yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] pakidermo5000:
I read the forum fast but I could spot that the guys there suspect that the user selling these units, i.e. "semting", is the same as "vwcars". They claim the guy left them down without support after a while. They also claim he might have copied the software from Audiosources.

Take home message:

Before buying this unit, make sure it is not a scam.
[Android Head-Units] donaldta:
It can be programmed to function either way. The following is a quote from their manual for the ODBLink SX. Please refer to the rest of the document for more indepth information.

Post #7
[Android Head-Units] Drakey83:
I've already read that post and it seems like speculation, I'm kinda looking at [MENTION=5702785]nE0sIghT[/MENTION] to verify. Thanks for the info on the ODB2 cord!

Is this referring to the ODB2 port as the host, the HU system as the host, or both?
[Android Head-Units] donaldta:
No worries but you should know my response was based on past experience and is more like an educated guess than frivolous speculation.

It is referring to the USB Host (controller) which is a part of the Android device. The ODB2 connection of the car is considered a peripheral in this case, like a printer or a modem.
[Android Head-Units] Drakey83:
gotcha and thanks, no offence intended.
[Android Head-Units] nE0sIghT:
Bluetooth is not accessible from android. My unit even doesn't have bluetooth android setting.
[Android Head-Units] ryrager:
It seems in the current batch of Firmware that the Bluetooth stack hasn't been compiled into the OS. I may be mistaken and its hidden unless appropriate hardware is found?
[Android Head-Units] donaldta:
It actually depends on the developer for the ROM. In order for Bluetooth to work in Android, it requires two things; drivers for the USB Host and Java APIs for Bluetooth enabled. The developer could have excluded the Java APIs for Bluetooth from the Android Source code. That would streamline the boot process and make it quicker to complete, because there would be less resources necessary to be parsed during the process. Or, the developer could have omitted declaring the "android.hardware.bluetooth" permissions in the /etc/permissions/android.hardware.bluetooth.xml and the {handheld_core| tablet_core|required}_hardware.xml file. This would prevent the compiled APIs from loading and hide the bluetooth option from the settings app.

Btw, I checked the system image that nE0sIghT posted. It appears that bluetooth permissions is declared in the handheld_core_hardware.xml file. However, the android.hardware.bluetooth.xml file isn't present which would account for the bluetooth section in the settings app to be hidden. And I didn't see anything in /system/framework /system/lib /system/vendor which would suggest the drivers and java implements for Bluetooth are present to support it.
[Android Head-Units] nE0sIghT:
Do you see anything that prevents this unit to work as MTP device while connected to PC and adb to work via usb?

I'm already enabled usb.host support so usb mouse/keyboard works fine.
[Android Head-Units] donaldta:
You shouldn't have to "enable" usb host support since that's implied by the full sized USB type A (host/upstream) port on the back. The Mini-B receptacle in the front suggests that's a downstream peripheral port although the color of the inner plastic doesn't quite match. The standard is Mini-A (Upstream - White), Mini-B (Downstream - Black) and Mini-AB (Dual Role/OTG - Grey). I guess you might be able to connect it there for MTP/Mass Storage/ADB connectivity.

According to the Exynos 4412's manual, it supports:

USB 2.0 Device supports:

Complies to USB 2.0 Specification (Revision 1.0a) High-speed up to 480 Mbps

On-chip USB transceiver

USB Host 2.0 supports:

With the USB Host 2.0

High-speed up to 480 Mbps

. There are also mention of OTG in there as well.
[Android Head-Units] nE0sIghT:
No, this is not works.

USB flash/mouse/keyboard works fine. Even my web cam is visible via lsusb. But connection to PC do not work at all

sys.usb.config is set to "mtp,adb". I checked /sys/class - all properties are applied to virtual android_usb device.

As i see in kernel log there is 2 usb hosts - OHCI and EHCI. Both usb ports (front mini and rear full USB) are EHCI ports. Maybe virtual android usb working on OHCI host?
[Android Head-Units] donaldta:
You cannot connect two upstream ports together like, PC to PC. One port needs to be a host and the other a client. If you are connecting peripherals like USB flash, mouse, keyboard and camera to the USB mini port in the front then that would suggest that is an upstream (host) port not a downstream (client) port.

