yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] ProfessorKnox:
Thanks a lot for the info! I will fix it - found an description how to do in post #5634.

BTW: Can someone tell me how to easily insert in a post a link to a specific other post (as above)? I didn't find a shortcut. I just did it by manually copying from another post and editing - but that's annoying. You can PM me in order not to fill this thread unnecessarily with off-topic. Thanks!
[MTCB Android Head Units Q&A] ultradj83:
I just got one more ES9610A for test usage, just the time to find a 230V to 12V/15A power adapter and I'll keep it at home for testing.

About speed volume (mind I'm not so expert in programming) in my opinion it should work like this:

1. Car runs at speed S1, that is in the volume range V1.

2. Car reaches speed S2, that is in the volume range V2.

2. Speed volume should start to change volume from V1 to V2, but slowly, so that it doesn't go crazy when speed rapidly goes up and down.

3A. If car keeps running at S2 it will reach and keep V2 but.

3B. If car backs to S1 it will start changing back, again slowly, down to V1.

3C. If car accelerates to S3, that is in range V3, speed volume will continue to increase slowly up to V3.

Programming should be easy, storing in a variable the target volume for current speed, but allowing, as example, a maximum rate of 1dB/sec.
[MTCB Android Head Units Q&A] typos1:
Well Toshiba is a more well known make than STmicroelectronics or NXP who make the internal amp on non Roadmaster versions, the other well known audio manufacturers also make audio ICs that may fit, research them and see what their THD figs are. There is a mod that allows Android to take control of the internal amp on 4pda.ru its been mentioned a few times on here too.

Why would using an external amp means you would have to keep your external BT kit ?
[MTCB Android Head Units Q&A] ftsur:
This looks VERY interesting!
[MTCB Android Head Units Q&A] psycosonic:
Hello Malaysk,

Great ROM! Thank you for this development.

I've been testing it and found some issues:

- When i change the boot image to a custom one, it reverts to the original "Android" animation.

- The BT OBD adapter(named OBDII) stopped working after upgrading to this ROM, it worked fine before.

Any help is appreciated!

Thanks and keep up the good work! ;)

BR,

MB
[MTCB Android Head Units Q&A] Malaysk:
1 After selecting the boot image restart after button reset.

2 My BT OBD adapter works fine

+++++++++++++++++++++++++++++

Made a mini review built into the firmware video recorder, January 30, (though the minimum bit rate set, so the video is not really work, but weighs 4 mb))

https://yadi.sk/i/L75t0sI5eN9hm ;)
[MTCB Android Head Units Q&A] MrRimmer:
With the greatest of respect, you don't seem to be understanding the problem here - the distortion appears to be generated BEFORE the power amp IC so changing that is going to make no difference. All amps of this nature are going to be limited in power output so there's little benefit to be gained by swapping the existing one out. As for company reputation, just because a manufacturer is more well known to some doiesn't make their products better. I prefer to look at the datasheets to see how a product performs THEN see how reliable the device is.

As I understand it, handsfree is handled by the BT module, so adding an external DAC and amp is only going to produce audio that Android generates. There needs to be a mix between Android audio and hands free. More circuits, more complication.
[MTCB Android Head Units Q&A] Malaysk:
MTCRadio3

Altered application of radio firmware 4.4.4 January 13, KLD only under the screen density of 180 dpi !!! Now shows correctly, but not compressed.

Screenshot made at 180 dpi

https://yadi.sk/d/IenKBAydeNBw3
[MTCB Android Head Units Q&A] idr3s:
Will this work on the KGL 4.4.4.

Where should i place the apk file?
[MTCB Android Head Units Q&A] Malaysk:
I have not tested it on the radio firmware KGL

To Root Explorer in System/app and remove therefrom MTCRadio3.apk or MTCRadio5.apk (after saving it to the sd card if vvam not like it, then it will be possible to restore) and then copy the file there, and then putting the file resolution 644. Reboot.
[MTCB Android Head Units Q&A] Us-Marshal:
I will skip the lecture about why this is probably a bad idea, but technically yes you can do it. You just have to provide power to your backup camera and 12v+ to the reversing wire on the deck and it will show backup video.

There has been some discussion about a switcher I built and 'diode isolating' wires so you don't unintentionally provide power to something. For example, if you have something like a wire from your backup lights connected to the reversing wire to use 'proper' backup function, you need to install a diode on this wire to prevent your backup lights from illuminating when you manually provide 12v+ to the reversing wire on the deck.

