yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] roystervi:
[MENTION=4736782]kaween[/MENTION] I just receive the USB OBD 2 today I try hooking it up to the radio but its a no go..all I am getting from the USB OBD sensor is the power light..

here is an pic what my unit looks like..I got the same one or type what you listed.. http://www.ebay.com/itm/291261766235

any idea or is there any setting I have to do on the radio for the radio to see the obd and which usb did you hook your up too I try all 3 usb on my unit, the 3g, the wifi and the front usb. with the car off I plug in the unit the a start the car. I launch torque and in settings I choose obd connections USB..I have a Bluetooth OBD2 also and it work great on my Andrid phone so I know the cam port is working.

thanks in advance
[Android Head-Units] kaween:
Hi.

First thing you should do is connect that thing to a PC and see what kind of usb/serial chip it says it is.

If it is anything else than a "generic prolific", it's already game over I fear.

When you hooked it up to your AN21, did it tell you it "saw a generic prolific 2303" or something similar ? I did NOT have to change any setting or whatever to make it work. After pluggin in, the AN21 automatically even asked me straight away if I wanted to autolaunch Torque whenever "the usb device was connected". Just out of completeness : I've never tried the front USB for this, always used the back .... couldn't tell you if that would make any difference, but I'd not expect it to do so.
[Android Head-Units] roystervi:
when I plug it into the car radio nothing came up :( its a good think it only was $9
[Android Head-Units] tmmcbots:
Installed my an-21u in a new Ford Explorer was working great in my VW passat and the screen brightness was flickering when the head lights were turned on, so I flashed a different mcu and the flickering disappeared but I now have no sound...... Tried going back to original VW mcu and did a factory reset and still no sound!! Please anyone help!
[Android Head-Units] j2gifted:
Ok I did it, and I still have the gray wifi. I believe I changed it correctly. I only made the 4 changes that were in the other post you linked to.

One thing im not sure of is what you meant when you said to add a single new line at the end of the build prop [or something like that]
[Android Head-Units] :
Internal Memory - access denied!

Has anyone had a problem where the internal memory doesn't work properly? I went into ES File Explorer and tried to rename a folder "Sygic" to Sygic2 and it said FAILED. I went to properties and can see R/W so I should be able to rename it. I'm on 2.7.28 no root. I tried to reflash the 2.7.28 firmware over the top of it and didn't help. Tried a factory reset and worked for a bit then after a couple of reboots it stopped working. It was working fine for a while. I haven't installed any apps or anything and it just stopped working.
[Android Head-Units] Nova8316:
Hi,

I have this cable but I have the Huifei HeadUnit.

It works, but not everytime, and I'm experiencing freeze. The serial chip is a FTDI one on mine.

Normally, a pop-up is showing when the USB is connected.
[Android Head-Units] TheSSJ:
Sorry to see that :( As you used the app to modify your build.prop it handled this peculiar thing for you, so you don't have to worry...still, a pity that this solution didn't apply to your problem...:/
[Android Head-Units] 3Shirts:
I have one of these for sale: http://www.ebay.co.uk/itm/Android-d...t-with-GPS-Wifi-3G-DVD-AN-21-U-/231542042965?
[Android Head-Units] roystervi:
No pop up on mines at all when I plug it in. I try plugging it in with the radio off then turn start the car also I unplug it then plug it back in when the car us running. When I look at the obd no light is flashing just the power light is on. I have a Bluetooth obd and its working find so I know nothing is wrong with my cam bus plug or my car computer. Maybe it's not for me lol.
[Android Head-Units] kaween:
As said before : what do you see when you hook it up to a Windows PC ? How is it recognized ? What kind of hardware info code does it show in the device manager under control -> system > device manger > properties -> details -> hardware ID ?
[Android Head-Units] j2gifted:
So am I. I guess I'll just deal with it as is. Its not too bad since I still have an internet connection
[Android Head-Units] cbouissey:
Does anyone have the PIN to do a factory reset on these? Ive looked everywhere and cannot seem to find it.
[Android Head-Units] Skratchuk:
Any of you guys and girls know how to sort out phone contacts from bluetooth in to Alphabetical order as mine are all over the place!