However, that's what confuses me about the Mini port in the front. It is has mixed representation. It physically looks like a Mini-B port which implies that it should be a downstream (client) port by default not a upstream (host) port. However, the color of the inner plastic isn't black. I cannot tell by the picture if it is white or grey though.

It is possible that the Mini port in the front is actually an dual role Mini OTG port; albeit represented inappropriately. The USB specification for On-The-Go (OTG) specifies that if a cable has pin 4 shorted to pin 5 then an OTG port will switch from its default role. In other words, if the port is a USB (host) upstream by default then it will switched to USB (client) downstream with the pins shortened. Or, if the USB (client) downstream port by default then it will be switched to a USB (host) upstream port with the pins shortened.

Do you know if your cable or adapter is shorting pins 4 & 5 for the front USB Mini port? Maybe you need to get a different one that does or doesn't short it to use with your PC. Otherwise, you'll probably need to attached a USB cable physically on the Android board inside.

Well, Open Host Controller Interface (OCHI) is the provision for USB 1.1 that some Enhanced Host Controller Interface (ECHI) drivers come with to support backwards compatibility with USB 2.0, so I am not even sure if that is relevant.
[Android Head-Units] flyboy1100:
anyone actually have this unit? how is the sound quality?
[Android Head-Units] Drakey83:
[MENTION=5702785]nE0sIghT[/MENTION]

Keep us updated on whether or not you get the 4.2 update tomorrow please!
[Android Head-Units] nE0sIghT:
Another guys said that seller changed update release date to ~28 feb
[Android Head-Units] Drakey83:
Wow, fast reply lol. Did he have any clue as to what the change log might look like?
[Android Head-Units] nE0sIghT:
No, just that it will be android 4.2 and "all problems must be resolved". Another info is that default launcher will be same
[Android Head-Units] Orisai:
As long as it includes the Google Services Framework and Apps (specially a working Play Store), i don't care about the default launcher as I'll root the radio and do some tweaking, including it's replacement with Nova.
[Android Head-Units] Drakey83:
Great, my seller just told me that they do not have any unit in stock and they are updating to the new Android 4.2 so now my HU wont be shipped until around March 3-10th. First the Chinese New Years and now this. On one hand I am grateful that he didn't give me some BS excuse why it wasn't getting shipped to me sooner or given me a fake tracking number like other stories I've read, but on the other hand I'm starting to worry that he might be scamming me and I'll never get shipped anything.
[Android Head-Units] donaldta:
At this point, I hope the unit you actually do get is malfunctioning and you end up in being a protagonist in a crazy japanese anime hāremumono story.
[Android Head-Units] Drakey83:
Huh?
[Android Head-Units] donaldta:
Sort of like this http://www.youtube.com/watch?v=sD7uwbj7gqE&t=21m10s. Add ridiculous antics and hilarity ensues.
[Android Head-Units] Drakey83:
lol
[Android Head-Units] Drakey83:
So, I know the China no name brand ODB2 usb cords are not very reliable but what about the ones from newegg or Amazon? I don't really want to spend $50 on a cord and there have to be some decent ones in all of these choices.http://www.newegg.com/Diagnostic-Test-Tools/SubCategory/ID-2747 ,http://www.amazon.com/OBD2-Diagnostic-Cable-KKL409-1-VAG-COM/sim/B002WIN8VQ/2 anyone have any suggestions?
[Android Head-Units] nE0sIghT:
There is seller answer about mtp/adb via usb, recovery mode:
[Android Head-Units] sciallo:
Figures :rolleyes:

---------- Post added at 01:04 PM ---------- Previous post was at 12:28 PM ----------

No need to cross post, I can guarantee most people are following both threads :)

Well, those are all china no name elm adapter (not just a cord) as [MENTION=5389783]donaldta[/MENTION] pointed out numerous times, it's kind of hit or miss with those (btw it's discussed at length in the torque FAQs and forums) while they may look the same on the outside, you never know what serial to usb chip it will come with until you get it...

