yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] clearchris:
That could work, basically, it's providing a momentary boost for peak draw. The problem remains that you are still running the unit at the outer edge of what it can support, which will likely cause other issues.

---------- Post added at 08:06 AM ---------- Previous post was at 08:05 AM ----------

How did you break it, how do you know it's broken? Is it repairable?
[MTCB Android Head Units Q&A] Joaco:
Preamp POP

I'm having an issue with the audio and perhaps one of you had this problem before an can shed some light to me. I have added a subwoofer to my unit (using the sub out port) and every time the unit starts a hear a pop coming out of the sub. This also happens when the unit is running and I decide to switch to the radio. The speakers are running directly from the unit. The sub is the only one getting amplified via the sub out. If I remove the RCA connection to the sub the pop stops.

I'm guessing the problem is a ground related issue inside the unit when switching inputs. I've tried ground loop isolators and tested all the ground points regarding the external amp and everything checks out fine. No hissing, no wining just pure bass. I've also tried lowering the gains on the amp and the pop sounds a bit less but nonetheless still there.

Any ideas on this matter will be thanked since this is the only major bug for me. (I really love this unit, Owince Dual Core A9 running coudu's 4.4.4 V4.2 rooted)
[MTCB Android Head Units Q&A] typos1:
Only certain 3G dongles are compatible I dont think that one is.

I m told that everything is the same, including software, only the SOC is different, I think this makes sense as I m pretty sure the SDK forRK3066 and RK3188 chips are the same.

---------- Post added at 02:50 PM ---------- Previous post was at 02:48 PM ----------

The Ownice is quad core, not dual core, so do you have an Ownice or one of the units in this thread ?

---------- Post added at 02:51 PM ---------- Previous post was at 02:50 PM ----------

You have told me what image you have used, you have linked to ALL of the images !

Try the reset button.
[MTCB Android Head Units Q&A] Enc0der:
Based on some Youtube reviews it doesn't looks like the Ownice C200 quad core is that much (if at all) faster than all the other RK3066 dual core based devices... The boot time (most annoying thing IMHO) is pretty much the same as well.

I'm wondering if there's a real advantage that should be expected from these new RK3188 versions that worth the wait and probably the extra cost (?), as long as everything else is suppose to be the same - e.g. still very poor BT mic... If they would say they acknowledge the mic design problem and will fix it in the the next version - that alone would be a good reason to wait.
[MTCB Android Head Units Q&A] CARRisma:
I would go down the proven powered USB hub route but it seems that involves modifying a USB hub and wiring up a thingy to it and the problem I've got is that I've never used a soldering iron before so don't feel comfortable trying it. There doesn't seem to be any premade solutions available on eBay unless I'm searching for the wrong thing.

I was referring to the USB-CAP device not the dongle for which it's designed for.
[MTCB Android Head Units Q&A] typos1:
The only RK3066 devices are the ones in this thread, the Ownice is RK3188.

The mic problem does not apply to all units (I was ready to mod the mic on my Klyde but it doesnt need it, people can hear me fine on internal and external mics) and is easily sorted. The BT is not poor, it is just not part of the Android side of things.

I m not sure which unit's boot time youre referring to but 30 sec isnt that long.

I would wait and see what happens with the RK3188 units, if people say they are not much faster then get an RK3006 unit.

---------- Post added at 03:22 PM ---------- Previous post was at 03:20 PM ----------

No, "going down the powered usb route" ONLY involves soldering if you want to make your own, buying a powered usb hub means youw ould not have do any soldering.

The usb-cap device is for all sorts of usb applications, you dont have to use it with that dongle.
[MTCB Android Head Units Q&A] pboom112:
[/COLOR]

I ONLY TRY ONE This image JY_800x480KK4.4.4_2014.11.21.rar

https://drive.google.com/folderview...haring&tid=0BxmzvLRI7-eNeVA2SWkwM1pLZ28#listv

Trying to get back to Recovery Mode So May Time But Can't Only STUCK A Boot Loop Screen

https://www.youtube.com/watch?v=7MBvGXdmCG8&feature=youtu.be

https://www.youtube.com/watch?v=MlleALMR5yc&feature=youtu.be

This There Any Way To Connect to the Computer with a USB Cable Like A ( OTG ) Cable

To Flash The Rom ? There Is NO Front USB Port Only TWO at The BAck

Thanks Heaps Again
[MTCB Android Head Units Q&A] Joaco:
I have this unit.

http://www.ebay.com/itm/Android-4-2...e-2010-2011-/251620483321?hash=item3a95bfe0f9 So far the only issue I have is the audio POP thing.
[MTCB Android Head Units Q&A] dcervi:
Latest KGL 800x480 factory firmware?

