yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] webdude12:
So FedEx has manage to loose my radio between Memphis and Nashville (4 Hour Drive). They show it being unloaded from a plane in Memphis, and loaded onto a truck that was headed to Nashville on Thursday. But it was never unloaded in Nashville. I have been on and off the phone with them all day today. Sad thing is today was my Birthday, and this was my present to myself. So I really wanted to play.

The vendor said that if its truely lost, they will get one out as soon as FedEx admits that. I want to go track down the truck driver that has my radio in his car. LOL
[MTCB Android Head Units Q&A] pakidermo5000:
S*** man, that sucks. I hope you can get your birthday present soon.
[MTCB Android Head Units Q&A] Baldrick99:
I know what it's like when you're waiting for a shipment...then it disappears...wtf !

Should be easy enough to find the culprit with the tracking, but I don't suppose they will even try !

And I was looking forward to your review......:(
[MTCB Android Head Units Q&A] gangsta101:
WTF!!! How can this even happen?

I've been watching this and other Android stereo for some time now. I hope you catch the traitor driver, lol.

Seriously though, i hope things work out for you.
[MTCB Android Head Units Q&A] webdude12:
After talking with a supervisor the other day, they said that its possible and does happen sometime that as a trailer is being unloaded, a box will slide off the conveyor belt, and then accidentally get set to the side for manual sort later. Then it sometimes gets mis-placed during this process. He didnt know about Nashville, but the packages in most cities are not scanned as they come off the truck, but as they go through the sorting process in that warehouse. He was confident that they might find it Monday, but could make me no promises.
[MTCB Android Head Units Q&A] schplade:
Without knowing too much about android roms, seeing as we have the source code does that make it likely that it is possible someone would be able to build a custom rom for these devices?

Or would we still need to unlock the bootloader etc?
[MTCB Android Head Units Q&A] blankers:
I have had my unit in the car for 2 weeks and not had a problem ........yet.

This is definitely not a good sign though and I'm thinking I may take mine to pieces and check it, before it does break.

---------- Post added at 08:51 PM ---------- Previous post was at 08:25 PM ----------

I don't see how this is going to unlock the bootloader ??

Going into recovery and rebooting is surely just going to.........reboot the unit....

.
[MTCB Android Head Units Q&A] webdude12:
Blankers,

Can you try applying the update? The crazy thing to me is the date on the image file is Dec 2013, but the date on the current rom is Feb, 2014. Seems kinda strange.
[MTCB Android Head Units Q&A] blankers:
The img file is only 278KB wheras the previous one is 643KB so I don't think you can load it as it is......however there is a program with it called Phoenixcard, which, if you google it, is for burning an image onto an sd card....so I tried that.

It seemed to work o.k (see attached screenshot) but after doing it, nothing is on the sd card.............so ??
[MTCB Android Head Units Q&A] ericpaulyoung:
I don't know. This is what I was told to try.

Epy
[MTCB Android Head Units Q&A] webdude12:
I attempted to break apart the update like I was able to do with the other files and this one just hangs. I am using the Rock Chip 3066 IMG Mod Tool to attempt to do this. Should work without any issues, but it gets to the point to mount update.img and the program goes into a loop.

This tells me either this update is encrypted or it is not valid. Not sure which.
[MTCB Android Head Units Q&A] dfmjwa:
Can any one comment on the usability of the reverse camera input?

Does it work at all?

Does it automatically change to the camera input when reverse gear is engaged?

Also what is the form of the GPS antenna and can it be easily mounted?
[MTCB Android Head Units Q&A] Keylo Lo:
Apologize for the damaged unit

Dear all,

First of all, I feel sorry for webdude12 and ericpaulyoung to get the damaged unit(broken tab). And I apologized to webdude12 for my unprofessional response. Sorry~.

The issue has been retold to our boss, and we do attach great importance to this status. Could you(both webdude12 and ericpaulyoung ) contact with your seller and ask them to chat with us? Cause we do not get any news from them, we do wish to help with the problem and fix it.

Here, I would like to notice you all:

1. Choose a retailer with strong responsibility:

Before this year, I worked as a buyer for 3 years, and I know some retailers help other factory to buy the unit, and dismount them, try to copy the Tech. And so, this may easily damage the product, if they do not take carefully on the unit while they are dismantling. And I know the retailer will keep reselling the unit to others, won't send back to the factory with checking again.

