yashsingh1/xdaforums huggingface dataset:
[MTCD Android Head Units General] aeonfluxcapacitor:
[MENTION=8148567]Z@ffy[/MENTION], thanks for that update! I'm leaving for an 8 day vacation shortly and was starting to worry about this. Glad to hear :)
[MTCD Android Head Units General] typos1:
As I keep saying, I m fully aware of the "problem" as I have done it on many Audis with Bose !! And other cars with the same set up including my own !!

The solution you have chosen will work, but the sound will still not be optimum because the PAC is taking an amplified signal and "un-amplifying" it (basically it just puts the output through some resistors). I bought one myself, its ok but still not that good, I returned it and used a line driver to amplify the Klyde headunit's (I have a Klyde as well) RCA signal which was a little too low, this gave much better sound but wasnt quite loud enough at higher volumes. I then did [MENTION=322215]7floor[/MENTION]'s sound mod which enabled me to do away with the line driver as I can now adjust the pre-out of the RCAs from his app.

So, its up to you - you have someone with a lot more experience with Bose on Audis and other cars than you, who has the same headunit as you and the same Bose set up as you, offering you free help, I just need some pictures of how youve wired it up.

You can either continue to tell me that, despite my experience I m wrong, or try and see if I can help . . .
[MTCD Android Head Units General] ab1702:
I'm not saying you're wrong I'm saying I don't need you to show me how to set it up as I'm quite competent with all that, I know perfectly fine because of my job how things connect and how signals work and interfere etc. I'm just trying to find exactly what I need to sort this difference between the amp and the headunit.

It's got no extra adaptors or anything installed at the minute that didn't come with the headunit and it's working almost perfectly it's just got the smallest bit of alternator whine which can't be heard at all when the volume is on and the bass is not as good as it were with the stock head unit but there is bass there it just needs improving. I've been in a friend of mines audi and he has a stock unit and the notice in bass is definately noticeable.

If I'm going off your advice then I obviously need a line driver to increase signal to the amp which I suppose does make sense if I'm lacking bass.

Also what is this mod and app you refer to?
[MTCD Android Head Units General] typos1:
I really dont think you understand my advice at all - you would only MAYBE need a line driver if, once the amp is getting low level signals, its not quite loud enough, I thought you said this previously :

As I ve said, this is TOTALLY incorrect - these units have proper RCA outs with a lower signal and the installer you spoke to who said otherwise is just plain wrong.

This post also indicated that you have too much power, as though the speaker outs were connected to the amp and not the RCAs, but your post above says your only problems are some interference and not enough bass, the advice I have given so far relates to having too much power for the amp , but now it appears that your problem is just that you dont have enough bass and some interference, which suggests that the problem is not what you said initially.

In which case your problem is that the 3V signal on your RCAs is, as I suggested earlier, not quite enough for the Bose amp, this means that the PAC will be useless as it cannot amplify the signal enough and you do indeed need a line driver. The Split 3003 is the one I bought in the end as it was a decent price.

[MENTION=322215]7floor[/MENTION]'s sound mod is the the Hardware Modification section of the MTCB forum, it also works on MTCD/E units, it requires some basic soldering but it is very definitely worth it, as not only do you not need a line driver, it gives better sound quality.
[MTCD Android Head Units General] ab1702:
That's interesting that you say the output of the rcas is 3v as I did wonder.

If I have to get a line driver then fair enough but would the PAC device that I referred to not do the same thing as it is adjustable and it says it can give out upto 8v?

That mod does sound very good but I don't have a soldering iron and I couldn't be bothered messing about opening the unit up.
[MTCD Android Head Units General] typos1:
I ve already answered this question several times !
[MTCD Android Head Units General] Danno1975:
Quick question, from searching here it seems my KGL has the latest software for of v2.56_5. And it all works fine. As a novice can someone confirm that my understanding is correct.

The noted updates are for the rom?, this is the MCU? And the chineseiest bit, ie the bit that all the car software is on, I can either leave as it, update with oem as updates come along or replace it with one of the guys on here’s modded Roms?.

If I do a modded Rom is this going to improve the radio Bluetooth management and general back end stuff?.

Then ontop of that I have the Android software, ie Marshmallow?.

My current theme is I assume part of the Rom?.

Is this correct?.