Amazon has a good return policy so that's the way to go. get it, try it and if it doesn't work exchange it...
[Android Head-Units] donaldta:
Personally, I don't understand why someone would purchase a head unit with such good specifications yet sully it with the purchase of a clone ODB2 adapter. That's sort of like getting a tuxedo for a black tie event then wearing it with a pair of clown shoes.
[Android Head-Units] Orisai:
I also don't understand the obsession with BT OBD2 adapters in car stereos which, unlike phones and tablets, can't be easily removed from the car. I'd prefer to have a device that is powered on whenever I turn on my stereo and has fast PID reading, such as good-quality USB OBD2 adapter permanently attached to my car.
[Android Head-Units] Drakey83:
I am a conundrum:confused:.

Let me guess, you're not married?

Got the Scantool USB adapter for $34 on ebay! http://www.ebay.com/itm/ScanTool-42..._Automotive_Tools&hash=item1e872b1d70&vxp=mtr
[Android Head-Units] Black6spdZ:
has anyone actually gotten one of these units yet?
[Android Head-Units] Drakey83:
I apologize about your wife's passing, I didn't mean to bring up anything bad. I was just simply trying to point out that spending $480 on an HU, another $15 on a PSU, and then another $50 on a ODB2 USB adapter might not seem like a tough sell to a bachelor, because if you want it than obviously you can just go ahead and buy it. But for most married men it isn't that easy.

First you tell your wife about this new navigation system you want and she thinks it stupid and couldn't care less about it but allows you to buy it if you promise to stop talking about it. Then you tell her about having to spend another $15 on something she thinks is stupid but it's only $15 so she reluctantly agrees. Then you have to convince her, after all that, that another $50 dollar adapter is needed for something she doesn't understand nor cares enough to learn about. All I'm saying is convincing my wife that I was going to buy an $11 China clone that might work alot easier than convincing her to let me pay $50 on something that both me and you knows is the best choice but she doesn't understand or cares about, all she sees is $50 price tag. But either way I found it for $34 which is alot easier for her to swallow than $50 even though she is still currently mad at me about this sale that she is convinced is dumb and not needed.

But like I said, I didn't mean anything by it and I'm sorry about your wife.
[Android Head-Units] jakejm79:
Or a pair of fake designer shoes where the soles fall off and trip on your face.
[Android Head-Units] Drakey83:
We actually keep about 3 Excel spread sheets about our finances (budget, check book, and a hybrid one) that is actively looked at and updated. My wife is the main person who does the finances but I look over the spreadshees and we make decisions together. Also the problem isn't that we don't have the money, my wife just had to work overtime and made $700 that we didn't even count on or have in our budget, we have plenty in the bank also but my wife is a penny pincher. Once my wife got the overtime she was actually the one that suggested I spend $480 on the HU because my current JVC unit is going out (it only works about half of the time the car turns on) and I am so horrible at directions and she knows I need one. But she also gets annoyed when I get excited about something and doesn't want to hear me talk about it all of the time. The tough sell was anything after that, she just wanted me to buy the HU and only the HU and she thinks of us getting other things for it that is cheaper as getting nickeled and dimed to death. Also I have already thrown out my bad PSU so the $15 PSU was a necessity.

Either way I am sorry for bringing up anything negative, it was really meant as a joke in response to your comment that I found to be a little harsh and disrespectful. I know your a huge help in these communities but you also seem like quite the asshole from time to time (most recently I saw you question a person's reading comprehension in a quite disrespectful way) and I think it would be helpful if you would lighten up a little bit and maybe show a little more couth in what you say and how you say it. Or don't, whatever, it's just a suggestion.
[Android Head-Units] Zaphod-Beeblebrox:
After reading the last page or two, all I can say is O.M.G.
[Android Head-Units] jonalowe:
Amen. Hopefully we can get this thread back on track.
[Android Head-Units] nE0sIghT:
I installed this unit in my car last saturday.

For now i see 2 really big problems - so big that i want to return standart headunit sometimes:

1. All buttons stop to work when listening FM radio after 2-5 minutes. I'm made video for seller: http://youtu.be/VmBVfDw4Ous

Good news is that problem related only to FM radio app as i see now.