Hi,

Can anyone help me finding the latest available KGL factory firmware for 800x480 units, please?

Regards,

David
[MTCB Android Head Units Q&A] typos1:
TBH what image you flashed is not relevant, if you have no front usb port I think the only way to connect to adb is to take the unit apart and find out where the connectors for a front usb port are - they should in theory be on the CPU board, if its any help I can post a pic of it so someone more expert than me can point out which are the connectors/headers or whatever.

You have a KGL unit, NOT an Ownice one. The solution for the audio from sub pop is to not usb the sub RCA but somehow get it from the normal RCAs , possibly by using a splitter, I dont have the issue myself and I only know that because I have been reading the thread for a long time. I suggest you sue the thread search function to find the posts that relate to it, it should be quite easy to find.

---------- Post added at 04:10 PM ---------- Previous post was at 04:09 PM ----------

Just read the first page.
[MTCB Android Head Units Q&A] CARRisma:
OK, I might be being really stupid here (sorry in advance) but I can't find any powered USB hubs on eBay suitable for usage in a car. I would like one I could wire into the ISO harness but can't find anything suitable.
[MTCB Android Head Units Q&A] typos1:
There were several links posted a month or so ago, possibly by DSA, in the conversation about powered usb hubs that included DSA, myself and pakidermo, among others, a thread search should find them.
[MTCB Android Head Units Q&A] agentdr8:
None of the ones you find online will wire directly into an ISO harness, as none of those wires provide 5VDC (input for most powered hubs). You can either supply the 5VDC via usb cig lighter adapter, or a hard-wired 12V->5V converter such as this, which you could wire to your ISO harness (I would use a small relay and take 12V from the constant instead of ACC switched).
[MTCB Android Head Units Q&A] typos1:
Thats exactly the sort of thing that I was referring to, didnt note he wanted to plug directly into the ISO, but as you say wiring into the - and + would do.
[MTCB Android Head Units Q&A] CARRisma:
They don't ship to UK, so would the following UK based items be suitable:

http://pages.ebay.com/link/?nav=item.view&id=391000580597&alt=web

http://m.ebay.com/itm/131465879390?_mwBanner=1

If the above are suitable, I'd just need to wire it into my ISO harness (with a relay) then connect any old bog standard USB hub into it?
[MTCB Android Head Units Q&A] agentdr8:
Either of those would be fine. And any externally-powered usb 2.0 hub should be fine. Some come with a small cable that plugs into a spare usb port to power the hub. You'd plug that cable into your converter. Here's an example, but in USB 3 form. That hub may work for you, since it's backwards compatible with usb 2.0, but sometimes they don't play well with older devices.

---------- Post added at 10:22 AM ---------- Previous post was at 10:16 AM ----------

I see USB headers in two places on those motherboard pictures, but usually the front mounted usb sockets are wired through the ribbon cable.

If the device is soft-bricked, why can't you put an update image on the GPS sdcard and flash it that way [MENTION=4245867]pboom112[/MENTION]? Does that unit not have a button/knob on the front for power? AFAIK, no one has been able to connect to any usb port/header on these units and reach the device via adb/fastboot. I have a front miniusb on my GS and it doesn't listen for adb at all.

EDIT: If your JY is button-less, then use the reset button in the small hole to the right, as mentioned here.
[MTCB Android Head Units Q&A] typos1:
Thats the VW type, he has the universal one which has 3 holes, the lower is the mic, both upper holes ae switches, someone said (I think by [MENTION=4245867]pboom112[/MENTION] himself) that the top is the reset.
[MTCB Android Head Units Q&A] acun:
anyone found a solution for HU to connect to a iphone hot spot?

I get "not in range" all the time. (changed the name of iphone, changed the password, nothing)

there are some people who managed to make it work but i had no success following their advices.

thnx
[MTCB Android Head Units Q&A] dcervi:
---------- Post added at 04:10 PM ---------- Previous post was at 04:09 PM ----------

[/COLOR]

Just read the first page.[/QUOTE]

I've actually read first page many times, but people have been talking about some KGL firmware from March 2015, and it isn't available on any of the repositories listed on OP.

That's why I asked here, boy.
[MTCB Android Head Units Q&A] typos1:
Firstly, learn to quote properly, secondly, I could be a girl for all you know.

Thirdly do a thread search and your ll find it, there was an update recently that may not have been put on the repository, post what page its on and I ll add it to the repo.
[MTCB Android Head Units Q&A] pboom112:
I have done everything that i could think of Boot with SD card in GPS Slot and the other Side SD Card Slot, Did the Yellow Power OFF and ON Trick, In the little Front Hold the TOP Reset Button and the Middle Button Hole in Every way Possible, Plug USB at the back to PC

cant detect the Device

The Only one that haven't Try yet the the ABD Trick but got No Front USB Port

Plz Help me find the Pin on the Motherboard

and what Program and Drives to use to flash it

Thanks again
[MTCB Android Head Units Q&A] MynticeLX:
Stumped

Ok - I am stumped on two things with this installation.

1. I purchased an Eonon unit (http://www.eonon.com/Car-GPS/Specific-Car-GPS/GA5180.html) and it came with a GM wiring harness. Unfortunately it wouldn't fit my car. So I bought a new harness (GMOS-LAN-07) that came with integrated ASWC-1. So I now have the 3.5mm plug to wire into the harness, but the old harness does not label a KEY1... only a KEY2. I tried hooking to just the KEY2 and it didnt recognize. Should it? Also, what is ASWC-1 need to be programmed to from a HU perspective? There are 13+ different brands to choose from - but naturally none of them are generic. So any help around how to find KEY1.. wire to just KEY2 or program the ASWC-1 to work would be greatly appreciated.

Ok. I was able to figure this one out based on another post. Essentially you need to set the ASWC-1 to be METRA OE. From there, I connected my BROWN 3.5MM wire to a WHITE UNUSED wire that was originally going to the CAMBUS. Then ground.. and BOOM started working.

2. I am also trying to integrate into factory screens in my Suburban. I got the harness to turn the signals into RCA.. but when I hook them up, the video is black/white and blinks.. it doesn't really work. Am I doing something wrong here?

Thanks for any help. Been trying to install this for 2 weeks.
[MTCB Android Head Units Q&A] Karanso:
Yeah :victory:

Is from Rom .....mal13
[MTCB Android Head Units Q&A] ktibor69:
How launcher mod

I have Coudu's KLD rooted ROM.

How can I remove the time/date widget from the default screen?

I would like to insert another widget to this free place.

[IMG="KLD"]http://kepfeltoltes.hu/150328/Screenshot_2015-03-28-10-41-52__www.kepfeltoltes.hu_.jpg[/IMG]
[MTCB Android Head Units Q&A] kjettern:
Wifi problem? Upgrade MCU?

Hello! I have a KGL for my Audi A3, which I upgraded to Coudu's 4.4.4 rom. I have problems with my WIFI reception. It's very weak and sometimes it even drops when I'm connected to my phone that's tethering only a couple of centimeters away. I can see that I have MTCB-KGL4-v.2.08 installed, but I found MTCB-KGL4-V2.21 here at the forum. Is it safe to upgrade? Will it maybe fix my wifi problem or is it anything else that I can do, like soldering a new antenna etc?

Hoping for some good answears :)
[MTCB Android Head Units Q&A] gy_ro:
Do you have some things connected to the usb ports in the back? If yes, reboot without these things connected and see if problems persist. If the problems are gone, try using a powered hub for the connected usb thingies bacause they are the cause of non-stable power to the wifi module.

If you used the search button, you would have found this information yourself ...

Best of luck.
[MTCB Android Head Units Q&A] typos1:
Its built into the launcher, try the KGL launcher.

Agentdr8 said there were 2 possible usb headers on the board, ask him to point them out.

All KGL4 MCUs are ok to try, they may or may not solve the problem, an antenna extension may also help.

I think its Wifi hes having a problem with, not 3G :)
[MTCB Android Head Units Q&A] pboom112:
Agentdr8 said there were 2 possible usb headers on the board, ask him to point them out.