And also I noted someone asked why the octacore can’t have android 7 and another user noted 8 is coming.

But how would we know if 8 will run nicely on our units?. When it’s noted as “coming” where’s is coming from? can I not just download it and get it running whenever?.

Sorry, new to these head units and new to android. Getting to grips with it.

Just more used to the greater certainty of Apple (though definitely tempted to jump ship at upgrade).

Cheers
[MTCD Android Head Units General] typos1:
I very much doubt that 2.56 is the latest MCU, pretty sure there are later MTCE MCUs available now (MTCE is the latest version of MTCD).

Its best practise to have an up to date MCU, but you can leave it and run older MCUs with newer ROMs, although some functionality might be lost.

What do you mean by "improve Bluetooth" ? Cusotm ROMs usually have more features and have bugs smoothed out.

Yes, there are 2 parts to the software, the MCU and the ROM, the ROM is MarshMallow currently but Oreo is in development, you heard right. Theres no reason to assume that Oreo wont "run nicely on our units", we can only wait and see, there may be some bugs.

What do you mean by "theme" ?

Yes, there is more "certainty" with Apple, but thats cos its closed source and they control EVERYTHING, the user has very little control . . . after parting with loads of £$£$£ (very little of which goes to pay any taxes). Not that they make anything like these great devices, even if they do need some last minute bugs ironed out by the community. If they did make similar devices I m sure theyd be 4 or 5 times the cost. Google (not perfect when it comes to paying taxes either) base their OS on Linux, which means it HAS to be open source, which is one of the reasons that these devices are relatively cheap.
[MTCD Android Head Units General] Danno1975:
Ok so I should update my MCU to the latest MTCE (I’ll have a search).

And the modded Rom has a actually a modded Android app?

Is this what you mean?. So the Malsysk Roms are not the MCU software? But are actually modded versions of android ?

So does the radio app, reverse camera etc. sit in the MCU software or the Android Rom?.

What do you mean by "theme" ?

Best way to describe is that all the various units are android but all have a different look, ie mine has Apple style icons and a pretty similar to my android phone UI whereas other units have totally different icons, ie my Bluetooth app for phone has an iPhone style phone icon but another guy on here’s icon is a Bluetooth logo even though the app is the same. Xtrons UI looks totally non android.

Re the improve Bluetooth, I refer to the fiddly way to connect devices through the phone app/Bluetooth app rather than in system settings and the way it will work with an iPhone as phone and elm327 OBDII for a few starts and then crap out either the OBDII or phone generally the phone leaving you on the motorway with the phone ringing and the app connects to an OBDII dongle only [emoji23]. And it’s a bit crackly my end.
[MTCD Android Head Units General] Danno1975:
Ps, also I’m struggling to locate any newer version of my MCU?, in the thread the links at the top are a year old and searchings not turning anything up?.
[MTCD Android Head Units General] jaixon:
Connection of RCA reverse camera to Dasaita head unit

Hi,

Do you guys know how the RCA cable from the Rear-view camera connects to the Dasaita V600 (PX5) head unit? I have the yellow video in cable with the red trigger wire that needs to be connected up front but on the pictures, I don't see anywhere I could join the red wire to? any ideas?
[MTCD Android Head Units General] leecox:
The head unit has a reverse wire that needs to be connected to your 12v reverse signal for the backup lights. You'll need your vehicle wiring diagram to find that.

If the trigger wire goes to the camera you can connect it at the rear to the same 12v reverse circuit. No need to run it to the front of the car unless your having issues locating the reverse circuit. If you are having trouble, splice the wire in the rear to the backup light then feed it to the front to the head unit's reverse wire.

On my wiring harness for the head unit the reverse wire was orange. Also the pigtail for the AV out had the backup camera RCA connection.
[MTCD Android Head Units General] jaixon:
Thank You!!

Awesome! Thanks for the info leecox..
[MTCD Android Head Units General] catu:
My GS unit stopped working yesterday. The screen doesnt turn on. If i hold the reset (I have a unit with no buttons) I can see it restarting, but i only get some lines down the display. When I put car in reverse i can se the screen flicker, like its switching views, but nothing happens. Will it help to try and pull it out, and cut the power for a while?
[MTCD Android Head Units General] jaixon:
Bluetooth tethering

Is it possible to share/tether internet from my phone (S8+) via Bluetooth with a PX5 head Unit?
[MTCD Android Head Units General] Bose321:
Just create a Wi-Fi hotspot, much easier I think.
[MTCD Android Head Units General] typos1:
Depends what ROM youre talking about, some have modified apps.