2. I think this unit cuts off front/rear speaker frequences under 60 HZ. So my ears really bleed -) Hope someone more experienced in audio hardware get this unit and try to fix it
[Android Head-Units] nE0sIghT:
I could not understand - what's wrong with music player. Radio sound is good, but music - not. Now i understand. I'm get mp3 stereo test and going to my car - it plays mono. Only right channel in all speakers...
[Android Head-Units] andreyla:
Try external FM transmitter to find if the problem with hardware.
[Android Head-Units] nE0sIghT:
Sorry, i think my post was not clear. I try to explain problem again.

FM radio sound works well - as i see it is function of MCU. Android app only give commands to MCU

But all android sound is mono right channel - so, all mp3 players affected. And it can be hardware problem
[Android Head-Units] jakejm79:
Does the sound settings menu have an option for setting the channel for navigation commands?
[Android Head-Units] nE0sIghT:
Sorry, now i do not understand your question -)

I get android sound settings screenshots. Maybe there will be answer to your question
[Android Head-Units] jakejm79:
Whats behind the music effects or volumes options on the main sound settings menu?
[Android Head-Units] nE0sIghT:
Nothing interesting really. I'm attached screenshots. Equalizer pro installed via Play market and MusicFX - is chinese app.

BTW i'm contacted manufacturer directly ( via www.zhinavi.com ) and asked for support. Hope i will get it.
[Android Head-Units] danimop:
Thanks

Hey guys, I am following this thread since I'm very interested about the head unit but I want to know other people's experiences first since the unit is so new. So thanks A LOT for all the information you have shared!!
[Android Head-Units] Drakey83:
Ha, there website it so terrible. Are they actually helping you out?
[Android Head-Units] nE0sIghT:
Not yet.

About bad mp3 sound - there is low frequency filter applied when pointer in SoundFiled app is on middle horizontal line.

So, there is 2 problems with android sound:

1. Low frequency filter with standart sound balance

2. Only right channel in all car speakers
[Android Head-Units] wtftuck:
I will be buying one as soon as the sound issues are fixed.
[Android Head-Units] Drakey83:
Pretty sure that this has only been verified on his unit specifically. It's still up in the air if its like that with all these HUs or if he just got a lemon.
[Android Head-Units] saidak:
[MENTION=546466]Drakey83[/MENTION]; did you get your Unit, I thought it was suppose to be shipped by the 15th of Feb? keep us updated on the situation.
[Android Head-Units] Drakey83:
My seller changed the shipping date from Feb 15 to March 5th, he said he didn't have any stock and he was waiting for the 4.2 update. It is freaking me out a little but since the money is in escrow through aliexpress I am pretty sure he isn't scamming me. It still pisses me off but at least he didn't try to string me along with lies and fake tracking numbers.
[Android Head-Units] nE0sIghT:
Confirmed with 3 units
[Android Head-Units] Drakey83:
Did you get your button issue resolved? Is there any new from the manufacturers about fixing the mono sound issue?

I also just found a video showing off the 4.2.2 update for this unit. I wonder if there are any noticeable differences.http://m.youtube.com/watch?v=skN1h9Z7uAs
[Android Head-Units] nE0sIghT:
Not yet
[Android Head-Units] Drakey83:
did you get the 4.2.2 update?
[Android Head-Units] nE0sIghT:
No
[Android Head-Units] Orisai:
I don't like the 3G connectivity being handled by an app instead of the OS itself.
[Android Head-Units] Bockiii:
Greetings,

first of all: Thanks a _lot_ for all the information about this unit. I've been playing around with the idea of a car pc for about a year now. My first approach was to build my own (got the XDROID with a display) but got away from that after I saw that in the last year, the amount of available units exploded :)

So I've had my eyes on this unit as well ( Since I did not see a single link yet, I'm pretty sure that links to aliexpress/alibaba are not wanted) and it would be nice to have a gathering post about the latest info available.

I chatted with the seller at aliexpress and they told me that the update 4.2 will come out next friday, which would be March 21st. They confirmed that google play store will be in that firmware.