---------- Post added at 12:03 AM ---------- Previous post was at 12:01 AM ----------

7890 it is on the front page as well.
[Android Head-Units] kaween:
The only thing I could find about is found here http://xdaforums.com/showthread.php?p=49294199#post49294199

[MENTION=5179588]j2gifted[/MENTION] : blocking updates didn't help either ?
[Android Head-Units] Skratchuk:
Ah wicked mate I'll give that a try ?
[Android Head-Units] j2gifted:
I havent tried that yet. I took a breather to gather my thoughts. Im gonna give it a try tomorrow.

Im just confused as to what caused this...
[Android Head-Units] skrilla269:
Ouku Identity

I have looked everywhere and even contacted the ebay seller but cannot figure out which unit this is. I'm trying to upgrade the radio's androids version but can't find clear links and instructions on where to begin. This thread is so vast and full of different opinions I don't want to just start trying to upgrade and end up bricking my radio. I attached pictures of the radio and a picture of the system info if someone could please help me figure out what model Ouku radio this is. Again I apologize if there is already something in this thread talking about it I just can't find it :)
[Android Head-Units] TheSSJ:
Hi,

It seems you have the same unit as i do (motorized screen,same button layout, search for xtrons td730A). Your unit is an an21-u headunit. But honestly you are already on a good base software and mcu wise. I have the same versions installed (after a little fight with a wrong mcu ^^ ) and couldn't be happier.

Still wanna upgrade? The phrase 'never touch a running System' should be meant as warning ;) anyways,flash at own risk:

http://xdaforums.com/showpost.php?p=59689614&postcount=6662
[Android Head-Units] Skratchuk:
Im a bit out of touch what is the latest version which is good and can be rooted?
[Android Head-Units] scott_65:
Hey guys I was wondering if somebody could point me in the right direction here. I got a new (to me) truck and have started doing for a radio. I had considered on my old truck fiberglassing in a tablet but I ran across these android head units on eBay. So I started doing some googleing and found a couple of xda threads which brings me here. The OP is a little old, plus the title states unbranded so that presents an identification problem in itself. The eBay units look right, but how do I know? I'm an avid xda'er on my phones but if I ran into issues with this thing and it wasn't a match to what you guys were doing, I would probably just have me a shiny new paperweight.

I've searched a bit and read through the thread but it's hard to tell what info and links still go to the right units. Also, the links that I have found have been to ali. I have heard a bit about it but never used it. Since these are "unbranded", is there a way to identify a matching one on eBay since I know my purchase is protected there?

And lastly: I could have skipped over this and not seen it in the thread, as it's quite lengthy. The eBay units are advertised as supporting steering wheel controls, but I haven't seen it mentioned after root. Is this still possible?
[Android Head-Units] MoonPie2000:
Fellow Radio Newbie

I to have recently bought and installed an 'unbranded' radio and my experience was that you can tell type by specs - cpu and mcu mostly and rear / front controls to distinguish different manufacture groups. The one I bought has much different look from pic in op but has same specs and is defiantly a an-21. I am not sure why you want to root but in my case I thought I wanted root but after receiving my radio and understanding hardware limitations I decided against. In regards to swc it very much depends on auto mostly. In general the an-21 supports analog key1 / key2 swc and special can RX / TX autos. Most cars start analog then convert to digital so you have two options - tap key lines into analog OR get converter unless of course you have a auto with can RX / TX lines.
[Android Head-Units] scott_65:
Thanks. I too have found several different styles that seem to be the same specs. The reason I was after root is mainly for running this torque software. I drive a diesel truck tuned up quite a bit and would like to run this instead of analog gauges. The original thread that linked me to this one stated that root was required for this. The last unit linked a page or two back says it's obd compatible right out of the box, but it's on Ali and I'm a bit nervous about ordering there... But perhaps I'm wrong about it all and there's no need to root?