2. The pictures sent by webdude12 , by confirmed with our engineer and our boss. They told me the unit definitely has been dismounted by other people. And checked all the TFT boards in stock, none one with such problem. I will take pictures and insert them here tomorrow.

Anyway, I wouldn't say any excuse here. I wish I can fix it and find out the problem. May I ask (both webdude12 and ericpaulyoung ) to take a picture and show me where exactly the white plastic fell off (with red arrows)? Then I will confirm with our engineer again.

And please do contact with your seller, ask them to chat with us. Give feedback to us. We will give you a fair response. Thanks a lot!

Others:

If you like our product or you are intersted in, please do buy from Huifei, or the retailer we introduce to you. This will help you to get best service and warranty.

At the end, I appreciate all people here showing your interest in our product. Maybe something we do are not perfectly or do something wrong, we wish to get your understanding and give comments to us, and we will do better and better.

Thanks of all.

Keylo Luo

Professional + Serious = success cooperation for business

****************************************************

Shenzhen Kai Ge Le Electronics Co., Ltd.

Email: kaigelesales02@outlook.com
[MTCB Android Head Units Q&A] blankers:
Keylo,

It is good that you as the manufacturer are responding to this.

I hope you will work with webdude12 and ericpaulyoung to resolve this issue. :good:
[MTCB Android Head Units Q&A] pakidermo5000:
I also hope you can solve that.

I appreciate that when there are problems the manufacturer is responsive it is a good sign.

Just for the relief of some people, I can confirm that my unit (bought to Keylo) has no broken clip. I can take pictures if you want. Since [MENTION=532077]blankers[/MENTION] has not had any problems either, it seems that it could be a GreenPoint related issue.
[MTCB Android Head Units Q&A] ericpaulyoung:
Here is the clip broken in my unit. If I move the board around, the tape falls out.
[MTCB Android Head Units Q&A] blankers:
I'm assuming it's the clip at the top and it should look like the one at the bottom ?
[MTCB Android Head Units Q&A] Keylo Lo:
Could u please tell me where do you buy?
[MTCB Android Head Units Q&A] blankers:
They both bought from green point

http://www.aliexpress.com/item/2014...CPU-Capacitive-Screen-Car-DVD/1690182065.html
[MTCB Android Head Units Q&A] llazt:
I have one on order from green point also. It will be shipped in ten days because of unit shortage, not too sure if I should cancel it and buy via keylo instead if possible.

My biggest concern featurewise with this unit is the lack of stand by- 30sec bootup, cant be much power used to just power the android part in sleep mode.
[MTCB Android Head Units Q&A] blankers:
It would certainly be worth contacting her to see if she had the unit in stock. :D
[MTCB Android Head Units Q&A] webdude12:
My unit has already gone to American Express. So I can not take any more pictures, then what I have already uploaded. Maybe I will let this thread run a little bit and once I see people buying direct from Keylo arent having issue and maybe there is a little more traction on unlocking the bootloader, I will order again.

But for now, Im going to sit back and watch the rest of you play.
[MTCB Android Head Units Q&A] jereid:
User Manual

Attached is a user manual supplied to me from HuiFei. My unit will ship at the end of the month. Maybe someone will find this helpful.

Edit -- ok, I had to put this on google drive because of size limitations.

https://drive.google.com/file/d/0B2_VSdmNHiW0N1drTkFGdk1YQkE/edit?usp=sharing

Is the URL. Should get you the file if you're interested. Since I'm a noob on this forum, it won't let me post it as an active link.
[MTCB Android Head Units Q&A] nwskipro:
Mine is coming from Keylo direct. I feel pretty good about it - she's been great in responding to my questions and concerns. I'm excited to get it in but I opted for the 1024*600 screen so it will be a little bit further out than others.

Thanks for posting this! Mine will be getting here after yours, also direct from HuiFei. Looking forward to seeing how yours turns out!
[MTCB Android Head Units Q&A] blankers:
Sorry you have had to send it back for a refund.

I was hoping keylo would have replaced it for you, as a goodwill gesture, but guess not. :(
[MTCB Android Head Units Q&A] lamjanus:
Thanks Sickbro, for example. What brand unit do you have? Hui Fei?
[MTCB Android Head Units Q&A] nectop:
I give up guys, I'm sending it back. So i don't rerommend to purchase that unit's for Audi cards with factory AMP and Sub fitted.
[MTCB Android Head Units Q&A] javlada:
Hi, I have HuiFei car radio and I would like to use my own music player for it (probably PowerAmp). I found here the Xposed module which should allow it. How can I install Xposed framework? Is somewhere a guide?