The ROM and the MCU are TOTALLY separate. ROM stands for Read Only Memory, on all computers its the bit of the hard drive that contains the OS. An MCU is a Micro Controller Unit, these head units are basically a car stereo with an Android tablet mounted inside, the amp, DVD, radio and BT are all car stereo, the rest is all Android, the MCU is how they communicate. All the apps are in the ROM, the radio, dvd, BT etc are all MCU controlled, but viewed and operated through Android. The MCU in MTCD units is a 32bit device made by STMicroelectronics, which is actually a European company with factories all over the world, it makes many electronic parts including, most probably parts, used on your car.

These units all have the same "theme" thats what makes them MTC, the only thing that is changed for some manufacturers is the launcher, if yours has Apple style icons then you have a KGL (Kai Ge Le) unit. Some manufacturers use a BT icon for BT, some use a phone, the launchers are all interchangeable. There are no Xtrons UI or themes - Xtrons is a seller not a manufacturer.

Never heard anyone complain about connecting phones via the phone app, I think its ok.

As for using BT for OBD - its slower and less secure than USB and BT was designed for mobile devices, neither the car stereo or the car engine are mobile so I cant see the point of using BT for OBD. but if you must, its usually perfectly reliable once connected as long as it has the correct name. I was part of the convo you had with another user about it the other day. I ve never heard of those problems with BT and OBD. Have you searched all the threads in the MTCD forum about BT and OBD ?
[MTCD Android Head Units General] Danno1975:
Cheers, very useful thanks.

So what’s stopping anyone installing Oreo?. Where would you be able to reload all the car related apps?. Such as the radio reverse camera etc?.

I’m actually pleased with mine but was originally after a 7.1 because I liked the idea of the ability to run dual apps.

But thought I’d get more performance out of the PX5 with its larger Rom.

Funny actually the only thing I have a problem with is the google apps, maps and mail. Bit unreliable so I don’t use the mails and don’t need to use mail. They just keep stopping.

---------- Post added at 01:11 AM ---------- Previous post was at 01:08 AM ----------

Oh and ps the BT OBDII issue was odd, managed to get it paired and it worked fine alongside the phone for two journeys and then messed up again on the way home, phone rang but was no longer paired ?.
[MTCD Android Head Units General] typos1:
The fact that Oreo isnt out for these units yet is the main thing stopping people installing it !

All the car related apps come in the ROM, custom or stock, theyre all still there.

For split screen you ll have to wait for Oreo, the RK3368/PX5 has better performance cos it has twice as many cores, the size of the ROM doesnt effect performance.

For your Gapps, BT and Gmaps problems search the MTCD forum, there are 4 other threads on RK3368/PX5 units.
[MTCD Android Head Units General] djbubbbbbz:
problem

I seem to have the same problem with my google maps and evan in android auto, iv noticed the maps launch it it and leave it for a minute and it seems to work fine, but when launched and you input address then just error and stops working. sygic seems to work fine which works offline has speed cameras also, and when hotspot connected it does traffic notifications does work
[MTCD Android Head Units General] tmiller101:
I used the tail light power for my camera and it works fine on my 2012 Jetta. On a seperate note, I ran a 12 volt line from the HU to the camera with a switch in the middle, so I can turn it on whenever I want.

But if you have a multimeter you can check the power on the lines in the back of the HU. There is one line that goes hot, receives 12volts, when the car is put in reverse. It was orange on my unit. It was clearly marked. You can definitely run a hot line to the camera from it.
[MTCD Android Head Units General] Danno1975:
I recall a post that suggested rolling back to a previous version of google to address but I can be bothered. It’s great if it works, my son likes it telling us we are home with a google street view image, or that we are at the DIY store etc.

But for reliability reasons I just use Waze now. And I don’t really need Email on the head unit as I have my iPhone.

---------- Post added at 07:16 PM ---------- Previous post was at 07:05 PM ----------

When you say not out yet for these units you mean someone is going to be sorting a version?,?ie KGL JY etc?.

