anymore. As I have the headunit online it makes it easier to use gmaps etc directly.
Do you have a SIM card installed? Does it work? My one does not connect as there is no apn and I cannot set new one. Did you bought it from coika?
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Click to collapse
i use only zlink...because i like the home of carplay..i don't use the sim card ...yes i bought from coika by aliexpress. for me you need disable original bluetooth of car..and use only headunit..one question..but the our unit is mtcd?

I don't know who is the main manufacturer. Coika says they are the own manufacturers. But don't belieb them. Struggling with the service people since days... Apps are closing after you switch to car system... bluetooth is only working with mobile phone...no obd device etc... SIM card is not working...but they keep me waiting

Similar unit here (Mercedes version):
Version: ZLH_BZ_OS_1.80
MCU: ZLH_BZL221030A_8581_13
Android version 12 (fake - it's 10 - see below)
More info in attached photos.
The 8888 code gets you into factory settings, as in this thread: https://forum.xda-developers.com/t/...-not-fyt-based-read-first-post-first.4525675/
I installed the "Fake Device Test" app and it closes after 1 or 2 seconds (possible sabotage by the device?) but I managed to get the OS info by quickly flicking down the screen while videoing it, then playing back in slow motion. This confirmed the Android API level as 29 (ie Android 10). It also seems to confirm the claimed 8GB RAM and 1920x720 screen are correct.
I want to have a poke around with ADB and busybox, but so far haven't been able connect. The unit claims to be rooted.
Wireless Android Auto works, but one minor annoyance is that my phone seems to give up on Android Auto before the unit is ready to connect. A quick toggle of bluetooth and reconnect to the unit once it's ready is necessary. Also, you need to use a cable for AA when the ZLink app on the device is set to HD - wireless AA on HD delivers a pillarboxed display.
And despite all the images on AliExpress showing 5 icons per page in the launcher, I've only got 3 per page. Is this launcher configurable?
I don't know why exactly, but I have a nagging suspicion that the screen might be a lower resolution than reported, I need to see what the kernel/sysfs says. Do these units have a dmesg somewhere? Or could there be a problem caused by the screen being reported as only 7 inches, as I saw in the output of one of the System Info apps I tried? (Screen is actually 10.25 inches.
One thing I really want to do is get a full backup in case of future problems. Is using TWRP possible on these devices? There is a 1.5 GB "update.zip" on the internal storage, I need get a copy and examine it.
Investigations continue, I'll report back. In the meantime, does anyone have any thoughts on the above?

Tom1386 said:
I have also an UIS8581 Unit von Coika. I have software version ZLH_AD_OS_1.86, and MCU LZH_qxha20830A_Q3H0_8581...
I have also some problems... the bluetooth does only work as a headset. you cant switch it on and use it as a normal conection for apps.
Once you switch to original system and then back, all apps are closed( spoitify etc) you need to restart them...
also my sim does not work at all, cause there is no APN setting in the system. once i try to enter it it says user is not able to change settings...
all in all the system is nor really well programmed and has lot of bugs.
If there is anyone who can help with get all the normal functions back pls contact me?
Best regards
Thomas
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I have gooting a new 9" android unit for AUDI. With same seller and issue.
Thinking of making a thread

simonb123 said:
BMW_OS_8581_1920_720_1.86.zip
drive.google.com
This worked for me as an update, but I have a BMW. Hope this helps!
Just unzip the HUTUpdate to a blank USB
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Click to collapse
I have AUDI ill compare because folder structurer is similar