yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] ptclabs:
4.4.4 i give up for now

It is just too buggy on a GS for me

The wifi problems were one thing, but I discovered something else. I cannot call people from the head unit. This is a little problem. The phone list comes up click on someone and hit call....nothing happens.

google voice search keeps crashing, the only thing that sucks to go back is iloveradio works great on 4.4.4. It has not worked properly on any other version, you always have to start it twice as it crashes the first time.

I am back down to 4.4.2 much more stable. until an update comes out.
[MTCB Android Head Units Q&A] agentdr8:
Make sure you save the presets this way:

- Install XposedMTC, enable module, enable option to restore presets for radio, and reboot

- Launch Radio and tune & save all presets on all bands that you wish to have restored by XMTC (FM1,FM2,etc)

- Hit Home and open XposedMTC preferences

- Hit Learn Presets (you should see a toast stating as such)

- If the radio presets get reset to blank or defaults, hit the Back arrow to exit out of Radio, and then relaunch Radio. Your presets should be restored.

You could theoretically use dump_image to dump the various partitions and then build an update.img with the rktools, but the stock recovery always formats /data, and doesn't restore any data partition, so you would always have to restore/reinstall apps separately.
[MTCB Android Head Units Q&A] RyanBRZ:
I forgot to connect the antenna booster\amp wire :eek: .. Im getting all stations now. Thanks for your input
[MTCB Android Head Units Q&A] manicuspanicus:
im running coudu's v4.2 on 4.4.4 without anything else (no framework and module) and i can save preset stations with no problem.

obd works as it should on bluetooth adaptor

music service is used with third party music apps like poweramp. stock music player does not resume to the last played track , it starts over from the beggining. you use the service to tell poweramp to start again at that point.
[MTCB Android Head Units Q&A] comptechltd:
Does someone have a listing of and maybe screenshots of different launchers that may be available for these units??
[MTCB Android Head Units Q&A] sixxkilur:
More Testing

I have the GS-C0219 and just updated the OEM 4.2.2 to the KLD_4.4.4_800x480_141223_rooted_light_reparted_init.d_v4.2. During the update process in recovery the first update attempt ran a few task then an abort message was shown and the HU rebooted and loaded back into recovery mode and began the update attempt again; this time it was successful.

I have not had time to run extensive testing on what works and what does not but I will share what I discover.

My android smart phone also used with the HU is a S4 SGH-i337 running I9505G Lolipop 5.0 firmware with old AMDL bootloader.

Hotspot from phone to HU works I can not test hotspot from HU to phone since I have no 3G Dongle.

BT to and from phone to HU seemed to pair quickly (much better than 4.2.2).

Sygic installed on GPS card works flawless thus far (even with the hardware NAV button).

IGo GPS works fine

Torque Pro seems to work fine.

DashCommand also works.

Airplay to and from Android device works via hotspot.

WifiDirect just as annoying as it was in the OEM 4.2.2 release (sends request then never connects).

Radio station presets stored without using 3rd party modules.

Video file playback resumes from last time frame.

Wireless backup cam (not tested).

BT hands free calling works good (sound is clear on both ends).

One issue I have with Google Play store is after my account is signed in all the previously purchased apps in the Play store try to make me buy them again; if I accept transaction is declined.

A reboot seems to solve the already purchased apps issue.
[MTCB Android Head Units Q&A] ultradj83:
Well, only some apps have smartphone and tablet versions, if the author repute it necessary.

In your case the problem is not the version, but it's that these units are 800x480 and don't have portrait mode.

This is unusual for Android, the apps you listed usually force portrait mode to work.

If you've Xposed Framework installed you can install App Settings module, enable it, reboot and try to play with settings for the app you want to use.
[MTCB Android Head Units Q&A] xrapidx:
Dammit. 3G also not working on latest 4.2.2 from KGL. (2.09)

Can anyone confirm the highest 3G working version ... don't want to go back to 1.86
[MTCB Android Head Units Q&A] ultradj83:
Are you sure it depends by MCU?
[MTCB Android Head Units Q&A] xrapidx:
3G was fine before... and I haven't flashed another version. Suppose I could try a later version.

Is it possible that later versions of the MCU are required in later versions if the
[MTCB Android Head Units Q&A] ced60:
I have no camera

I checked all the wiring and grounding inside. everything is good. This can only come from the system. FM was operating before I ROOT but after not. So a system file must be corrupt. Someone an idea?
[MTCB Android Head Units Q&A] antfros:
1 Day with coudu 4.2 and mcu GS 2.20

For the moment coudu work well for me.