The main things that I typically use in my vehicle that would be nice to integrate: Gauges, Bluetooth calling, Bluetooth music using Google play, navigation, radio, steering wheel controls. The rest would just be cool eye candy I suppose. The ability to customize colors, menus, etc would be neat. But not at the expense of bricking the unit if root is required and risky to do so

Also, this would be going in a Ford truck. 08 model. I have hooked up a couple of these in the past and used the Pac adapter to do so. I assume that's what would be involved here, I just didn't know if the required software was still in place after rooting and changing things around on the unit
[Android Head-Units] bettuccio:
Help.. ! Root and recovery

hello everyone. I ask for help to some of you experts on the forum. I installed a radio android 4.2.2. " 7 inch. know if there is the possibility to use the root and a recovery that I read in the forum. Notice that there is a din but no keys hardware. Is integrated perfectly in my 2011 citroen c4 . I upload some photos with the specifications made by an application because Chinese products mask the truth. I need custom recovery and root if I make some trouble. I contacted the seller but does not answer. Now I understand that there are Rom and updates. here are the pictures :
[Android Head-Units] kaween:
Root can be tried by either Baidu Root or using the info found here : http://xdaforums.com/show...=root&page=653

No idea how to provoke a load-image-from-SD on that unit.
[Android Head-Units] Skratchuk:
Can stock 2.7.40 be rooted? Don't get me wrong I know how to root but struggling with this version. Am i missing something?
[Android Head-Units] scott_65:
Kaween, thanks for the great info! I must admit though, even though I've done some extensive reading about this the last couple of days, you've thrown out some terminology and model numbers that I haven't run across yet. So for the sake of simplicity, rather than me asking what all this means since I probably wouldn't understand it all anyway, if you were in the market for one at the moment, which one would you be looking for? And as a follow up to that, any recommendation on a source for it? I have found a few on Ali that seem to be a bit more feature rich, but that doesn't mean they don't exist on eBay as well, especially the more I'm learning about these units. I'll keep looking...

Thanks again!
[Android Head-Units] bettuccio:
I'm more interested to make a backup of sistem .For this I need the recovery TWRP or cwm. If anyone knows, please tell me.Thank
[Android Head-Units] savaj4:
i need help

I need help.

I have my computer I have no name or anything you can help with my problem.

Update your computer and since then it has not gone well ,

the mcu deleted and which now is not my team . I have proven several and not get it to work well , the screen stays uncalibrated ; I tried to calibrate apk and still have the same problem.

The version of the system I installed the 2.8.8 and it works but the screen problem is not solved.

My team and buy it in Aliexpress is for a VW model 8 "

The characteristics of the team are:

FULL AOSP MSTAR CEDRIC3 jro03c v1.0.1.0

Processor: 1GHz dual core Cortex A9 MST 786

Mcu : the unaware , the lost and I 'm testing (help)

system version : 2.8.8

Mcu : 4.3.11 , config, rds , bc6 , color, 2din FZ , TDA7719 , TEF662X

DVD VERSION: 2.13.13 -1200xh

I need urgent help , please
[Android Head-Units] scott_65:
Thanks again for the wealth of great info! I think I'm better off keeping it pretty simple. As stated, since it does pretty much all I need right out of the box, there's probably no need to root. I might some day if I happen to get one that allows me to, but I don't think I'll use that as a shopping point. The one in the link of post #6837 looks like it covers just about all I need, and they offer the option to include the obd adapter with it for like 20 bucks. My only issue is it being on this aliexpress. Is it safe to buy from there?