Not super complicated, just understand why and how and you can install a simple switch to turn on video at any time.
[MTCB Android Head Units Q&A] idr3s:
Tried copying to the app folder but i think its read-only so i cant paste abything there.. anyway to fix that. Im using ES file explorer btw
[MTCB Android Head Units Q&A] typos1:
I fully agree that a company's reputation DOES NOT make their products better, if I didnt, I wouldnt have bought one these these units - they are made by unknown manufacturers. I ve studied the data sheet of the TDA amp, but have not studied the Toshiba one. It was just a suggestion, trying to help.

I dont understand your comment about all amps of this nature being limited in power output - of course they are, theyre usually in the 4x40-50W range and if that was a problem then why buy a unit with a 4x45W amp with the intention of NOT using an external amp ? I didnt think power was the problem anyway, I thought it was distortion. And of course power output and sound quality are not necessarily connected.

As for BT and an external amp, is the distortion so bad on the phone with BT that you cant have a decent conversation ? If its ok then why not just use BT through the pre-outs and Android for music via the DAC/external amp ?

This is a rare problem, at least on this thread, only 2 people in a year reported it in a year. So, maybe pm the other person who did and ask what they did about it, return your item for another one of the same type, or from one of the other manufacturers who make them (there are 6) if you think it might be down to the design rather than a fault, ask Malaysk, Booroondook or Uncleg about the mod that allows Android to control the audio IC directly (they are all on the Russian forum as well, where that mod first appeared) or dismantle your unit to find and correct the problem.

---------- Post added at 03:12 PM ---------- Previous post was at 03:10 PM ----------

Unfortunately the review doesnt tell us much because most of us on here cant read Russian :(
[MTCB Android Head Units Q&A] Malaysk:
You're right, switch to English language settings and do a mini review :)
[MTCB Android Head Units Q&A] typos1:
Well mount it as RW then it will let you paste., assuming you have root access, if you dont you ll need to use a pre rooted ROM to get that (assuming youre not using 4.2.2).

---------- Post added at 03:26 PM ---------- Previous post was at 03:22 PM ----------

Lol, I did try your ROM a few months back and it was ok, but I didnt like the colour changes you made and I got an MTC error using it (think one other person has reported that), was thinking of trying it again, just would have been nice to see a review were I could read all the menus first, but I ll survive, I ll just have to flash it myself :)

I did like your power button in the top right, did you make it so when you first touch it the screen goes black on purpose so it can be used to turn just the screen off if you dont want to be distracted by it when driving ?
[MTCB Android Head Units Q&A] Malaysk:
I'll do a mini review. Yes, turn off the screen helps me at night and not distracting. And this is also a button to reboot, this is done as usual on Android phones ;)
[MTCB Android Head Units Q&A] typos1:
Yes, I know its for rebooting like on phones, but the screen would go blank if you touched it breifly and youd only get the boot options with a longer press, I thought it was a fault, but it wasnt until I read your reply to someone else a few weeks ago that I realised you might have done it to allow screen turn off, never thought to try it on my unit, probably cos I have a Klyde and on 4.2.2 the mute button would blank the screen when long pressed, since 4.4 they have stopped it.
[MTCB Android Head Units Q&A] nzdreamer55:
Hi everyone, Newbie questions here.

Just picked up a JY Unit and have some new user questions. Could someone point me to a source of how to use a car stereo like this? Here are some examples

1)How can I display on the radio screen the artist and song title that is streaming from my phone?

2)Can I use google maps for navigation with the map card if I don't have an internet connection?

3)Can I mirror my phone screen?

Sorry for hijacking the thread.

Thank you very much

-S
[MTCB Android Head Units Q&A] Us-Marshal:
Here's my results with the VX-5000

Track record: Shows live video fine but errors each time I try to record

Car Record: Shows live video and records fine

iOnRoad: Shows live video and takes snapshots fine. Note: the 'oem' version of this app complains that it is 'expired' if you run it while connected to the internet - then will not run again. The 'free' version on Play Store has video recording, but appears to be locked until you upgrade.

Conclusion: All my testing worked as expected except Track Record recording video. Not sure if anyone has different results with a different camera, but would like to know.
[MTCB Android Head Units Q&A] marco.lav:
I have a Micrisoft lifecam HD-3000

I downloaded the full version IOnRoad from BM.