Oreo is already isn’t out isn’t it so who will make it available for the Head units?.

I wouldn’t think that the radio and phone apps are part of Oreos stock set up from google? So it must need to come from a head unit manufacturer?.

And why do the latest 8 core units only run 6 and not 7 as per the older quad core units?.

Tah :)
[MTCD Android Head Units General] ab1702:
Does anyone know if the google apps are part of the ROM or the mcu, I'm guessing the ROM. Since I updated to a GS rom and also updated my KGL mcu at the same time my pico TTS doesn't work properly and keeps saying it has to close and I use that for the speech on my sat nav so something needs updating and I'm hoping it's the ROM.
[MTCD Android Head Units General] typos1:
Gapps are entirely separate from the MCU.

---------- Post added at 10:30 AM ---------- Previous post was at 10:24 AM ----------

The company that does the software for all units (HCT) is working on Oreo, its out, yes but it has to be made to work with these units.

Yes the stock MCU related apps are from HCT., nothing to do with google.

When the octacore units came out they came with Marshmallow, the quadcore units with Nougat are newer than the octacore units - the processor is the same as the 1Gb Lollipop quadcore units but with 2Gb RAM, HDMI out - a redesigned Android board basically - these came out after the octacore units which is why they have a newer OS. Nougat was being worked on for the octacore units but then Oreo came out and as Oreo is quite similar to Nougat the devs decided to go straight to Oreo.
[MTCD Android Head Units General] janusz12561@gmail.com:
How to turn on keyboard backlighting?
[MTCD Android Head Units General] pakoner:
Hello to all...

Has anyone seen this new xtrons update?

http://xtrons.co.uk/te103p-10-1-oct...m-hd-digital-touch-screen-car-dvd-player.html
[MTCD Android Head Units General] typos1:
You mean the 4Gb RAM models ? Theyve been out for a month or so, got one on order, hopefully the ROM will work on all RK3368/PX5 units.
[MTCD Android Head Units General] pakoner:
Yes, 4gb RAM

From what I know is always PX5 with MCU GS
[MTCD Android Head Units General] ZeligPC:
Mmm... 4GB of RAM sounds good, but - in my 2GB unit - when I check RAM usage under setting, it seems that it never uses more than one...
[MTCD Android Head Units General] typos1:
I guess it depends how many apps you use at once - the Lollipop quadcores are slow because of the lack of RAM, often needing more than the 1Gb they have. I think 4Gb RAM would kind of future proof these units against being slow with later versions of Android. Anyway if 2Gb RK3368/PX5 owners ever needed more RAM they can always add it later.
[MTCD Android Head Units General] Mau2012sim:
Can you please explain how?
[MTCD Android Head Units General] ZeligPC:
I did many tests opening a lot of heavy apps at the same time (Chrome, Maps, You Tube, music player and so on), but the RAM usage report always indicates 1 GB used, maybe 1.1, never more. :eek:
[MTCD Android Head Units General] typos1:
How what ? To add more RAM ? Buy it and solder it on, there are a few threads in the forum and in the MTCB forum (MTCB/C & MTCD/E units share processors and RAM).
[MTCD Android Head Units General] justice4eire:
Witson 5.1 KIA CeeD

Hi guys

I have a Witson brand Head unit it works fine but lots of software hangs as of late, its based on the Rockchip 3188 chip 1GB RAM 16GB Nand - I have contacted Witson and they have given my an update file just one file to try and resolve my software issues but I want to try and upgrade the headunit, They said I can get the PX3 core board and install that as it has more RAM and Android 7.1 but I would much prefer the PX5 octa core chip, My question is simple can I buy the PX5 and install that or is the logic board limited to the PX3?

Thanks lads.
[MTCD Android Head Units General] typos1:
You can buy either board and upgrade your unit.
[MTCD Android Head Units General] justice4eire:
You Sir are a Gent :) So I can just buy the octa core version thats awesome news, Now I just need to find out how to upgrade that to 7.1 but going to order the new board now :)
[MTCD Android Head Units General] typos1:
You cant upgrade it to 7.1.1. (unless youre a dev).