The truck is an 08 Ford F250. Back when I installed stereos a little more often, double din was double din. It was standardized, all you needed was adapter brackets for your vehicle's specific mounting holes. So assuming this is still the case, I believe that head unit in that link will fit in my truck.
[Android Head-Units] Skratchuk:
I was under the impression this was the latest stock version, have i got it wrong?
[Android Head-Units] bettuccio:
I am sad that there are no recovery. I saw that my system is the version 2.9.1 .Do not know yet if it is the same system that we talk about here on the site. As you see in the picture, says that is Android 4.4.2 but in reality is a 4.2.2 and possibly earlier. Thanks for your answers tell me .If you have news. Thank you. I follow you.
[Android Head-Units] kaween:
My personal experience with Aliexpress has been 100% positive. I've never had a con played on me, never had issues when things did not meet initial expectations. For example, I once had a set of 8 LED lights ordered, and they never arrived. Here's the crux : I could follow the shipment till it arrived at _our_ local customs, and then it vanished. In MY country ! I contacted the seller, he appologised (though no fault of his !) and he did send me a new batch of these lights, free of charge.

If you trust Ebay, you can trust Aliexpress too. Simple.

As for 2din ... yes. 2din is 2din and is pretty standarized at 180x100mm. But what is not standarized is the actual clearance in the plastic front of a dashboard is not. Depending on your dashboard, you may want to look for a model that permits you to avoid too much cutting your dash, that's all.

[MENTION=5873920]Skratchuk[/MENTION] : I run 2.8.8 permroot. Works fine. There are newer versions (2.9.3) but I don't see any advantages in running that. Starting 2.8.6 the unit can run Tomtom correctly. There's a nice&easy 2.8.8_TT permroot on the file repository including instructions. 2.7.40 is ... ancient.

---------- Post added at 09:37 PM ---------- Previous post was at 09:25 PM ----------

PS : [MENTION=4687587]scott_65[/MENTION] : The device posted there is a Zhoon (just checked your link). It is essentially an AN21-U with "added whistles and bells" like the capability of a DVR cam ect ect. I know of 2 people who bought that version so far, and both seemed pleased with it. But I DO remember that the plastic bezel of this unit is quite a lot bigger than said 180x100. I think it's more something like 187x105 or something .... look for ZexGx's postings on this unit for more details.
[Android Head-Units] Skratchuk:
Hah right ok then I will try that thanks, reason i was using that firmware as i found on the radio app the scan to previous and next never worked. It mentions root so is it alraefy rooted?

---------- Post added at 07:39 PM ---------- Previous post was at 07:38 PM ----------
[Android Head-Units] bettuccio:
Kaween thank you very much for your support. I I have another question: If one day it happens that something goes wrong, I can use a firmware(AN21 ) listed on the site ?
[Android Head-Units] dcmtnbkr:
Ok, my apologies, but this thread is a little confusing. Is there a walkthrough someplace on how to update to the latest firmware? The attahced image below shows my current system info.
[Android Head-Units] kaween:
Yes you can. But be sure to note what version you need (display of your unit : 800x480 or 1024x600) and note down today what the exact verison of your MCU is, and try to find that mcu _before_ you potentially would get into trouble.

[MENTION=408671]dcmtnbkr[/MENTION] : I posted a relevant link inclusive video-walktrough a couple of postings earlier.

GOLDEN RULE : do NOT change the MCU unless absolute necessary (= for me : never).

Look here : http://xdaforums.com/showthread.php?t=2528349&page=677 for a "how to flash" instructional.
[Android Head-Units] TheSSJ:
Hi,

I discovered, that the kernel image holds the recovery (initramfs), too. Unfortunately this is a uImage binary, meaning setting a custom recovery in place is possible, but not that easy. I once did it, but this is lost knowledge :D

For anyone interested on how to unpack/repack uImage binaries, see here: http://xdaforums.com/showpost.php?p=25221364&postcount=680

Then you just need the ramdisk of a CWM or TWRP and make sure it doesn't exceed the size of the original recovery (you can shrink the binaries with upx to save some space) and then just repack the whole bunch. flash the kernel and you have a custom recovery in place.

It's a tedious job though...