He works well with in VCR comes standard on the UH

IOnRoad works, but I did not understand why not record well

Marco
[MTCB Android Head Units Q&A] Us-Marshal:
What is 'BM' for iOnRoad download?

Do you have Torque installed to test the 'Track Record' plugin?
[MTCB Android Head Units Q&A] marco.lav:
yes i have torque installed.

( when i have time try for you )

BT = BlackMart

is an app to download apps !!
[MTCB Android Head Units Q&A] typos1:
How do you find it copes with playing music, using sat nav and recording video all at the same time ?
[MTCB Android Head Units Q&A] marco.lav:
Ok ..;) My wife helped me to understand.

I wonder how it is possible that the stereo supports all these operations?

I do not know .. I did a stress test.

surely a record does not record but is a version vecchia.1.5.1

IonRoad and currently is at version 1.6.1, of which I have the full version.

I have just a bit of time, I try to put stress on the digestive and will let you know.

but first I have to figure out why not register.
[MTCB Android Head Units Q&A] comptechltd:
[MENTION=6124617]marco.lav[/MENTION],

When you soldered the WiFi antenna wires to the board, which wire did you solder to which connection?

Steve
[MTCB Android Head Units Q&A] ktibor69:
Which band (3 or 9) of the equalizer of the amplifier menu in this rooted JY firmware?
[MTCB Android Head Units Q&A] Boodro1:
I think this is what I've been looking for since I don't have a mute button to blank the screen while driving. The music still plays while the screen is blanked correct?
[MTCB Android Head Units Q&A] ktibor69:
I have this "problem" only one station in my area. I think this is not fail of the receiver.

I think the problem is: The RDS radio station on the 8 character place that allocation for service name broadcast not only service name character, but send the scrolling radiotext character to the 8 character place.

I think the stations use this solution, because many radio receivers not have radiotext decoder function. That who has only single RDS radio in his car, he can see the radiotext information by this solution.

---------- Post added at 08:17 PM ---------- Previous post was at 08:05 PM ----------

I think from the past the 3 band 4.2.2 has more low frequency (bass) sound like 9 band 4.4.4. Do I remember good?
[MTCB Android Head Units Q&A] Malaysk:
Yes. The firmware is also possible to include a large skrinsever hours.
[MTCB Android Head Units Q&A] ktibor69:
I'm interesting too for answer for this great question?
[MTCB Android Head Units Q&A] jjdemu:
Thank You jkchr1s that was the problem feels nice to actually change it again.
[MTCB Android Head Units Q&A] typos1:
I dont think he d know as he recently got his unit so it will be on KK, it was on JB that these units had a 3 band equaliser.

I also dont think the sound is any different with the "9 band" equaliser compared with the 3, they havent changed anything in the hardware, just put 6 extar fake sliders in there, pointless.
[MTCB Android Head Units Q&A] ktibor69:
What can I edit in the sys.txt of iGo app, that it works in backround continously?
[MTCB Android Head Units Q&A] zorantoma:
Put this lines in sys.txt

[gps]

location_gps=1

port=2

baud=9600

accuracy_workaround=1

background_navigation=1

But you have to be on a 4.4.4 base and you have to instal Igo spacial for KitKat
[MTCB Android Head Units Q&A] marco.lav:
in first photo .. u can see a black wire.. ( and a little glue )

remove black Wire.. and solder the central of new coaxial cable.

on left side ( opposite at bt Module ) must be soldered the ground of coaxial cable.

i'm here if you need help

---------- Post added at 08:27 PM ---------- Previous post was at 08:23 PM ----------

we create a very large group and "break the boxes" at the producers of UH

only if we are many, they fix this problem, which I think could be even software.

or fix old products, with some software update,

or do negative publicity of their products.
[MTCB Android Head Units Q&A] Us-Marshal:
Is there a good way to backup my complete un-rooted install of 4.4.4 before installing rooted img? I see some mention of using Android SDK, but not sure that's workable for me.
[MTCB Android Head Units Q&A] ultradj83:
Dear, when the new layout is applied is it still possible to revert to stock firmware in case of need, as example for RMA?

Will in this case the original layout be restored?

Thanks a lot.
[MTCB Android Head Units Q&A] ktibor69:
Thanks,I edited the sys. I will try tomorrow.:fingers-crossed:

---------- Post added at 10:05 PM ---------- Previous post was at 09:57 PM ----------

I would like to know, that the 3 and 9 band equaliser witch frequencies, and how gain +-dB modify?
[MTCB Android Head Units Q&A] typos1:
Sorry, I dont understand what you mean.
[MTCB Android Head Units Q&A] OneCheekyDevil:
Would someone be able to do a few tests for me?

Test 1 - Before switching off your car, start the radio app, wait a few seconds for it to tune to your station, and then switch off your car without exiting the radio app. Wait a good 30 seconds for the unit to fully shut down, and then start your car again and wait a full minute after the unit has booted up.

My Result 1 - Unit boots up straight into the radio app (duh), BUT, SDVC doesn't start, and reverse cam shows no signal. IF i exit the radio app, SDVC starts after 30 seconds, but still no reverse cam.

Test 2 - Before switching off your car, exit the radio app with back button, exit all backround apps and switch off car. Wait a good 30 seconds for unit to fully shut down, and then start your car again.

My Result 2 - Unit boots to launcher and 30 seconds later, SDVC starts. Reverse camera works as normal.

I have a KGL unit running coudu's latest KLD 4.4.4 ROM, and i have the latest install-recovery.sh file (not sure if it's working correctly).
[MTCB Android Head Units Q&A] TooBusy:
I tested Car Recorder with Microsoft LifeCam HD-3000. The resolution was 640x480, it cannot be changed. The video quality was poor and the recording stops every few seconds (about 7) for about a second.

I then tested the same cam with DailyRoads Voyager. It didn't record until I changed the recording video resolution to 640x480. No stops during the recording, but the video quality was still the same - poor.

Rightly or wrongly, I concluded that these HUs have a limit - can only record at 640x480, so I bought a dedicated dash cam.

I haven't tried Track Recorder(Torque OBD-Car), but if you can set the video resolution, try 640x480, it might work, and then decide if that's good enough.
[MTCB Android Head Units Q&A] R4D3N:
Or you can try: https://play.google.com/store/apps/details?id=diewland.settings.mobilenetworks
[MTCB Android Head Units Q&A] TooBusy:
I've tried that. It doesn't work. Neither does Mobile Networks nor Change APN. All the same thing. After you create a profile, you can't save it.
[MTCB Android Head Units Q&A] Malaysk:
Yes, after you install the factory firmware also need to do a factory reset
[MTCB Android Head Units Q&A] ProfessorKnox:
[MENTION=6124617]marco.lav[/MENTION]: There's a second soldering point for another WiFi antenna left hand side from the soldering point you used, right? Maybe the module is even capable for diversity (second antenna) reception?
[MTCB Android Head Units Q&A] R4D3N:
On my unit works (Android 4.4.4 Coudu , for BMW E46, 1024x600 screen,) :)
[MTCB Android Head Units Q&A] typos1:
Which type, KGL, KLD, RM, GS, JY, MD, YZ ?
[MTCB Android Head Units Q&A] BrownHP800:
My radio does the exact same thing. From my understanding it is the way the radio station broadcasts RDS. Where it is scrolling in the preset buttons, the real rds spec is that they are supposed to broadcast their station name or ID. But at least here in North Carolina, they scroll the whole RDS info instead of just the first 8 digits for station name. I agree it is very irritating. That is the only thing I do not like about this radio. If you turn RDS off, it will just show the frequency in the presets but obviously not show any RDS info. It will probably take someone who is much smarter than I am to make a new radio.apk to *fix* that issue. Technically it is not a problem with the radio.
[MTCB Android Head Units Q&A] theoreticaljerk:
Been having an issue...it's probably 4.4.2 related but want to be sure.

When the radio boots up, it does not consistently connect to my phone via bluetooth. I'd say maybe 40% of the time I have to go into the bluetooth app and tell it to connect.

Additionally, sometimes the phone will be connected, I will place a call...then when I hang up the call the bluetooth will disconnect from the phone until I manually reconnect it.
[MTCB Android Head Units Q&A] RyanBRZ:
Just got a bill from FedEx for customs charges for what eonon.com advertised as free shipping 2 months ago. Wtf. Searching the net, someone on BMW boards posted the same thing this morning.
[MTCB Android Head Units Q&A] nkt75:
Are all satisfied with FM radio quality? Reciever quality is terrible! Any 1din cassette radio sounds better. What can we do with this?
[MTCB Android Head Units Q&A] typos1:
Most people report that it sounds ok, so maybe it is your aerial ? Get a better one or fit a booster ?

Do you mean youve made the old one work on the new ROM ? Or do you mean youve managed to modify the new radio.apk ? I ask because someone reported that the new radio stores station names and I want this, but I d like to be able to mod the apk a little like you have.
[MTCB Android Head Units Q&A] 1-2-Hak:
I agree but if I want to listen to good music I listen to either Streaming digital radio or mp3 stored on the many many many options available on this unit.
[MTCB Android Head Units Q&A] pakidermo5000:
Thanks. I would like to do it myself to learn. Which xposed module do I need to change that ?

If you give me a hint (example) of what graphics (files) need to be changed, I can try something. I am not a graphic designer myself, but it would be good to have various "radio fascias".

no need for IOIO. Just a regular delayed switch would do it. it is actually very easy ( i have a copy of the circuit at home, but there are thousands if you google it). All the radios have a continuous 12V. We just need to take it and tap it to the ACC one. When ACC is off it will trigger the count down. It is a circuit that costs roughly 10eur.

My concern is, how would the unit know that it must be in stand by when you turn off the car? Since IOIO or the dealyed swithc will power 12V to ACC.

To put it simple. The unit has an internal delayed turn off that is activated when ACC goes to 0V. During this delay, the unit is in standby. If we artificially keep the unit on, by keeping 12V in the radio ACC, it will not get into its "stand by " mode until it detects that ACC is really off. I think the best option is to modify the internal stand by mode of the unit.

Feed for thought: I am starting to be convinced that the stand by mode is software controlled. I do not really know how the power off process works, but it must be controlled otherwise the system would crash. I think the sequence is like this:

- ACC is off, the unit detects that (probalby MCU) and turns screen off, and pauses music, but stays on in stand by (probably the internal delayed switch does it). Then, when the stand by period is off, android really shuts down (probalby MCU is doing it too). If we can get this call for android to shut down and delay it n seconds, we will be able to adjust it.

Is it possible to tweak android power off trigger method and include a delay ?
[MTCB Android Head Units Q&A] pakidermo5000:
Agree.

My FM reception s*cks. I tried with and without antenna, and the difference is not much. Also the quality of FM sound s*cks.
[MTCB Android Head Units Q&A] booroondook:
Is there any way to eliminate reducing of music/video/radio sound volume when navigation program works?

GPS Settings don't resolve this problem.
[MTCB Android Head Units Q&A] sciallo:
That's why you would need something like the IOIO, not just a delay timer. The IOIO would sense ACC state on an input, COMMUNICATE THAT with an android app that would trigger things like screen off/on, play/pause and as much more as programmatically possible (eg. Amps on/off) AND control a relay that initiates a clean shutdown after delay is over by cutting power to the ACC wire to the unit....

Standby is software controlled, but at the MCU level, not an android program. It handles not only things on android (like pause music) but also outside of android (cut power to p.ant and p.contr antenna and ext. amps wires, shut off internal amp, and bluetooth board)

The sad thing is that the MCU is perfectly equipped to handle that, it would be a relatively simple mcu programming mod to implement it if the manufacturer wanted to. (Or if the right programmer had sources)...
[MTCB Android Head Units Q&A] avantissimo:
Greetings to all, i be new user here, even if you know this forum for years, and i want to say that you are mythical. Since program for music mp3 of the radio be ugly, because that is not able to display cover, divide artists for folder or genre, and do not have random play, i have installed above program for use with player pro. All work, except forward and back buttons to the steering wheel. My car be Audi A4 years 2006.

Unfortunately, I do not speak english, so I apologize if not be understandable that it was written. Thanks to all.
[MTCB Android Head Units Q&A] KeiserSozeyFr:
Does the steering wheel buttons work with the original applications (music, radio, ...) ?
[MTCB Android Head Units Q&A] avantissimo:
yes
[MTCB Android Head Units Q&A] pakidermo5000:
THanks ! Managed to activate Loud. But, tried to install your Radio app, Neither the ¨normal¨ way nor adb works, there must be problems with the certificates. Or I am doing something wrong.

Adb error:

INSTALL_PARSE_FAILED_NO_CERTIFICATES

PS: I decompiled my MTCRadio.apk and figured out what images I have to modify so as to have a new Radio layout. I will try to come up with something... will be my first mod :)