Agentdr8 Can You Help Me Find That USB headers on the board and Point what pin out to connect to the USB and the Program to do the ADB and Fastboot

Thanks Heaps Again
[MTCB Android Head Units Q&A] kjettern:
I did search for it, but I found nothing similar to my problem.. I have nothing connected to my rear usb ports.. Only thing I have connected is micro sd card in front.. Should I try to update MCU?
[MTCB Android Head Units Q&A] devin2:
THX ;)
[MTCB Android Head Units Q&A] pboom112:
Where to Buy Rockchip Rk6033 Core Bored

Where to Buy Rockchip Rk6033 Core Bored

I Think I Brick It

https://www.youtube.com/watch?v=sODVGAXUK9s

https://mega.co.nz/#!8og3SDhR!IcJq-fWWlzCbITj6n8Z5lr_mX1eJmJQNvwPygQXBePM

https://mega.co.nz/#!5l4R1RaQ!gY1jhDeoiup1vCpZOxtsamrgVMgu4ZZRt0gaCtL7gQ4

https://mega.co.nz/#!t4ICQQjY!wdFypbx_THHeGh3fiBhZbY2b1xWOlmQMcIgUcFE8K_k

https://mega.co.nz/#!l9B2jKzR!ro1jUwkMb2U7hpR0C9fy8JxLbV-Pll_uXB2ynO3w0V0
[MTCB Android Head Units Q&A] typos1:
Updating the MCU may help, try all the KGL4 MCUs and see which is better if any, you could also try improving the wifi antenna by adding an external one. Use thread search for how if you do not know, several people have done it it is very easy, someone only posted about it a few pages back.

---------- Post added at 04:02 PM ---------- Previous post was at 04:01 PM ----------

Rockchip chips are very hard to brick, be patient and wait until someone answers your query, do not panic, you should be able to find a way to bring it back to life.
[MTCB Android Head Units Q&A] gy_ro:
I can confirm that wifi has problems too if there is relatively "too much" current drawn via the usb ports. I had that problem in my lab when I prepared the software before I put the unit in my car. Working with a 32GB stick and a Logitech usb cam to test the front cam software caused problems with the wifi. Pulled out all the usb periferals and wifi problems solved. And yes, the 3G stick draws too much current too. I myself used a bucket converter from 12 to 5 volts (I thought from Pololu ?), steady and nice 5Volts forever and up to 2 Amps I think. ;).

This one is already newer as the one I bought; 3.5Amps : https://www.pololu.com/product/2110
[MTCB Android Head Units Q&A] pk313:
I have a problem with my unit...a KLD V2.20 android 4.2.2 all il working fine but wifi don't connect to internet. ..so remain gray. ..with my home router. .ASUS DEL N55U . If i connect to the hotspot of my S5 or my iphone internet in available and working fine.

I try without WPA. ..try to create a separated GUEST net, I try to assign a static IP. .with WPS Pin and WPS auto....nothing. ...still to connect immediatly but without internet access. ..is the first time that i have problems.with my router connection ..is the only device that have problems. ..so i can suppose some .. setting...or...config...on the KLD. ...

Some idea???
[MTCB Android Head Units Q&A] trapier88:
Sound from rear cam

Hi,

In my motor home i have a KGL unit

My rear cam has an integreted micro

How can i ear sound on my unit when somebody is guiding me from the back of my vehicle?

Many thanks for your help!
[MTCB Android Head Units Q&A] typos1:
Ah, ok.

Extand the wifi antenna, see my post a few posts back and search thread.

You d have to find the audio outs and wire them to the headunit, though I m not sure if it will play sound from aux in whilst in rear cam mode, wire something else into aux in and see.
[MTCB Android Head Units Q&A] agentdr8:
I circled what I see as usb headers on this image of yours. The red one looks to go to the rear of the unit, but I'm not sure where the one circled in yellow goes. I realized after looking at this picture again that your motherboard layout is different than the KGL/GS/KLD ones, in that the cpu SoC is on the mainboard, instead of on the back of the display panel. Since I've never seen one of these button-less units come with a front-mounted usb port, I doubt there are any solder pads on the display board for one.

Also, as stated in my previous reply, no one in this forum has reported any success connecting via adb or fastboot to any of the usb ports, whether front or back. So I haven't the slightest clue as to what software you'd need, if you can even get a PC to recognize it over usb. I'm guessing a generic rk3066 driver would work. Maybe something from the freaktabs forum.
[MTCB Android Head Units Q&A] gy_ro:
It might be possible that you have to set your wifi router to another channel. I know some Linux/Apple and maybe Android phones have problems connecting to wifi if the channel is a higher number as 11. So try to use a channel below 10 and you should be safe (in the 2.4GHz band). If problems persist, it's possible that there is some electronic pollution from other wifi/telephones in your neighborhood ? If you got a wireless telephone standing nearby, try to pull it out of wall outlet and see if things get better. Baby intercom, microwave, tv, TL-lamps are possible pollutors too ...