Cheers
[Android Head-Units] dcmtnbkr:
Much appreciated, is there a guide somewhere that explains what the other files are for? I'm looking to be able to connect a bluetooth OBDII scanner if possible.

Also, anybody know if this has an option for a DVR to record from a dash camera? Thanks so much for the help!
[Android Head-Units] kaween:
To be able use a OBD BT interface, your unit must be equipped with a BC6-type BT board. Most AN21-U will come with a BC5 which does not allow this.

To find out what is build in your machine : write down the MCU version code your unit shows you. (General -> about this device, near the bottom)

Push that value in the MCU decoder (http://an21u.coldzone.ru/), it will show you what kind of BC board the MCU is configured to use.

Another excellent way to find out what kind of BT board is build into your machine can be found in post #6337 .

As for dashcams ... not really. I only know of the Zhoon AN21-U versions that have a capability of using their Dashcam.

I've not toyed with it myself, but people on the Huifei forum have used Logitech Webcams (C930 if I'm not mistaken) and software like DailyRoads, but I have no experience with this myself.
[Android Head-Units] balaes:
New Firmware : V2.9.5 800x480

https://yadi.sk/d/mHCOmXxogLN27
[Android Head-Units] Malcez:
AN21U Maintenance

Hi all

Sorry I haven't posted here for a long time. It would be good if some kind person could update the Yandex common repository, so that we don't have to keep scouring through these hundreds of pages to find the info we need.

This is what I know:

1. The old Yandex common repository - https://yadi.sk/d/tbaxJYL9cJjKK - thank you to whoever did this, but it needs the more recent MCU and firmware files added now. It only goes up to 2.88 firmware and 4.3.9 MCU. There is now a 2.95 firmware (see post #6882) and I believe 4.3.13 is the latest MCU. Whenever new maintenance files come out, I think it's better to put them in the common repository, not a new archive.

2. MCU upgrading - check post #3972 and http://an21u.coldzone.ru/ for info on the mysterious MCU codes. I still for the life of me can't work them out, even with the decryption. Before someone flames me about unnecessarily upgrading the MCU and doing irreparable damage, let me say that I have been having bad trouble with my radio and sound for quite a while. I decided to upgrade to a new MCU based on the similar "10-650101" suffix of the old MCU. I have the DVD and BC6 option (with a working mini-ODBII bluetooth controller so I can run Torque Pro). Yes - the radio is better (much better reception), but the tuner and volume knobs are back to front, and one is in reverse! Fortunately there is a setting in "Extra Settings" (password 123456) where I can fix that. The old MCU was "10" which is "VW" (Volkswagon) so I thought that upgrading to a new "10" MCU would just update the chip functions, not muck up the knobs! Also. I downloaded an Android Hardware Info app - totally USELESS. Tells me the ARM processor info and screen size and that's about it. It does NOT tell me which Audio chip I have, or which Tuner chip I have. Does anyone know of an app which can tell me which is my correct internal hardware? I guess it may be difficult because that hardware may not be "visible" to the android system. And no, I am not going to pull out the system from my car and unscrew the housing just to have a peek inside! Post #3972 says there are THREE possibilities for the tuner chip: 0 = TEF662X, 1 = SI47XX, 2 = TEF665X and THREE possibilities for the audio chip: 0 = TDA7415, 1 = Rohm37534, 2 = TDA7719. The other problem that I am still having (despite the MCU upgrade) is that the Android SOUND seems to disappear from time to time, and the only way to get it back is to execute one of the Native Non-Android Apps (Radio, Audio player, DVD, Aux etc) and quit out of them. Then, the Android sound works again - like a "sound reset". I was hoping one of the MCU zip update files would fix this.

3. Passwords for other menus

Extras: 123456

User: 7890 (in my unit this menu is just a watered-down extras menu)

Factory reset: 7890

Developer options: 7890

USB debugging: john@tw-desktop

Are there any others we need to know?

4. Finally, if anyone knows what the MCU codes "RZC" and "HC" are, I'd really appreciate that too

Cheers

Malcez