3G working, first time, second time, no problems ( i need test more )

Torque working

Spotify working without Crash at the moment ( i need test more ) (only problem, when turn off engine with spotify launched and turn on the engine again, the spotify auto launch and i get not SD card, i think that the external SD Card is not ready for read spotify cache as soon.
[MTCB Android Head Units Q&A] bobojan:
Ced60 have you tried to write to the seller usually they write back with answers
[MTCB Android Head Units Q&A] ced60:
nan I have not tried because the radio was working before I ROOT, so the seller will say surment it's my fault.
[MTCB Android Head Units Q&A] cybertix:
Same issue on my side, FM was operating before... very strange
[MTCB Android Head Units Q&A] Petrows:
Microntek HeadUnit service 1.17

Hi guys!

Check out the new version of my service for this headunits: Microntek HeadUnit service 1.17

Whats new:

- Added fature for hook Android system event of sms ("call" in True Contacts app) and start a call via bletooth-connected device (next using system UI for call notification). This provides starting functionality of some "dialer" that could provide call from any android app. I have some troubles with true system dialer permissions, such app could not be published in Play Store... But sms "call" is tested and working fine with True Contacts app - tap on tel number starts a normal call.

- Added some features on user demand - safe volume on start, settings fix, etc.

- Added russian locale

- Refactored settings

- Bug fixes

Get it from Google Play: play.google.com/store/apps/details?id=com.petrows.mtcservice
[MTCB Android Head Units Q&A] R4D3N:
When will be released V4.2 for 1024x600?

V4.1 has many bugs:

- 2 loud thumps on changing MODES and 3 at startup

-google services crash

-boot loop when inserting and usb stick/sd card

4.4.2 works good thought.
[MTCB Android Head Units Q&A] RyanBRZ:
Are there any apps that allow SMS conversation through a Bluetooth connected phone?
[MTCB Android Head Units Q&A] FrenchSparda:
Love the new design on Klyde's units

http://french.alibaba.com/product-g...g-with-kd-6952-android-4-2-2-60108101746.html

the 2 horrible knobs finally dissapeared...i just hope the customization colors for backlight buttons is still available....and they dont mention if RDS is still available on radio.

I think i'm gonna order it soon
[MTCB Android Head Units Q&A] ffwd4490:
If any of you have installed a backup cam, could you tell me if its safe to wire the reverse in lead from the head unit directly to the power of the reverse lamp? Want to make sue the reverse lead can take 12 volts.
[MTCB Android Head Units Q&A] RyanBRZ:
I connected these three together and it works: the reverse lead from car, reverse in on radio, and camera 12v+ in.
[MTCB Android Head Units Q&A] ultradj83:
What about a different Bluetooth/phone app with speed dial?
[MTCB Android Head Units Q&A] ffwd4490:
Thanks for the replies guys. I'm on my way to get an rca video extension cable. This is all installed in my 2013 Ford E 150. It's taken a few days to tweak everything, but atm i'm pretty happy with this unit. The FM does not work however, but for me thats not a problem seeing as I never use the radio.
[MTCB Android Head Units Q&A] reklamos:
Hi all,

I've been using Avin Avant 2 without buttons for sometime now.

I'm not sure what CPU it is using as it is not listing it apart from ARM Cortex A9.

I was able to root it with root master and run nandroid backup but that is about it. The device does not have SD card slots only 2x USB ports but when connecting to PC it is not being detected.

There is a Factory setting with code 0000 that allows to enable some features and developer mode.

I do not know even how to change boot logo on it :(

I was wondering if anyone tried to modify it?
[MTCB Android Head Units Q&A] ESTIMULO:
yes! please coudu don't forget us [emoji6]
[MTCB Android Head Units Q&A] ultradj83:
3G problem

Dears, I'm afraid but the latest from Condu doesn't solve the 3G problem, it seems to be the 4.2.2 subsystem, playing video streaming or long downloading it stops working until soft reset...
[MTCB Android Head Units Q&A] agentdr8:
There's quite a few on the Play Store. They are usually found under tablet-texting type apps.
[MTCB Android Head Units Q&A] Petrows:
As a just "proxy" for phone app - you may install my service and make speed call from the True contacts app, this is already working for this moment.

About complex app - this is become possible (and quite easy) for now. I will try to make a some widgets to pack with my service - recent calls list for example (with android contacts).
[MTCB Android Head Units Q&A] Mquinteiro:
Hi! I got same one.