Unfortunately this thread is quite huge and it is getting difficult to find the information here. I believe it would be useful to create a device section for car radios so that questions and answers won't get lost.
[MTCB Android Head Units Q&A] sprfly:
I was under the impression that Kai Ge Le's ebay store was carparts852 based on a previous post here.
[MTCB Android Head Units Q&A] lamjanus:
Yeah, seems to be the correct name. I got a redirect URL from Keylo. Does anyone know the "Witson" systems? I`m als in contact with them and the price seems to be ok. I`m not sure what unit it is.

For example:

h t t p : // w w w .witson.com/en/displayproduct.html?proID=102162115
[MTCB Android Head Units Q&A] typos1:
So yours is the "GS" version then, seems like, as you say its made by hotaudio, unless theyre re-sellers, any more pics of some of the screens ? Have you got the 1.9 update ?

Webdude12 at the very begining of the thread has a factory Audi amp and it worked ok, non of these units work correctly with CAN Bus as yet, kwalsh24 bought a different CAN Bus interface and that sorted his problems out.

I think theyre re-sellers, from the pics theyre either the Klyde version or the "GS" version.

No version is better or worse than any other, buy the one that is the best price..
[MTCB Android Head Units Q&A] ramdani1978:
Power board problem

Hi all,

Does anyone has a problem with the power board?

I think my unit has problem in its power board.

The symptom is like this:

- Suddenly I smell something burn from the unit

- When I open the unit, I realize the the heatsink in the back cover is very hot

- After that I realize that my left speaker is dead

- I bring the unit into local electronics repair, and he change the Power IC (TDA7388)

- On first testing, and change the speaker too, everything is OK

- But when I return home, I smell something burning again

- And when I return to the repairer, he dont know how to repair it.

So does anyone have suggestion for this.

Thanks in advance:)
[MTCB Android Head Units Q&A] lamjanus:
So i can use the 1.90GS version for example if i buy from HotAudio. This does not fit on the Klyde version?
[MTCB Android Head Units Q&A] typos1:
Have you checked how its wired into the car ?

---------- Post added at 01:25 PM ---------- Previous post was at 01:23 PM ----------

I strongly recommend you read the thread BEFORE you do ANY updates. especially the FIRST POST, its clear from your question that you have not !
[MTCB Android Head Units Q&A] lamjanus:
Sorry if i`m not clear enough...I only ask for an device (brand) and an trusty reseller so that i can use the updates as provided in the links a few replies earlier. That`s all..
[MTCB Android Head Units Q&A] Skitals:
Yes, shipped with GS v1.85. I might try the v1.9 update later, maybe it will fix the key tone problem. I contacted hotaudio and they told me to just disable the feature. I'm surprised they didnt tell me about the update, it came out 2 days after my unit was shipped.
[MTCB Android Head Units Q&A] typos1:
Maybe that indicates that theyre just a re-seller then ?

---------- Post added at 02:17 PM ---------- Previous post was at 02:16 PM ----------

You have to read the thread and the internet and decide which one you want and who you want to buy it from - theyre all pretty much the same thing with minor differences.
[MTCB Android Head Units Q&A] sickbro80:
It doesn't fix the tone issue. I saw it mentioned on that Russian forum, and someone pointed to there was just a simple file missing in the build. I also installed the HuiFei firmware update before knowing it was hot audio. Everything still worked, except I wouldn't get sound from certain sources, but the tone worked fine. I also installed the klyde system with the GS .MCU and the tone worked as well. It too works on mine,but again with problems. I only say this to suggest its not 100% brick rate, but there is some very documented risks in doing that from people who have a broken unit, so I wouldn't reccomend it.
[MTCB Android Head Units Q&A] divac12:
I recently bought Klyde unit for Hyundai IX35.

There are some bad things about it.

1. You cannot change buttons color, nor dim buttons and screen using my car dim button. There is an option in software to change colors, but it's hardware problem (I asked Klyde engineers). I am going to try to add dimmer by myself.

2. Built in mic is terrible. I also asked Klyde engineers about this problem, and they confirmed me that in order to use external mic, you must cut wires from internal mic !!!! This is the biggest fault.

