yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] typos1:
Ah, I see.

Hmm, I was thinking Hot Audio was most probably just a seller, until I saw the "HA" MCU, which suggests that they are a manufacturer as well, unless theyre doing a "Joying" and naming themselves so it looks like theyre manufacturer when theyre not. But as the GS units that were very popular last year have totally disappeared this year, I m gonna take it that theyve re-named their units "HA" to reflect their company name, at least until I hear diferent. Not sure if theyre anything to do with the BN versions either, but for the time being I ll put HA and BN ROMs in the same folder on the fileserver.

Kylde are doing TPMS now, cant work out whether the baord has to be modfifed or whether its retro-fittable or not, they have said tehy cant do DAB, DVB-T and TPMS together and that you can only have one of them, which is a pain, I ll keep the thread updated when I get tot eh bottom of it.

Sounds to me like you dont have resistive SWC and you have CAN Bus instead. Using one of the Key lines is also common for connecting CAN Bus SWC. SWC can be grounded by connecting to any earth on the vehicle inclusing the normal ground wire.
[MTCB Android Head Units Q&A] halloj:
No way, Jose. Both Hyundai and KIA have resistor network for the swc. Of course they also carry Can-buses, but not for the swc. Take

a look at a schematic for respective car as I did two years ago and you will find the resistor network. Trust me it works that way in the three cars

I've got.

The thing that trick people to believe it's Can-bus is simple. The stupid manufacturer connects it to the Can-bus-box when it's

delivered. That took me quite some time to figure out the truth.
[MTCB Android Head Units Q&A] slackmartian:
Thanks. I can see the network settings so I think that's included, also lights are on my 3g dongle, do i definately need external power?

What is this customization of call-pppd? Sorry I've been scanning the front page and dozens of posts in this thread and haven't found anything.

Could it be time to test a different rom for 3g, or will it not matter in my case?
[MTCB Android Head Units Q&A] slackmartian:
Sorry I must be blind :D Thank you!
[MTCB Android Head Units Q&A] mike.s:
(Really large, untrimmed quote and off-topic picture.)

Take it to PM instead of polluting the thread further.
[MTCB Android Head Units Q&A] TiBiSMART:
"Holding the power button while turning on the unit will get you into bootloader mode. **This is battery power not acc power** The screen will be black but plugging in a usb to the front usb will prompt the PC to install the RockChip bootloader drivers - this might help http://www.cnx-software.com/2013/11/08/simplified-method-to-install-rockchip-usb-drivers-in-windows-xp78"

download RKDeveloptool1.37 from: https://docs.google.com/file/d/0B3yMu4YxYB5DQ0lKMkVVRmFxU28/edit

browse the kernel.img (you can unpack the update.img with RKwinTools_v132:) and flash it.
[MTCB Android Head Units Q&A] niru1978:
Hi I have a hui fei kgl with crappy Bluetooth call due to the internal mic.

I opened the box after seeing the posts here. Unfortunately I couldn't find the capacitor C32 anywhere near the BT module. Could someone guide I have pictures of the board attached

Thanks in advance
[MTCB Android Head Units Q&A] agentdr8:
I believe it's C102 in your first picture based on location, but you'll want to verify with a multimeter.
[MTCB Android Head Units Q&A] vaughany2:
eBay no. 161334610158
[MTCB Android Head Units Q&A] 1-2-Hak:
I agree the mcu chip will be the same and the software developer is MicronTek. They will be rewriting the software to support different hardware that is interfacing this MCU. this is just the control unit for the AV hardware.

Please elaborate what you used to extract the bin. Do you know what coding it is or have you just been looking at it via hex editor. ** Ok I see its all done in ASM. 8051 MCU SPI as interface to other hardware maybe.

Thanks
[MTCB Android Head Units Q&A] dark alex:
Your Model is Erisin ES9401A

Well okay... According to your MCU Version it should be a KGL/HuiFei Product so lets step over this part...

First of all I would try to redownload the whole firmware and use another SD Card as it could be just corrupted.
[MTCB Android Head Units Q&A] typos1:
Read the WD8801 thread for info on that unit !

Yes, I agree the second one looks betterl, when it comes, let us know the MCU type !

Cant find the first one, but it says "Android 4.0" in the title, these units are 4.2.2.

Dont worry Alex, theres no problem, your assumption made perfect sense, just trying to get to the bottom of who makes what, doesnt matter if theres a mistake made along the way !

Great ! You think theyre all the same ?

Maybe, I think there have been only "suggestions" so far, the info for the RM Excel sheet in the wiki came from manufacturers data, no one has actually looked at an MCU to confirm it.

They may be the same, or maybe not, until we actually see the chips we cannot confirm it.

Maybe that they are different MCU chips using a similar language ?

Anyone want to dismantle their KG, /RM or KLYDE unit and see ?

(I m waiting for a Klyde one, will check mine when I get it)

No need to step over it Alex - Erisin are known KGL re-sellers !
[MTCB Android Head Units Q&A] vaughany2:
The manual I got with player confirms its a HuiFei. Tryed redownloading and new cards. Still the same errors occur. I'm lost lol
[MTCB Android Head Units Q&A] dark alex:
does any operation succeed or does everything fail?
[MTCB Android Head Units Q&A] sprfly:
I just noticed that, but it is 4.2.2. It's item 1187811681 on aliexpress. How about the eBay one; no go? Thanks!
[MTCB Android Head Units Q&A] typos1:
Theyre both RK3066 units, probably KGL from Aliexpress and Klyde from the ebay one, the back of the one on ebay does not appear to have the usual Klyde back, but the seller has been selling double din units for years, including several Android ones, so it could be a library picture. The Aliexpress one has no pictures of the normal KGL homescreen, but show what looks like a KGL Bluetooth music widget, deffo has a KGL back.

All the info needed to tell the units apart is contained in post #1669 and on the first page, so you can check for yourself which units are which.

Are you looking for someone to recommend a unit ? !

Get the one you want, dont rely on us to choose for you, its your decision !!

No one make is any better or worse than any other, they are all good, nothing wrong with any of them, was an issue with a clip breaking on the KGL but that was traced to a reseller who dis-mantled the unit.
[MTCB Android Head Units Q&A] 5TARKAN:
ok guys, decided to post after reading through the whole thread (took me about 4 days!)

glad to see that there is a strong community here contributing.

i ordered this unit for my mazda 3 mps 2010:

w w w.aliexpress.com/item/New-Android-4-2-Car-DVD-with-GPS-Navigation-System-Bluetooth-AM-FM-IPOD-TV-3G/1947030078.html

looks like a "klyde"

will let you know my first feedback once the unit arrived.

my strnghts are more on the electronic and hardware side rather than software, so hope i can give still some valuable input here when it comes to hardware connections on these devices (did not read much about it so far)
[MTCB Android Head Units Q&A] coyttl:
In the PDF (and maybe the google docs - could you add a simple field that contains the MCU 2-3 letter appreviation for the makes? (i.e. KGL, this new 'GS', and Klyde's three-letter for the MCU version, which I can't recall at the moment..)
[MTCB Android Head Units Q&A] dark alex:
Probably you could find out about the beeping issue? I guess it's a bad shielding in the unit. Could you check if you also have the problem when using RCA PreOuts?
[MTCB Android Head Units Q&A] 5TARKAN:
i will defenetely use the pre outs, as my car is equiped with a built in bose system including amp and subwoofer. amp has front and rear input, no separate sub input.

can you please refresh my memory what was the issue with the beep?
[MTCB Android Head Units Q&A] saopacic:
Hui Fei on BMW E53

Wonder if anybody has this in E53. If so does it support MID OBD functions (trip computer mpg etc)
[MTCB Android Head Units Q&A] typos1:
This listing :

http://www.ebay.co.uk/itm/400710876307?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

states "dual channel CAN Bus" dont think anbody has tested it, dont know whether it only applies to that one (modified by re-seller) or all KGLs, or all makes.

My car has same Bose set up.

Are we slightly further towards a custom ROM, with all this new info on the MCUs ? Is the code still un-released for the rest of the Android ??
[MTCB Android Head Units Q&A] vaughany2:
Seems its just the update thats failing. The MCU in About now says, V1.86.
[MTCB Android Head Units Q&A] sprfly:
I was more or less just curious where people are getting their units from. Who is a reliable reseller with reliable product I guess. Thanks again!
[MTCB Android Head Units Q&A] idr3s:
Quick question...

Does everyone here with KGL units have the mirror link functionality working properly?
[MTCB Android Head Units Q&A] coppertop2000:
First of all, they call it MIRROR LINK, but it is not. It is Mira-Cast or Screen Mirroring. It is basically a wireless display...no control of your smartphone.

I tried to get it to work, but couldn't figure it out. I could connect to my S3 fine using SCREEN MIRRORING..and it looks like it connects. But nothing shows up on screen. The WiFi Display app doesn't seem to do anything. It could just be corrupt on my headunit.

To be honest though, I don't think it's a useful feature. Anything that you want to mirror can just be run directly off the headunit. If I want to open a webpage or Netflix or YouTube, I just open it directly on the headunit. My phone just provides an internet connection.

If you're looking for this functionality primarily, I would suggest getting an AppRadio3 or similar JVC, Kenwood, etc. You will get better support and better audio. The new devices also support phone control over bluetooth and MHL/HDMI video...so the mirroring solution is pretty great.

Hope that helps.
[MTCB Android Head Units Q&A] idr3s:
Thx for the info [MENTION=5903202]coppertop2000[/MENTION] .. Mainly wanted to know because ive already ordered a HuiFei and im told that theyre fixing the software issue thatll fix mirror link for my unit.

Personally I dont care for it either but theyre insisting on finishing up with installing that feature before sending it to me. And thats why I wanted to double check if its always been missing in these HU's
[MTCB Android Head Units Q&A] coppertop2000:
Better to have it fixed either way. Also looks like they're adding proper iPod USB control in the newer units as well. Hopefully it will be a software updateable feature...although I'm not sure.

I will send a message to my seller about the "mirroring link" not working...hopefully they can provide me with a solution.
[MTCB Android Head Units Q&A] U2Endless:
Easy and fast, it seems to work! Thanx
[MTCB Android Head Units Q&A] tylerwatt12:
Does anyone know how to get into recovery on a touchscreen+softkeys only device?

Most videos I see make use of the volume button, and knob which my model doesn't have
[MTCB Android Head Units Q&A] SilverViper2k:
I haven't gotten the chance to connect the external mic, so I can't tell if I'm having issues yet. I saw some pictures of soldering an mic cable to the bt chip, it got me confused and so I was wondering, since my JY already has an external mic connector, does that mean that I don't have to do this mod?
[MTCB Android Head Units Q&A] tylerwatt12:
To add to the confusion:

I flashed the firmware and MCU update, the one you downloaded

MCU is now MTCB-HCT-V2.70

Android Ver 4.4.4_07082015

Model S07

Kernel 3.0.36+ root@chun-book #745 Aug 5 16:52:07 CST 2015

Build Number rk3188-eng4.4.4 07082015.09:18:06

---------- Post added at 06:35 PM ---------- Previous post was at 06:30 PM ----------

Here's what I did.

I did the *#hct#root# trick to get root. Then downloaded reboot recovery from the play store. I plugged a USB keyboard into the USB port on the unit, and navigated through recovery with that.
[MTCB Android Head Units Q&A] tylerwatt12:
1024x600
[MTCB Android Head Units Q&A] Acampbell:
I've tried searching and couldn't find any concrete answers (probably tapatalks fault) to the following problems. What is the voltage on the audio preouts(RCA's)? I just installed the JY version yesterday and noticed my volume has greatly decreased from the OEM unit with an active Line out converter. I'm thinking its the preouts voltage. The second question has anyone been successful at getting torque or Carista to work? I have a BT ELM 327 adapter that I've had for years and it has worked with all other android with out a problem. It does not even show up in Bluetooth devices. The third question is on cars with a can-bus system. I have this installed in as 2011 VW CC, is there anyway to get song information to show up with a music app other than the stock music player? I'm not too fond of the JY music interface.
[MTCB Android Head Units Q&A] pants001:
Ive had spotify crash on boot before saying that the SD card was not ready

Is this only on initial boot or all the time?
[MTCB Android Head Units Q&A] zorantoma:
You have a reset hole left side down. Hold it in until the butons start to flash and it will go in to recovery.
[MTCB Android Head Units Q&A] niru1978:
Thanks I did assumed it is the C102 as I could trace it going to PIN 4 on the BT module. Also I would like to know if there is anyway to disable internal mic altogether and use the external (modified) mic for both calls and android functions.

Im not so good at electronics though I love to do soldering and de-soldering stuff. :D
[MTCB Android Head Units Q&A] halloj:
I disagree concerning the shield. This in not RF, this is audio and in that case the shield not be connected in both ends.

You should use a grounded socket like I showed earlier and leave the shield open in the BT end. This is to achieve one common ground,

rather than a lot of different ground potentials. This is showed in the thread in an earlier picture.
[MTCB Android Head Units Q&A] lord_byte:
What not work? Car model and year please
[MTCB Android Head Units Q&A] slackmartian:
Tried the script yesterday, nothing happened. There is no symbol or any indication that the 3g dongle is plugged.-

Is it safe to say I need external power on the 3g dongle, or anything else I can try?

This seems to take 12v, can I use this for instance? : http://www.ebay.com/itm/Orico-Super...er-H4928-U3-/201056561228?hash=item2ecfe7a84c
[MTCB Android Head Units Q&A] Marius B:
I talk on phone this week and it is on vacation. For version 2.0 have some problem with light script implementation.
[MTCB Android Head Units Q&A] slackmartian:
I Don't think that will work for me (guess I will have to use a hub?), I don't have any usb directly on the HU that I can modify, only the front usb.

http://www.autopumpkin.com/car-dvd-...system-support-3g-wifi-obd2-dvr-air-play.html
[MTCB Android Head Units Q&A] slackmartian:
These are my findings:

Connected externally powered usb hub, I managed to get 3g 1 time of 10.

Connected front usb on HU I managed to get 3g 3 times out of 10.

Connected back-usb cable I didn't any connection at all.

The rest of the time nothing happened, i did a reboot between each test, also activate/deactivate airplane mode.

It seems to me that there is something wrong somewhere else because the HU doesn't always seem to take in/activate data...
[MTCB Android Head Units Q&A] ktibor69:
The back USB port is unpowered:

Buy these:

This HUB is disassembled by screw:

http://www.ebay.com/itm/High-Speed-...C-Laptop-SS-/170888134408?hash=item27c9b9ff08

and

http://www.aliexpress.com/item/R1B1...erter-Module-12V-To-5V-3A-15W/1216933522.html

These are working together fine on my HU. I use USB camera too near the 3G modem.
[MTCB Android Head Units Q&A] slackmartian:
That's fine and all, but even with the 3g dongle powered there seems to be issues getting it to connect, i had more success connecting via the front usb on my HU than the hub.

Also the usb hub you listed is powered from usb, not externally, i though the 12v to 5v step was for the usb hub, am i wrong?
[MTCB Android Head Units Q&A] ktibor69:
The USB HUB isn't powered. You have to make powered with soldering.

In the USB HUB input usb +5V line desolder and solder the +5V cable of the power adapter to empty point and solder the GND of the adapter to GND of the USB HUB.

I got the GND and +12V from the cables of the cigarette lighter.
[MTCB Android Head Units Q&A] slackmartian:
I have basically the same setup in my car right now to test the 3g dongle... It's a powered usb hub getting juice from the 12v car cigaratte slot. And still I have problems with the dongle, the HU doesn't seem to pick it up straight away... It connected one time with the powered hub and a couple of times when plugging the dongle straight into the HU... So this leads me to believe it's not really an "under power" issue, and also I have lights firing on the 3g dongle even when connecting it to the back of the HU.
[MTCB Android Head Units Q&A] maynardflies:
USB or Bluetooth Tethering

Just want to add my +1 to this issue. I have not found a way to enable USB or bluetooth tethering on my HU, which I'd much rather do instead of wifi hotspot since it (presumably) uses less power.

Any idea if this can be supported? If so, is it on the roadmap?
[MTCB Android Head Units Q&A] vlad_pelinescu:
Why instead of 3g dongle you dont use some portable 3g-4g router? I use TPlink m5350 and it works great.
[MTCB Android Head Units Q&A] halloj:
Why don't you guys just take a Huawei 1750 modem and use it. No fancy stuff needed whatsoever. I've been using it for more than one year.
[MTCB Android Head Units Q&A] Malaysk:
I also have a modem 1750 - Works perfectly from the beginning :good:
[MTCB Android Head Units Q&A] o2sys:
Are you guys able to fit this radio into your double din dash?

I have a ford and none of the double din dash kits fit over the headunit.
[MTCB Android Head Units Q&A] xrapidx:
Well.. I've done the powered usb hub, made no difference. I've ordered one of those 7.2 dongles mentioned above... Will see if it makes a difference.

However... I think it has more to do with network type (2g, 3G, etc.) And signal quality.

I've noticed in remote networks with only 2g cover the modem just drops and disappears continually.
[MTCB Android Head Units Q&A] veget83:
Sorry I don't find a way to connect Audi car bt to HU aux in.... :/

Dark Alex contact me for new function of can bus, like onboard computer , text car display and other...

But nothing, work only steering wheel.

( Audi a3 8p year 2012)

Other problem are the poor quality of HU mic... I find a way to connect original car bt to HU ( all work properly but can't ear call audio)

Inviato dal mio HTC One M8 utilizzando Tapatalk

---------- Post added at 05:57 PM ---------- Previous post was at 05:54 PM ----------

Huawei modem e5331 work great more than 1 year...

Inviato dal mio HTC One M8 utilizzando Tapatalk
[MTCB Android Head Units Q&A] slackmartian:
Well I certainly don't think it has to do with under power either, something else is causing these issues...

I'm getting this one: http://www.ebay.com/itm/Better-Huaw...yer-hotsale-/251928027675?hash=item3aa814a21b

Hopefully I won't have any more problems :)
[MTCB Android Head Units Q&A] warr4768:
I said that over a month ago, I think they must like fault finding projects;)

Time you spend and try different 3G dongles you would off bought a mobile wi-fi outright and be on the internet hassle free for months.
[MTCB Android Head Units Q&A] agentdr8:
The problem is that there are variations in DIN sizing from country to country. ISO 7736 defines a single DIN as 180mm x 50mm, but in the US, we don't use metric, and it comes out to being something closer to 7.09375" x 2" (or 4" for DD). The DIN sizing is only the outer dimensions though; most headunits and dash kits have front fascias that cover a portion of the headunit's faceplate, and that area isn't standardized at all. Most Japanese OEMs provide trim rings to account for the gap around the controls and the outer enclosure, and some dash kits try to accommodate by doing the same. The non-vehicle specific Chinese headunits seem to work best in double DIN slots that don't require any sort of trim rings or plates. Or find a unit specific to your vehicle that includes an integrated dash kit/front face.
[MTCB Android Head Units Q&A] niru1978:
I removed the internal mic, I did not remove the capacitor, connected The mic to BT as suggested and found out that my WiFi and BT doesn't start!!!!

When turning on WiFi or BT after boot it goes down no message or error. I reverted to original and since its late night will check in the morning if my hardware works or if I have screwed it.

If anyone know what caused my HU to lose the BT and WiFi just or removing internal mic and connecting bt mic directly, please guide
[MTCB Android Head Units Q&A] Marius B:
For what it is this ?

For what it is this ?
[MTCB Android Head Units Q&A] mike.s:
Reversing brightness. Set it to something other than 0, and your screen will change brightness when the reverse camera is on.
[MTCB Android Head Units Q&A] o2sys:
Great...they did provide a bezel for it but still not quite close. The gaps bother the hell out of me:
[MTCB Android Head Units Q&A] mike.s:
??? A 20" (508mm) or 40" (1.016 meter) dash opening???

(and it's not clear where agentdr8 came up with 7.09375", since an inch is exactly 25.4 mm, so 180 mm is closer to 7.0866".
[MTCB Android Head Units Q&A] agentdr8:
The US "standard" (and that term is very loose) for DIN width is 7 3/32", which is 7.09375". Most mfgs usually round up to 7 1/8" for the hole, to allow for some wiggle room. Either way, neither is exactly 180mm.

But this doesn't seem to be the OP's issue anyhow; it's not the enclosure size that it isn't fitting into, it's the dash opening, which is dependent upon the faceplate trim, which there is no standard. The OP should have a trim piece fabricated to get rid of the gaps. Most all car audio shops can do this.
[MTCB Android Head Units Q&A] SilverViper2k:
Could you be so kind to describe the other options? Preferably in the wiki?
[MTCB Android Head Units Q&A] qtpie70:
I just wonder if you have a modified DVD app which can play video from DVD discs in fullscreen. The current built-in DVD playback app in my unit doesn't have an option to resize the the video to hide the two black bars at top and bottom of the video. The built-in video playback app, however, has the option to adjust the video size.

Thanks,
[MTCB Android Head Units Q&A] DiGi91:
Received my head unit that was SUPPOSED to be for a Compass/Patriot and it came with the Wrangler canbus decoder... I'm assuming this will not work? Did you ever get your issue figured out?

Thanks,
[MTCB Android Head Units Q&A] jkchr1s:
Yes, I contacted the seller and got the canbus adapter for Wrangler. The seller shipped it for free, and I got it in about a week.

It did the exact same thing, a beep when connected and nothing more. The reason for this is that the unit beeps as power is connected, but since Jeeps don't have an accessory wire, it never gets the signal to power on.

There is a high speed and low speed canbus network for these vehicles. The Wrangler is high speed, and the Compass is low speed. The canbus adapter communicates at different intervals for each type, so the message that the vehicle is powering up cannot be deciphered by the adapter.

Tldr: contact the seller and explain you received the wrong canbus adapter. Mine was shipped at no cost to me.
[MTCB Android Head Units Q&A] DiGi91:
Already contacted my seller and I am pretty bummed as I planned on getting it installed tomorrow, I have read that it is possible to bypass the can bus adapter and get the acc power from the cig lighter or the ignition. What else if anything would I lose with bypassing it if possible? I have steering wheel controls on my patriot but I also purchased a PAC-CP5 just in case I needed it.

Thanks for the quick reply, been doing a little research and pretty bummed right now :(