Oreo is being worked on though.
[MTCD Android Head Units General] justice4eire:
HAHAHA I'm no Dev when it comes to Android... but just ordered my new board since its coming from China I'll have it in about 3 weeks cant wait for it :) :fingers-crossed:
[MTCD Android Head Units General] justice4eire:
Also on a side note, I contacted Witson about my HU its running 5.1.1 and its having software hangs the past 6 months and have to hard reboot the device when it locks up they send me software to update the system but it keeps failing about 30% in stating its the wrong image file, the file name is dupdate and the folder it was in was called New4_rk3188_5.1(20171025）- I had the SD card in the GPS slot as advised and still its a no go

:( any body know where I can get the most recent update for the HU to get around some of the bugs I'm having until my PX5 comes in about 4 weeks

cheers
[MTCD Android Head Units General] ikerg:
Wrong thread...ask for it on MTCD rk3188 thread or on the dasaita updates thread.

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[MTCD Android Head Units General] typos1:
Install [MENTION=5092263]Hal9k_[/MENTION]'s RK3188/PX3 ROM.

Hes just released a Nougat version as well, think its mentioned in a Dasaita thread.
[MTCD Android Head Units General] Antoz1103:
Hey guys i bought for my Opel Insignia an Kunfine Radio. it has the PX5 in the name. So i want to flash the Malaysk rom. But i have one question. What have i to do to improve my Radio tuner? i always have bad Radio Signal. Sometimes it works good. I have an Antenna Cable sold with the Radio unit and there is an Blue Cable on with Ant sign on it. Where do i have to plug this Cable? Because i think my Antenna need Power from Battery. THX 4 Help. And what is the unlock code? i want to change the Logo on the unit. Thx
[MTCD Android Head Units General] ikerg:
Try the code 126 or m126

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[MTCD Android Head Units General] Antoz1103:
Thx it worked with that code. Can i only flash the malaysk rom? I have the mtcd px5. Do i have to look at more? And what can i do to habe better radio signal? I have not wired the blue ant cable on the antennaadapter who was with the radio.
[MTCD Android Head Units General] norekm:
You need to connect the power to the antenna
[MTCD Android Head Units General] justice4eire:
Hi mate, I had that issue you had on my KIA Cee'D and had to buy a power amplified Fakra cable to generic radio adapter and that fixed my radio signal you just connect the power cable from the Aerial to the blue cable labeled "ANT" on the HU and that will fix your issue :)
[MTCD Android Head Units General] Antoz1103:
Thx i will try it with the adapter which came with the radio. There is a blue cable. On the radio i only have a blue cabel labelt with amp ctrl can i hook it to that one too?

---------- Post added at 11:57 AM ---------- Previous post was at 11:16 AM ----------

Ah **** i forgot. does my Flexride work? Or is that only on the Original Radio unit that u can adjust the settings what the car should do when u push Sport or Tour.

I only want to know if these buttons work with the Radio unit.
[MTCD Android Head Units General] typos1:
Kunfine are a seller, to see what device you have go to settings/about device the letters after "MTCD" or "MTCE" will tell you what device you have.

Malaysk's is currently the only custom ROM for these units.

Your OEM antenna will come with a booster and the OEM head unit will inject power into the antenna line to power it, this new head unit wont do that, what you need is a power injector that should be connected to the "antenna" wire on your unit (you can use the "amp" wire if you dont have one). hopefully your seller would have provided a power injector if not your ll have to buy one, they very cheap.

Whether you can control your flex ride via this head unit is entirely dependent on whether the developers have provided support for it, look for apps called "car settings" or "control settings" or similar, hopefully theyve included this functionality . . .
[MTCD Android Head Units General] newell63:
Hello everyone.

That's a huge thread to read....

But i finaly no found my answers...

Can you help me please, i would like buy a PX5 model but which brand is the best ? There is so much !

And can someone tell me if the RDS-AF is working with last update or malaysk rom ?

It will be nice to know and for choose a model.

Thanks everyone !
[MTCD Android Head Units General] ikerg:
There are many manufacturers with the same hardware...But not all make for specific car brand/models.

First check if you need universal 2din or specific car/brand/model head unit and check on aliexpress/ebay about which manufacturers make it....then your list will be reduced to some....and then I would choose that manufacturer that provide more support.

In my case. I am happy with the support given by Dasaita (hot-audio HA) as they are constantly publishing updates here on sea forums...But probably other users may have other preferences...

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