My 2 (euro)cents.
[MTCB Android Head Units Q&A] typos1:
Ah, I thought the headers were going to be on the SOoC. I also have a JY, the same as this, the red does indeed go to the rear usb, the yellow goes to the touchscreen, my JY also has another usb on the other side at the back, this one appears to only have one rear usb, unless its been removed from its hole (right rear), it goes through the hole with the wifi on mine - the JYs wifi antennas poke out of the back.

It was last year someone last said they had tried adb, JYs werent out then, so no one has tried it with a JY. It can be hard to get it into recovery with the reset, maybe he could try again ? Maybe try both buttons at the same time. Also the SoC looks like it will fit into a PCie socket on a pc or something, I wonder why that is, maybe he could connect it that way ?
[MTCB Android Head Units Q&A] pboom112:
Done Every combination on pushing the button

The Reset hole is the top one and bottom hole is the power one I think

And the soft touch power button still work

Both Red and Yellow is USB to the Rear unit

http://imgur.com/UmQZolP

http://imgur.com/lSdrpgv

http://imgur.com/TUg2phe
[MTCB Android Head Units Q&A] typos1:
Yes, I checked on mine, but in your picture it looked though it went to the touchscreen behind the wifi antenna.
[MTCB Android Head Units Q&A] pboom112:
This there a way just pull the Rockchip RK3066 Core Bored out

And plug it to a PC USB Adapter for the Chip and Reflash it
[MTCB Android Head Units Q&A] typos1:
You can obviously remove it, whether or not you can plug it into a pc or something is not something I know, which is why I the question in a previous post, your ll have to wait until someone more knowledgeable than me answers it . . .
[MTCB Android Head Units Q&A] pboom112:
New Toy and it's not Working pulling my hair out

Is there a way to Buy a New Rockchip RK3066 Core Bored ?
[MTCB Android Head Units Q&A] typos1:
I understand your frustration but I think you should wait a bit before you do that, I m sure you could buy one (search Alibaba ?), whether it would be exactly the same as any other RK3066 board, or if theyre modified for this type of use is another matter.
[MTCB Android Head Units Q&A] savaj4:
rcd no responde

As I can get my 2din radiocd android?

I've been to upgrade the operating system as specified at the beginning of the forum and it has been me on the screen with the symbol of VW Das Auto. and there does not pass.

I downloaded several versions of the product, I have installed and have the same problem.

Can someone help me?
[MTCB Android Head Units Q&A] ultradj83:
Dear, have you ben able to find KGL 2.06?

Thanks.
[MTCB Android Head Units Q&A] typos1:
What unit have you got ?
[MTCB Android Head Units Q&A] Karanso:
The bug from music player who starts always fitst title everything is gone.

I put all music files from sd slot in gps sdslot and play from this, all works fine.
[MTCB Android Head Units Q&A] ktibor69:
I see you modded the KLD launcher.

Can you mod the launcher that the startup date widget is disappear. I need this place for another widgets.

I will be very happy, if you can make this modding for me/us.

Thanks
[MTCB Android Head Units Q&A] devilsoft:
I never found that, but I used KGL4 v2.09 instead, which works perfect with my HU.
[MTCB Android Head Units Q&A] ultradj83:
What device are you using?

I'm on ES9610A, it works with KGL, with KGL4 it has problems with buttons...
[MTCB Android Head Units Q&A] gy_ro:
Wrong wifi solution

Sorry for the above misleading statement guys,

Today I discovered that the wifi problem is indeed different as Typos1 pointed out. Since my unit is still in my lab, I have the Acc and +12V leads twisted together on the power supply. I discovered that when I switch on the power supply, I do have wifi. If I do a software reboot, I don't have wifi after Android is back. The only way that I manage to get the wifi connection back is by shutting android down in a proper way and physically turn off the power supply. If I try to reboot without turning off the power supply or kill Android by turning off the power supply, by no means it is possible to connect to wifi.
[MTCB Android Head Units Q&A] acun:
thnx for reply,

but unfortunately i have no idea what to do with that information. What file i have to modify? can u help me with that?

I strongly don't believe no one in this forum is not using (or tried ) to connect to a iphone hot spot. is there somebody with a "happy ending" in connecting and maintaining such a connection?
[MTCB Android Head Units Q&A] devilsoft:
Well, I bought my HU from Witson. I have a huifei (KGL) unit, which is using KGL4 MCU firmware. The v2.09 fixed all the issues for me and it works ok on my car, Opel Vectra C (2008).

Try to install the latest KGL firmware from this forum and see if your HU works like it should be. I see that the latest version for your KGL, you find here (v2.08).