yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] ffwd4490:
I found this from Autopumpkin. There are links I haven't checked that should carry the installed software.

http://www.news.autopumpkin.com/?s=root

---------- Post added at 04:36 PM ---------- Previous post was at 04:04 PM ----------

After doing a little more reading, there looks to be an xda version of 4.4.4 uploaded to google docs that is already rooted. Im about to install Titanium Backup and do a full backup. I will then attempt to install that version of 4.4.4 and see how it goes.

---------- Post added at 04:43 PM ---------- Previous post was at 04:36 PM ----------

Lol, I forgot... Titanium needs root. So yeah, still need a way to back up my existing install.....
[MTCB Android Head Units Q&A] comptechltd:
Thanks for the reply. Yes I saw the document from Pumpkins website as well as the post on the first page of this thread. They all advise to do a full nandroid backup before you root BUT you can't do a nandroid backup until you root. My unit is already 4.4.4. My only concern is there are several 'what I feel' are cool features built into their android build and not just seperate apps. I just dont want to loose them forever.

Steve
[MTCB Android Head Units Q&A] ffwd4490:
I'm in the same boat Steve. I'm still working on trying to find a solution to backing up, either to the sd card or over wifi to my pc.
[MTCB Android Head Units Q&A] comptechltd:
It's like a catch-22. I'm just concerned I'll lose some functionality that exists right now although I don't know that for sure.

Steve
[MTCB Android Head Units Q&A] coudu:
Here is v4.2 image for 800x480, same as above but based on a newer release (141223).

Nothing seems different but there might be some fixes and improvements... :rolleyes:

BIG THANKS again to [MENTION=383136]buccaneerbob[/MENTION] for sharing the original FW.

Download latest versions HERE
[MTCB Android Head Units Q&A] peti007:
Can somebody who has a 4pda account upload the i2c.rar archive from the above url?
[MTCB Android Head Units Q&A] MasterPrenium:
Does we need to unterstand that the amp is controlled via an I2C bus ?

---------- Post added at 12:43 AM ---------- Previous post was at 12:26 AM ----------

Thanks for your job ;). But when you update your release, you remove the previous one. Could we have an history of different releases ? Maybe guys don't keep previous update and if they update to the last one, if they face some bugs, they couldn't flash back previous release.

I know it's gonna use some storage space (if it's the problem, I can host files for you ;)).
[MTCB Android Head Units Q&A] coudu:
Sure, v4.1 back online ;)
[MTCB Android Head Units Q&A] comptechltd:
Coudu,

Please forgive me for being a little slow with this BUT do your rooted roms have all of the internal 'goodies' that the stock units have?? For example changing the button colors is on the system menu. There is a multiband equilizer...etc.

Steve
[MTCB Android Head Units Q&A] coudu:
Yes it has it all. only things that differ are written in the post.
[MTCB Android Head Units Q&A] comptechltd:
Thanks, Coudu,

I'm installing it now.
[MTCB Android Head Units Q&A] ffwd4490:
Installed the latest version without a hitch :). Thanks a bunch for your work. I now have a rooted system i can toy with!
[MTCB Android Head Units Q&A] RyanBRZ:
Can you and if so, how do you customize the home screen widgets on these units? I upgraded mine to the Google Drive rom linked from the OP (https://drive.google.com/folderview?id=0BxmzvLRI7-eNeVA2SWkwM1pLZ28&usp=sharing#listv) . The ROM I used is KitKat444/Custom/XDA/KLD_4.4.4_800x480_141126_rooted_light... build. The car home is much better than the default Klyde 4.2.2 car home as it has clock\weather and replaces weather with music or radio widget when being played.

But if I switch music players, can I make the music player utilize that same spot?
[MTCB Android Head Units Q&A] comptechltd:
You beat me to it. Did the same and everything is working great.

Steve
[MTCB Android Head Units Q&A] agentdr8:
You hit the "Car" menu on the left, and then you can drag items from the nav bar to the trash, or from the app drawer to the nav bar.

You can't remove the clock and weather widget from the first home screen. You can however use one of the other screens to the right for other media player widgets.
[MTCB Android Head Units Q&A] comptechltd:
I think I ran into one small issue with

http://huifei.fs-fileserver.de/content/firmware/coudu's_roms/4.4.4/800x480/KLD_4.4.4_800x480_141223_rooted_light_reparted_init.d_v4.2.zip

Since installing it I have had issues with WiFi connectivity. For some reason it doesn't connect as quick or as solid as the stock ROM. Aside from that I am 99.99% satisfied!!!