It looks very well but the fake off is making me crazy, 3g modem do not restart correctly and some aps also. And can't put it in airplain mode to restart the modem.

If you see the photo few serial numbers between our units!

Do you know where I can start to learn about this radio?

Best regards
[MTCB Android Head Units Q&A] RyanBRZ:
Is there anything that can be done about sound quality on these units? I am beginning to miss my factory radio. My subwoofer sounds less full and the overall sound quality took a noticeable hit. Running a Klyde on 4.4.4 v2.12 MCU using stock Music app.
[MTCB Android Head Units Q&A] manicuspanicus:
Sound has improved since 4.2.2. Power amp sounds pretty good if not excellent ,however radio still has problems but has improved too.

Στάλθηκε από το GT-I9505 μου χρησιμοποιώντας Tapatalk
[MTCB Android Head Units Q&A] RyanBRZ:
So the sound issue isn't 100% hardware? I've only tried the stock Music app so far.
[MTCB Android Head Units Q&A] ultradj83:
Same problem here.

It's unbelievable how a simple Internet connection can be difficult...

It seems nobody is able to fix this.

This problem makes these units 50% unusable.

The only workaround seems to be PPP Widget, but it's not a nice way to work and doesn't start connection automatically on boot.

I will try to get PPP log to see what goes wrong and maybe try other rk3066 kernels praying for a miracle...
[MTCB Android Head Units Q&A] agentdr8:
Alternate media players can apply their own sound profiles/equalization even though the resulting sound still passes through the hardware amp (that has its own EQ).
[MTCB Android Head Units Q&A] ffwd4490:
I too was very disappointed in the sound quality, mostly the underpowered sound coming from my sub hooked up through the mono sub rca output. What I did was forget about the sub mono output and use the rear rca output for my sub and then split the front rca to power my four channel amp that powers the four speakers, used the separate gain controls on the amp to fade front and rear to my liking. The difference is night and day. I now once again have great sound in my van.
[MTCB Android Head Units Q&A] RyanBRZ:
So the front\rear RCA outputs are not terrible like the mono sub RCA output is? I only have 1 amp which is for my sub and it has built-in filters for low\subsonic so I can feed it a full-range signal. I think my next step is to amplify my highs as well since I don't think this unit will cut it.

I'm hoping at least a decent signal comes out of the front\rear RCA's so SQ will be salvageable with the addition of amps. 50x4 my a$$, the radio puts out crap.
[MTCB Android Head Units Q&A] antfros:
Thanks!! Is fantastic, work perfect (contacts, speed) , but in my headunit MCU GS the songs not change, can you solve this? :crying:

for more perfection, auto brightness dimmer in the next release is possible?.
[MTCB Android Head Units Q&A] ffwd4490:
I had a single din JVC unit before this with 3 full sets of rca outputs, the way i have it setup now, the sound to me is just as good as it used to be. I really think the big problem is with the mono sub rca out on this particular deck. My radio in this new unit still does not work, hopefully at some point someone will figure it out.
[MTCB Android Head Units Q&A] RyanBRZ:
Thanks for the info. I need to hunt down a 4-channel amp now and hope it clears everything up.

Is there anything else I can try to get my OBD2 USB dongle to work? I am running a Klyde unit on 4.4.4 MCU 2.12. I've tried reconnecting it, selecting USB and Bluetooth back and forth but it will not recognize it. It does work with my BT dongle but I prefer USB.

I have this one:
[MTCB Android Head Units Q&A] peti007:
I have Klyde unit and 4.4.4 Android+Poweramp. The sound quality is very far from excellent and far too from good. Sounds like if I listen to a very low bitrate MP3. I have no external amp. I asked before are the RCA(front and rear) outputs have a better sound quality as the speaker outs, but I haven't got exact answer. Some people said with RCAs sound quality is good, but some people said it for the speaker outputs too.

On the Russian forum there is something what could answer my question, but I have no account on 4pda.ru so I cant download the archive:

http://xdaforums.com/showpost.php?p=57766904&postcount=6586
[MTCB Android Head Units Q&A] Mquinteiro:
By now I can't use ppp widget, I don't know how to root my unit, it have no real power button, and haven't reset button. So... don't know how to go into recovery and didn't find a rom with root included.

Fortunately I let two usb port's in the glove compartment, so I can unplug the modem other thing is it looks that modem make an auto reset before a few minutes.

It's my first android radio and I have it since yesterday so I'm very noob. So all help and hints will be wellcome!!!