For the people that already bought this unit: Would you buy it again? Or would you go to an AN-21U unit or something similar?

Thanks in advance

Bocki
[Android Head-Units] chipped:
Sorry if this has already been asked but anyways:

- How is the inbuilt mic

- Can you use an external mic

- Does bluetooth OBD-II adaptor work

- Is there any lag in the animations

Cheers
[Android Head-Units] Bockiii:
Ah, another question (maybe I missed the answer somewhere)

You had issues with Sound (Radio beeing fine but MP3s are Mono). Did you test this with other audio apps like Spotify or something?

Thanks!

Bocki
[Android Head-Units] nE0sIghT:
Previously it was 14 march, 7 march, 28 feb, 21 feb, 15 feb - every friday since 15 feb we waiting for misterious 4.2 update

No

No

Yes. All android sound is mono right channel
[Android Head-Units] Drakey83:
Any news about the mono problem? Has the company gotten back with you? Do we know if this is a hardware limitation or if its something that can be fixed with a software update?
[Android Head-Units] nE0sIghT:
Triple "no"
[Android Head-Units] Zaphod-Beeblebrox:
Waiting anxiously to hear back on your experience Drakey83.

I'm really wanting to pull the trigger on one of these, but nEOsIghT's experience makes me want to pass on this device.

I don't think we've heard much from any other owner's of this device have we?
[Android Head-Units] chipped:
Did the Android update ever come through on 21st March. I'm anxiously awaiting to see if they fixed the mono sound bug.
[Android Head-Units] Drakey83:
I don't really know anything about the update other than my seller keeps jacking me around about the date that he is going the have the HU, and the reason he said that he doesn't have it yet is because he said he was waiting for the factory to finish the 4.2.2 update. He's given me about 8 or 9 different days that he said he will have it shipped to me by, including February 15, March 10, March 16, Yesterday, today, Wednesday, and now Friday. I have gone off on him twice and been offered 3 things for compensation since I ordered this thing on freaking January 28 and its still hasn't been sent, and had to push back the processing time going on 6 times now. I would just cancel my order but from what I can translate from the Russian sites everyone is having this same exact issue and all cancelling my order would do is force another incompetent seller on me at a higher price and since my money is in escrow I'm fairly certain that my seller would have nothing to gain by trying to rip me off.

Anyways, sorry for this rant but this entire process has been incredibly frustrating. Basically what I have learned throughout this entire ordeal, in answer to your question, is that you cant trust anything you hear out of an aliexpress sellers mouth (based on my experience and from what I've read on other websites) and you should try to avoid buying from aliexpress at all cost if you can possibly do so. The sellers dont seem to be scammers, per say, they are just willing to tell you whatever you want to hear (such as the march 21st update) in order to make a sale and they are VERY, VERY, VERY, incompetent. I'm pretty sure that I will eventually get my unit and I am even sure that it will come with the 4.2.2 update but the question is when, and I will never trust a date I hear from an aliexpress salesman ever again.
[Android Head-Units] chipped:
Haha, wow. I don't mind waiting as long as I eventually getting it. But I definitely don't want bugs.

If you receive it soon with the update then please let me know :)
[Android Head-Units] Drakey83:
I'm fine with waiting too, what I am not okay with is being lied to repetitively just to appease me and make me go away. I would of been a whole lot happier if the seller would have told me on Jan 28th that the unit is in the process of being upgraded and that I would most likely not get the product for a month or two. I would of been anxious for the wait to be over but I would of understood that waiting is better than having broken software. The part that is EXTREMELY frustration is getting lied to over and over again. It would of saved me and my seller a whole lot of heartache if he had just been honest to me up front because I know he can enjoy me bugging him all the time about a ship date. And here is an idea, maybe sellers shouldn't be listing products on there aliexpress page as though they are available to order when in reality they are still in development and not ready for a release.

As you can see I am about at my wits end with this process but hopefully the end is in sight, once I do get my unit (if that day ever comes) however I plan on being very forthcoming with my findings on here. I plan on doing a series of videos and answering any questions that anyone might have, time permitting of course.