Steve
[MTCB Android Head Units Q&A] xrapidx:
Do you know if 3G is working?
[MTCB Android Head Units Q&A] antfros:
3g working, now trying that spotify no crash.
[MTCB Android Head Units Q&A] peti007:
If alternate control of the internal amp increase sound quality, then an external amp via RCA outputs solves the sound issues?
[MTCB Android Head Units Q&A] xrapidx:
I haven't rolled back yet, so I'll give it a go.
[MTCB Android Head Units Q&A] FrenchSparda:
Someone know if those unit are from the same manufacture ? And are using same ROM, same MCU ?

http://fr.aliexpress.com/store/group/univrsal-car-dvd/1463369_258748312.html
[MTCB Android Head Units Q&A] manicuspanicus:
radio sounds better in v2 or it is just me? lol
[MTCB Android Head Units Q&A] sixxkilur:
Based on some of the features and design they are identical to other brands.

It appears these head units are marketed the same way video cards for the PC are; that would be different companies add their own customizations software and some

hardware specs as seen from MSI, Asus ,Sapphire, EVGA, Gigabyte, HIS and many others.
[MTCB Android Head Units Q&A] typos1:
Yes, these are Joyous - "JY" units.
[MTCB Android Head Units Q&A] sixxkilur:
Airplay (not so much!)

I do not care for Iphones and use only Android OS device when applicable. The Pumpkin GS-C0219 HU supports Airplay and as we know is an Android HU device. Does any one have any best recommendations for how to stream movies from Android device such as phone, tablet etc to the HU? What software works for you. What methods are you connecting to your HU from your other devices? Example Wifi-Direct, Bluetooth, media servers, WiFi-Hotspot and etc.

I have many other issues dealing with the buggy software this Jelly Bean 4.2.2. OBDII via BT seems to be one of my biggest issues. The HU connects to OBDII BT adapter fine just will not communicate 90% of the time. This is with Torque, Dash Command and other apps. My OBDII BT adapter is one of the most supported adapters on the market; I have the OBDLinkMX from Scantools.net. This device works flawlessly with my S4 on all apps I have tried. I asked the support at Pumpkin and they responded with "maybe that OBDII adapter is not supported by the HU.

Any help or feedback would be appreciated.
[MTCB Android Head Units Q&A] dcervi:
Tomtom maps on GPS SD card in android 4.4.4

Hi,

I had Tomtom installed on my unit with the maps sitting on the GPS SD card, but after uprgrading to coudu's latest 4.4.4 I'm not able to make it work again (known Tomtom problem with external SD cards).

Is there a way to swuap mount points for internal_sd and external_sd, using some init-d script or something, to be able to make it work again?

David
[MTCB Android Head Units Q&A] xrapidx:
So far 3g and torque working :)
[MTCB Android Head Units Q&A] FrenchSparda:
thanks for your answers guys

my only concern is i dont like big hardware buttons like most units have on their right and legs..those 2 big buttons for volume and tuning are awful ;)

thats why those units without any big hardware buttons are great...my opinion :D

So , you think in the future i will be able to upgrade without any problem if i order it ?
[MTCB Android Head Units Q&A] typos1:
You mean upgrade the software ? If so then yes, the Joyous units are RK3066 like the Klyde, Huifei, Roadmaster, "GS" and "MD" etc units.
[MTCB Android Head Units Q&A] ultradj83:
Dears, any ideas about how to replace the Bluetooth app with an other one supporting Speed Dial and that can go to background when in call?
[MTCB Android Head Units Q&A] dcervi:
Thanks [MENTION=6041319]dsa8310[/MENTION] for pointing it out. I've re-read OP many times but somehow I missed it.

In fact, I was wondering why there was an install-recovery.sh script sitting on my SD since last time I've upgraded the unit [emoji23]
[MTCB Android Head Units Q&A] FrenchSparda:
yes i mean upgrading the software of course, i'm a flash addict :D
[MTCB Android Head Units Q&A] xrapidx:
No :( 3G only worked the first time, after a reboot it wasn't working any-more, same as the KLD4.4.4 version. Tried unplugging and restarting a few time, doesn't pick up anything.

Anyone have any idea where to start looking? I'd like to stay on 4.4.4, but can't go without 3G.

On the plus side, Torque seems to be working fine, start-up on boot is a bit slow, but it starts eventually.
[MTCB Android Head Units Q&A] bobojan:
Anybody noes how to remove android startup before the car logo? Thanks
[MTCB Android Head Units Q&A] MasterPrenium:
Should look at dmesg, network interface ect ... while android is booted. You can install a terminal emulator to do this (or wifi adb ect ...).

Do this when it works, and do this again when it doesn't work, then we could check what are the differences. Maybe it's the dongle module that isn't loaded (or with an error).
[MTCB Android Head Units Q&A] ultradj83:
PPP Widget works but fails in disabling builtin 3g subsystem so there's a conflict on startup...
[MTCB Android Head Units Q&A] RyanBRZ:
Torque is not finding my obd2 usb, will updating MCU from 2.02 to 2.12 help any? I am running klyde 4.4.4 custom, will and older ROM possibly help?

Also, hardly any FM stations are coming in, is this a ROM/MCU issue?
[MTCB Android Head Units Q&A] MMouse:
Hi Kwalsh24, You have the port but i asked for this unit at hanker also, it was however the old model as i was told.

No worries, so far i have no advantages having the new model:

-only RCA rear, no front

-no OTG port

I hope it will arrive soon and that your happy with it.

As far as i understood, you need the file with the 1 in there, i think pakidermo5000 made a type o on the first page

It said BMW, but in previous posts they stated its for Mercedes.

As i understood, flashing the wrong MCU will not brick your device.

It will only break MCU contact. No guarantee though

I just flashed mine (KGS8401) yesterday:

-FM stores names

-Voice search now works in nova Dash

-24 sec boot time

I lost IGO, mirror link, torgue and other special apps for my original rom

So make sure you have a Nandroid backup ( allowing you to pick the apks from it)

First flash failed and i freaked, but i ran it again and it whent fine.

pay attention during falsh, at first i believed it missed the MCU and rebooted again in recovery

(the update img is detected, it seems the MCU is falshed as a final stage)

(Only the MCU on the GPS SD is not detected, so you need to run it in recovery mode)

But radio stored was deleted again so i believe it was already done.

Thanks again for the tuts on flashing the firmware update
[MTCB Android Head Units Q&A] kwalsh24:
Hmm well, as long as I don't have any issue with the hardware itself ill be happy, as I wonder if the new models if they removed that port to make it not so hackable via otg ports
[MTCB Android Head Units Q&A] pakidermo5000:
Yes I was not sure whether Mercedes was also included. The original post by Hankers was:

PS: there are 2 kinds of "update.img", for bmw benz model, choose the "update.img" from KGL1. for other car makers, choose the "update.img" from KGL​

If you can confirm that KGL1 is also for Mercedes, I will update it.
[MTCB Android Head Units Q&A] rob waterston:
HiuFei

Hi

I have been following this thread for a while I have purchased a unit listed as

Model Name: CB-7648A

This has a Main CPU of RK3066 1.6 Ghz Cortex A9 Dual Core Android 4.2.2 so I think its the same

I am not sure as if I can show a link to it so I have not shown one.

The model No does not match any of the KGL ones listed wanted to know if it is the same

Thanks
[MTCB Android Head Units Q&A] MMouse:
Bluetooth MCU app

HI Guys,

Any of you got a better app for Bluetooth calling and stuff.

Yes contact search works, but numbers for incomming calls are not displayed.

Same as call history.

Thanks
[MTCB Android Head Units Q&A] typos1:
Does anyone use Torque widgets ?

I intend to use them so I d like to be able to have widgets for the built in apps (FM, Music etc) as well, so I can view the Torque gauges AND see the radio staion/music I m listening to at the same time.

Can anyone tell me whether there are widgets for the built in apps ? Get the feeling there arent and I d have to try and make them myself :-/

Do you have to order the dash cam option ? I mean whats to stop someone plugging in a webcam into a usb port and downloading a recording app ?
[MTCB Android Head Units Q&A] brownstein72:
Well, I flashed the update to my unit because my wifi reception is extremely weak. I have to lay my phone down on top of the unit and still only get 1 weak bar. Anyways, it seems that update wasnt quite compatible with my unit as it messed up the funcitonality of the hardware buttons. Does anyone know of a way to remap those buttons? it wasnt under factory settings. I am the one that bought the Honda Civic version that came with piece for my dashboard around the unit.

edit: I was trying to install TWRP because I did the TWRP nandroid backup according to the first post/wiki but for some reason it didnt seem to work any idea on how I can reflash that backup?
[MTCB Android Head Units Q&A] planert360:
Thank you!

First off I use Torque Pro now (With bluetooth on my phone) so I know how it operates, just was curious how well it looked on screen, how logging worked, gauge clarity, ect, so if you get it going please post up.

SEcond, I found the pics, and it looks good, Im sure it would work swell for both Torque and Spotify to make them look best.

Third, Ill wait on this, haha.