Best regards.
[MTCB Android Head Units Q&A] RyanBRZ:
Is anyone else out there using external amplifiers on all speakers instead of using the internal\speaker outs? I want to know that this will solve sound quality issues before investing in a 4-chan amp.
[MTCB Android Head Units Q&A] comptechltd:
Hi all,

I just got my Pumpkin KD-C0223 installed in my F250 and I have to say the sound is great. I am really happy with this unit. I am not a true audiophile but I have been super impressed with the quality of the sound coming from my speakers without an amp. I am also using poweramp.

I have an external bluetooth mic and according to my wife, the sound quality on the other end is not to bad. My only issue is there is an echo or a delay when the other person talks. In other words when the other person talks, they can hear themselves with a delay. She says it is super distracting. I am hoping a better mic can take care of it. Anybody got any idea's???

Steve
[MTCB Android Head Units Q&A] mikochu:
You're going to want the OBDLink SX cable. There was some talk a week or two ago about what drivers were installed and it seems that only the FTDI compatible driver is installed.
[MTCB Android Head Units Q&A] Karanso:
Bitte schön:

http://ul.to/8v5qv1t4
[MTCB Android Head Units Q&A] dark alex:
That's interesting! Had exact the same.

Sometimes no screen after booting (but touch worked and music played).

Sometimes I was able to see something bu after switching to reverse view camera and back lead to a black (off) screen again. Hardreset did not solve the issue. It staied off until the radio shut down by CAn for a longer time (longer than the standby time)

In Recovery I also did not have screen.

Screen switched on - if it worked - after booting. So bootlogo always was without screen.

Reflashed MCU only and now it works... Definitely a strange and probably critical issue. Think of damaged flash chips or sth...

We should stay with that and have a close look on how things go on here...
[MTCB Android Head Units Q&A] manicuspanicus:
Im using a 4 channel amp for my speakers and a 2 channel amp for my sub, professionally installed. Poweramp sounds very good. Also , as i already said, i noticed a small improvement on the sound coming from the radio under coudus 4.2 version but perhaps it is just me.
[MTCB Android Head Units Q&A] xrapidx:
to the guys having 3g issues, do you actually have the cellular strength icon in your task bar? I don't even have that.

Second - I'm looking for a Mcu (KGL - I have the universal) file to update with.... all the recent ones seem to be KGL4, and then v2.08 seems to be LZM?

Is KGL4 safe to use, and ho about LZM?
[MTCB Android Head Units Q&A] peti007:
Thanks, but you didn't use the pre-amp RCA outputs.

I'll try coudus 4.2 but I'm sure the sound quality is caused hardware but hope only the internal amp is sucks.

Danke schön!
[MTCB Android Head Units Q&A] xrapidx:
Considering I'm at the point of tossing this POS... I flashed KGL4 v2.09 to my unit, everything functioning as normal, no change in 3G, and now I'm struggling to get a GPS lock.

I have noticed if I unplug the 3g dongle, plug it into the same port, nothing. If I plug it into the flash port, it works.

Then, when the vehicle is switched on and off again, it no longer works in the flash port, if I take it out and plug it into the 3g port it works again.., until the unit is turned off,
[MTCB Android Head Units Q&A] manicuspanicus:
Dont know if this will help people with problems with 3g dongles...........................

Been using coudu 's v4.2 version (v4.1) before that and i have noticed that i see a lot if usb unmounting. Im loosing usb cam with no particular reason and sometimes it unmounts usb stick ( not 100% sure but sometimes it doesnt mount it at all , have to further check it).

perhaps it has something to do with the usb in general. Im using both the back ports that my unit has not the front one.
[MTCB Android Head Units Q&A] peti007:
Sorry you are right, I thought this Scosche TA07SR is an High/Low Level Converter. My fault and thanks for correct me! Looks I need to by an amplifier.
[MTCB Android Head Units Q&A] ultradj83:
Usually yes, but it's unstable or frozen...
[MTCB Android Head Units Q&A] staneb:
I have the same issue with back USB ports on my Klyde unit. USB stick gets unmounted randomly. Front USB works all the time, no issues. Don't have a 3g dongle to test it.
[MTCB Android Head Units Q&A] ultradj83:
I have no issues with USB, and using PPP Widget 3G never stops working.

To run a serious test I need to find the original MCU for my unit, it was MTCB-KGL-V2.01 and I can find it nowhere.

The only 2.01 in the repository didn't work...
[MTCB Android Head Units Q&A] xrapidx:
What do you mean its unstable? So far haf no issue. .. no crashes... only 3g not working properly.