3. There is a problem with my car factory USB. It seems that it has a relay for 12V, and USB is only 5V, so it works for a minute, and then disconnect, and again, connect, disconnect. So if you have problem like this in your car (I saw someone showed this on video), the only solution is to connect wires directly on factory USB, i.e. do not use car installation. Going to try this soon.

4. It has cooler, which is good thing, but it's very loud. Going to add dimmer here also, to control fan speed.

Everything else is ok, I am very satisfied with unit. I also tried to install 1.86 software, and brick the unit, but luckily managed to recover it :p
[MTCB Android Head Units Q&A] DWhite456:
XBMC can do so many things. Not only a nice Media Center interface but you can add repos that allow additional items :good:
[MTCB Android Head Units Q&A] agentdr8:
A prerequisite to install the Xposed Framework is that you must have root access. If you haven't done that yet, follow the first post in this thread to the Wiki, which will explain how to achieve root on these devices.

Follow the link in my post to download the framework apk. Either do this from the headunit itself, or on your pc and copy it to a microsd. Once on the headunit, install it from File Manager like any app. After it's installed, launch the Xposed Installer, select the first item which should be Framework, read the warning, and then click Install/Update to enable the app_process. You should reboot the unit. Then install my module, just like any other app, go into Xposed Installer->Modules, and put a check on the module to enable it. You can also tap the middle area of the module item to launch the module settings. But before it will work, you'll have to reboot again.
[MTCB Android Head Units Q&A] DWhite456:
Can anyone tell if this unit is the same unit that this thread is concerning? Seems like a good price. Is other .img file able to be flashed to it?

http://www.aliexpress.com/item/VW-P...en-For-POLO-GOLF-PASSAT-JETTA/1915286240.html
[MTCB Android Head Units Q&A] Skitals:
Okay, I'm glad the tone issue is software and not a problem with my unit.

I went ahead and installed 1.90. I don't notice much difference, but wifi did drop out twice while I was installing apps from the play store. I only played with it for an hour or so last night on 1.85, so I don't know if this is new behavior. It also seems volume levels are overall lower, I have to turn it up higher to get loud. I don't notice any more distortion at higher volume levels, so maybe this was an intentional change to put the sweet spot closer to the middle of the volume range. But it doesnt seem the radio app was affected, so if I switch from Pandora to Radio I need to turn the volume back down.

I tested the mic for the first time and its completely worthless. Not usable. BARELY audible and 90% static. Again, I never tested it on 1.85 so I don't know if this is different with 1.90.
[MTCB Android Head Units Q&A] xrapidx:
With regards to cutting mic wires, I wouldn't have a problem if I knew it would work, my biggest fear is doing it and the external mic doesn't work.
[MTCB Android Head Units Q&A] sickbro80:
I haven't even tried the mic yet. My unit doesn't even have the option for an external mic. Maybe I'll crack it open and try solder Ina connector directly. Sure would be nice to have a good mic.
[MTCB Android Head Units Q&A] Malaysk:
Thank you for help in finding errors. Try to replace it in two files in System/Priv-app and and reboot

Change the files one by one and reboot.
[MTCB Android Head Units Q&A] 7floor:
I'm not sure how it will work when two I2C masters compete for bus control. In theory, I2C should support multi-master configurations, but it could be implementation-specific and not work in this specific case. I have not tried.

Otherwise, no side effects other than you mentioned. But this efect will ruin all the functionality. MCU has its own internal state to communicate to the Sound Processor, and my software has own. They will tell the sound chip different things, you may imagine what would happen.

One may try to not cut the MCU control and report here what happened.
[MTCB Android Head Units Q&A] 7floor:
That's correct.

There's no such interface at present, for sure. But, who knows...

Have you noticed mtcmcutool announced some pages back? We're in touch with its author.

Will not say more for the time being :)
[MTCB Android Head Units Q&A] Tung_meister:
Replacing the mtccanbus.apk has fixed the problem. Thank you!
[MTCB Android Head Units Q&A] 7floor:
The unit won't blow, nothing will be fried.

But the MCU sends the full state even for Volume afjustment. And when you change input to, say, Radio, it would "talk" to the Sound Processor many times, like mute curren input, wait for a few tens of milliseconds, then switch to new input, then wait again, then unmute. Total mess.

---------- Post added at 01:09 PM ---------- Previous post was at 01:05 PM ----------

Stock equalizer tells the MCU a command like "av_eq=5,3,7" where numbers can be in range 0 to 10 and represent bass, middle and treble. And the MCU converts this to values to be sent to specific registers of the sound processor. There is no command to tell the MCU something like "set the Q-factor for Bass to 1.5", nor the command to tell it "set the register X in sound processor to value Y".
[MTCB Android Head Units Q&A] Malaysk:
HOORAY !!! Thank you!!!!
[MTCB Android Head Units Q&A] Rapazzo:
Hey Malaysk, was wondering if there is any specific way to return to a stock image from your custom rom, giving the car to my daughter and don't think she can handle the extraordinary custom work you do.

Was wondering if there is something different you need to do, since I believe your custom image rearranges the flash data
[MTCB Android Head Units Q&A] orik13:
Hi Malaysk,

It seems a download link for "12 October 2015 for 1024X600" (RK3066) does not work.

Thanks!
[MTCB Android Head Units Q&A] Jaihoidundso:
Hello,

thank you for this fckin' awesome thread. I've bought a Head Unit Radio from Carjoying (RK3188 1024x) and use the firmware form Malaysk (thx for all!) and I have a question. I read the threads the last days but it's too much and i'm not sure, if anyone have the same problem like me so i explain it. Sorry for all, my english is not the best.

First Problem: If i scroll the volume button, it turns louder or quieter. Sometimes there is no function after a while. So i scroll and scroll and nothing happened. I can always set the volume if i use the android titlebar. But y? If i reboot the head unit, it works.

Second Problem: Since a few days, I have the problem, that the sound is completely removed, but if i set the volume a short time the music is on. But only if I set the volume. Than I stop the music player press Mute second times, play again and in the most cases it works after that. Oo And here the same question: y? And how can i fix it?

And now the next question: Is it possible to change the boardcomputer text. In my car I have one line in the computer, that shows always "other" or if connect with Bluetooth who have thought it "BlueTooth", on radio the station frequence. But I hate that "other". I like maybe for the navigation extra title. I hope u know what I mean.

If you need: JY with MCU 2.73

That's all for now. I really hope, you can help me. Thanks for all! :)

Greetz from Germany!
[MTCB Android Head Units Q&A] Tumke32:
I use an older version of Spotify on my HU, and it works well (does not crash)

The biggest problem is issue nr. 2. After a few weeks all my offline songs are gone !#$@$#$%^$%^$%^ This bug is still not fixed by Spotify.
[MTCB Android Head Units Q&A] sciallo:
Could this be a HuiFei variant?

I ordered this one:

http://www.ebay.com/itm/201433997805...:MEBIDX:IT

Thinking it would be identical to the one I already have in my other car, AN-21 equivalent and I would know what to do with it.

I got surprised with one that looks the same but has some differences:

Model number on the box is TH8086GN

connections in the back (multiple smaller plugs for the RCAs ext mic, front camera input)

built in wi-fi with rubber antenna mounted in the back

quad core processor

The launcher is the same as I originally had with the AN-21 (live tree/bird nest wallpaper, 4 big non removable widgets for Radio, music, aux etc)

Settings menu very similar with "general" and "Extra setting" with 123456 password (again same as AN-21)

Developer options passwd 7890, same as AN-21

External keyboard isn't working (it does on the AN-21)

Settings->About device shows:

Processor Type: QuadCore-R16 1.6G

Android Version: 4.4.2

MCU Version: 5.3.16-1-10-610101-150819

System Version: 4.4.4_20150821

and here are the specs results from CPU-Z: http://valid.x86.fr/a/lvevye

It was suggested it might be a HuiFey variant, probably because of the processor, but looking at the version numbers I am not sure...

Could anyone point me in the right direction before I go bricking this one trying to root it?
[MTCB Android Head Units Q&A] Malaysk:
Updated firmware for 1024X600 RK3066

Fixed constant rebooting the machine - Thanks for the help Tung_meister

Improved status bar

Changed Music and Radio

Added HD Widgets and AnalogClockWidget

http://xdaforums.com/showthread.php?p=58249825#post58249825
[MTCB Android Head Units Q&A] sciallo:
That's what I though, any idea what this one might be?
[MTCB Android Head Units Q&A] Ch1337:
****'s so frustrating!

Anyway, I just cleared data (And cache) and it started like normal. It works good now, but the odds are like a lottery for it to work or not :(