Fourth, Thnaks.

Fifth, Awesome, just what I wanted to hear.

Sixth, still working on this, found most of my other answers, thanks, youve been a big help, except anything on this question VVV on build in app widgets?

I saw a few screen shots it looked like the radio did, so Im curious.

Honestly, Ill most likely use Torque widgets and spotify widget.
[MTCB Android Head Units Q&A] 1-2-Hak:
Unfortunately if you did the upgrade it formats your sdcard and you lose your TWRP backup. I know - it happened to me :(

So if you have a TWRP backup make sure you copy it to the removable sdcard before applying this update.
[MTCB Android Head Units Q&A] kwalsh24:
hmm thanks forvthe info, my rule of thumb is to always have a backup of my phone on my l

laptop or NAS drive just in case something like this were to happen. Now that I know it formats the SD card on updates, ill definitely backup my unit elsewhere first before I flash, just in case my unit isnt 100% compatible, hope it is as 15/18 second boot tike sure beats 30+

So here's a question, I've noticed a few reviews on various android baaed radios, my main focus is the SD/mp3 playback app. Is this app skinable? As I've seen one app where it will show the artist, song title and album cover in the app ffor the current song playing, this radio and its app however only seems to just shoe the artist song title and track duration ?

Now back to the broken clip issues, is anyone taking any precautions towards this when they get their unit? Or are they leaving it be and hoping for the best? Sounds like iif any warranty work is needed, we the end user are doing the work to rebuild the units ourselves lol, so I'm debating on cracking my unit and either taping the cables or hot gluing them
[MTCB Android Head Units Q&A] edding7:
Hello,

There is no unit for BMW Serie 1 :(

Im wondering, what do you loose when you go for the universal 2 DIN instead for a OEM one.

Anybody knows what function you loose with the standard MCU of the universal unit?
[MTCB Android Head Units Q&A] lucky-jon:
I tend to agree about warranty. By the time you have convinced someone that you have a genuine warranty issue (after all, they tested all the units before shipping, right?), then produced customs paperwork, paid for shipping (and insurance?), risk it being 'no-fault-found' or damaged in transit, then risked return shipping process, customs / import duty etc, I think you are far better off trying to fix yourself.

I was pretty suspicious when I read about those clips. The cable and clip components have virtually no mass, so even if the whole unit were dropped, if all the parts remain attached by screws / clips, the cable retention / locking clips and wires would experience minimal stress. Neither would I like to ride in a vehicle that puts such vibration on the unit that cables hit their natural frequency and break loose. The shocks that a head unit will get in transit are likely to be far greater than when installed in a normal car. I have had some cars with rock hard suspension and I don't think they could break cable retaining clips on those cables.

Now heat and expansion and aging of plastic could I think eventually cause issues..... but I feel that given the beat up state of most packaging that comes from China / Hong Kong, the equipment has been through some tough ruggedness testing already!
[MTCB Android Head Units Q&A] getehem:
Universal unit vs specific unit

THe differences do not come from MCU, but from the absence of canbus and of adapted power connector.

A universal unit comes with standard ISO connecxtors and no canbus. It means that you should manually connect the steering wheel controls wires of the car with these of the main unit, then set up each command through the units interface. Also you loss the display of informations from main unit on the on board computer screen, and some other functions ( depending on the car make and model) as well. Example : open door alarm,
[MTCB Android Head Units Q&A] edding7:
thank you for your quick answer.

Does it mean i loose all the information of the little screen of the car? (Average speed, Km for the gasoline available.. etc) ufff! no way to loose that!

That's is related to this unit doesn't support 2 way canbus?

There is a way to recover all this functionality? im really interested in this unit
[MTCB Android Head Units Q&A] lucky-jon:
Any one used standard re-programming of Steering Wheel Controls?

I am still trying to get the power to turn on and off with my VW Caravelle 2007 ignition.

Georges tells me that possibly I needed a canbus interface, even though I don't have steering wheel controls. I guess that canbus is used just for on / off control from the ignition key. The door locks seem to generate the same messages so that locking the doors also turns off accessories.

Under the main SETTINGS menu, there is a section to program SWC. Has anyone used that? Each button / function on the programming screen has two indicators on it. Why? Can each function have two control codes allocated to it?

My head unit has two wires that are not wired into the ISO connectors, marked KEY1 and KEY2. What is the function of these? Are they CANBUS or dedicated for SWC? Connecting CANBUS to them does allow the HU to respond to some CANBUS messages, but not reliably.
[MTCB Android Head Units Q&A] Sengir:
Obviously you don't lose any of the CDB infos about your car.You only lose the infos about radio or turn by turn notifications if you have a navigator and the steering wheel controls.
[MTCB Android Head Units Q&A] kwalsh24:
I think ill play it safe and put a little glue on them connectors haha, even with my sales Rep telling me they are going to do some quality control tests n what not, I just feel I should aid their work lol. As if anything were to break they will likely just send the parts to fix it.
[MTCB Android Head Units Q&A] edding7:
I supose that it doesnt matter a lot to loose all this things but i cant loose steering wheel controls. The universal 2 din huifei unit says it support steering wheel controls, so now im confused.
[MTCB Android Head Units Q&A] 1-2-Hak:
So anyone who has the new update... Can you tell me does the mic work in Android now? I mean if you click the mic icon on google search does it hear?
[MTCB Android Head Units Q&A] Dareksa:
Universal HuiFei units support SWC.

I have universal 2 DIN HuiFei KGL-7610 in my Toyota Avensis and I just had to connect KEY1, KEY2 and GND to car instalation and everything works very well.

The problem is only with programming double features to the button on the steering wheel. I have not found a way how to do it.
[MTCB Android Head Units Q&A] ultradj83:
The problem is not in setting apn, the built-in 3g subsystem is buggy and fails in reading and sending commands to 3g dongle...
[MTCB Android Head Units Q&A] markastor:
Any solution for the wi-fi drop? Sometimes works like a charm, but most of the time, signal loss, bad reception, etc. :(
[MTCB Android Head Units Q&A] xrapidx:
Yip. On first boot after loading the new firmware, 3g works. I can browse, etc... after a restart its gone, and I can't get 3g back...the Klyde 4.4.4 did exactly the same.

Going to go back to 4.2.2. - can't keep trying the various updates
[MTCB Android Head Units Q&A] ultradj83:
Well, also 4.4.2 is not perfect, I had disconnections streaming video or downloading fastly via 3g or Wi-Fi...
[MTCB Android Head Units Q&A] RyanBRZ:
My Klyde unit (running 4.4.4 custom ROM from Google drive, and 2.02 MCU) is only receiving 2 FM stations. I took the lid off of the unit and there is a metal box on the circuit board where the jack goes into the radio so I cannot tell if all connections are solid. Can this be a software issue before I go messing with the circuit board?

Thanks!
[MTCB Android Head Units Q&A] comptechltd:
Coudu,

I'm using ver. 4.2 of your rooted Klyde . I keep getting errors from com.google.android.gsf.login saying an application attempted to use a bad version of google login. Any ideas??

Steve
[MTCB Android Head Units Q&A] RyanBRZ:
I was trying to get into factory settings and it kept saying invalid password. It somehow let me in anyway and I saved a new radio setting. Now my screen is not turning on but the radio is still turning on and playing music. Does anyone have any ideas?
[MTCB Android Head Units Q&A] agentdr8:
Hit the reset button. Changing the radio chipset in factory settings shouldn't affect the screen or backlight.
[MTCB Android Head Units Q&A] RyanBRZ:
It was still doing it, the screen would light up only when it wanted to. I flashed a new ROM and MCU and it's working again.
[MTCB Android Head Units Q&A] ultradj83:
Dears,

some popular and less popular questions about 4.4.4

1. 3G/4G - The buggy 3G subsystem might be hardcoded into kernel, can anybody confirm? Is the 4.4.4 stock ROM affected by the same problem or it just appears on rooted custom ROMs? Well, PPP Widget does the job, but how to make it automatically connect on boot?

2. Radio presets - No way to save them, MTC Xposed module doesn't help, too. Any ideas?

3. Phone/Music Service - I cannot understand what's used for, so I disabled it, apparently no difference.

4. Full single file backup - Is it possible to backup everything into a single update.img to be restored with stock recovery in case of need?

Thanks a lot everybody!
[MTCB Android Head Units Q&A] juliocohen:
Android tablet apps

Friends,

Sorry for the newbie questions, but I read more than a 100 pages and didnt find a solution. Well I bought a Klyde KD-8053 and I am completety new to Android after a life with Apple, since the IIe.... Well, new to Android and enjoying. I am trying to learn about the new firmwares, mods, but I have a basic question: when I install apps in the car stereo, it installs Android Smartphone ones. I noticed that the Waze, SiriusXM and Speedtest doesnt fit well in the screen. When i go to Google Play Store, it show my device with an smartphone icon, not a tablet. Well, the tablet specific apps fit best in the screen, just like the iPad ones.

Any clue? What can be done? Help!

Thanks

Julio