Managed to get a GPS lock and its been fine since.
[MTCB Android Head Units Q&A] ultradj83:
I mean the signal is not always shown or sometimes it's shown but in the truth it's frozen.
[MTCB Android Head Units Q&A] typos1:
Klyde dont do RGB LEDs I m afraid.

---------- Post added at 12:49 PM ---------- Previous post was at 12:46 PM ----------

Post a link to your item so we know more details.

---------- Post added at 12:58 PM ---------- Previous post was at 12:49 PM ----------

Its 4x35 (TDA7383 amp IC on KLDs) not 4x50, but sound quality and power are 2 entirely separate things.

I m pretty happy with the sound of mine going through my factory amp/sub combo.

---------- Post added at 01:00 PM ---------- Previous post was at 12:58 PM ----------

Open your unit and check the aerial is connected and also check the aerial ground is connected, its been reported before that on or both cables were not, causing the radio not to work.
[MTCB Android Head Units Q&A] juliocohen:
Many thanks ultradj83, worked flawlessly! I rooted it, installed the Exposed framework and App Settings and tweaked the resolution, DPI and font settings and now its much better. A+!

Best Regards

Julio
[MTCB Android Head Units Q&A] typos1:
FYI the RCAs are 3V, I am using a factory sub with a box that drops down the amplified signal from the speaker wires and feeds it to the factory amp, ironically considering RCAs usually sound better than speaker outputs, this gave better sound quality than the RCAs, which were slightly muffled (this has been reported with other non OEM units on my car type with this factory amp). Because of the 3V RCA output, volume levels were not high enough as my factory amp needs at least 4V on the RCAs.

Your ll have to just try it yourself and see - there are 6 different types of headunits all with slightly different specs, factor in people's different opinions of what is and isnt good sound quality, that lots of people say their units sound good but some say the total opposite and your ll see that asking other people really is a waste of time.

---------- Post added at 01:15 PM ---------- Previous post was at 01:09 PM ----------

Forget about MCU v 2.01 !! Try all the others and use the one that works best !

---------- Post added at 01:18 PM ---------- Previous post was at 01:15 PM ----------

Coudu's 4.4.4 v2 based on a later 08/12/2014 build is out now, plus this updated Micorontek app here :

http://xdaforums.com/showpost.php?p=57796535&postcount=6648

may be worth trying them ? . . .
[MTCB Android Head Units Q&A] ultradj83:
Well, this was my original idea, but I found none perfectly working trying later versions.

The best one is 2.09, but back button acts as gps button, so I'm in difficult with some apps.

Do you know if it's possible to remap back button?

Do you think I should try elder MCUs?

Do you think this can affect 3G?

Do you know what's the difference between KGL and KGL2/KGL3/KGL4?

Thanks!
[MTCB Android Head Units Q&A] typos1:
You can remap buttons, in factory settings there are "keymap" settings, try that and as I said try ALL KGL MCUs and see which works best.
[MTCB Android Head Units Q&A] RyanBRZ:
Thanks for the input. Today was my first long drive since installing and I think my highs are actually decent once setting Loud to on and setting the eq under Amplifier in Settings.

My sub definitely does not have the kick it did with my factory radio. Someone recommended trying the front or rear RCA outs instead of the single RCA sub out which I have going to a Y splitter, or I can reconnect my MTX Re-Q LOC and get signal from the radio speaker outputs and see if it helps.
[MTCB Android Head Units Q&A] comptechltd:
How do you update just the MCU.IMG without updating the OS? I have a klyde with 2.12 and want to try 2.16.
[MTCB Android Head Units Q&A] obekende:
Hi, good questions! i have mcu v1.86 on my ES9746A ( KGL unit ) e mail sent to KGL to ask for when a new mcu for this unit and still not an answer, shame......

B, regards
[MTCB Android Head Units Q&A] xrapidx:
Boot into recovery, see OP. Then select update mcu.
[MTCB Android Head Units Q&A] dark alex:
We sorted this out about 100 times in this thread now. Please just read.

One last time:

Only place mcu.img (no update.img) on your GPS card and do an update via recovery.
[MTCB Android Head Units Q&A] peti007:
I downloaded and translated the readme. It is about to solder an IC to the motherboard what will control the sound settings (LOUD, EQ) instead the factory options. This have to program EEPROM so this is not my way. On 4pda.ru users say it improves sound quality. But because this is not modifying the internal amp I am confused about the RCA outputs can improve sound quality. :confused: