yashsingh1/xdaforums huggingface dataset:
[MTCD Android Head Units General] OnkelDeffe:
One question about MCU update: As I understand the MCU is controlling the hardware of the HU and used as a bridge for the android operating system. When I upgrade to px5 I automatically update from android 5 to android 6. Do I have to install another MCU version? Problem is, that my xtrons uses a HCZ MCU and I did not find any info about it. As stated in other posts the new px5 unit can go into deep sleep mode with less power consumption but very fast startup. In my current MCU settings I can define a power off delay up to 2 hours max.

Thx in advance

OD
[MTCD Android Head Units General] techo91:
No need to install another. It should work fine with the one already installed.
[MTCD Android Head Units General] nixfu:
I got my board today from Bob, and put it into my Joying MTCD. It went in fine except I had to remove the middle screw for the heatsink on the bottom of the PX5 board because the PX3 board had a hole there for a screw to go through the board and there was a standoff under there that was bumping on that heatsink screw and keeping the board from being pressed all the way in. The new PX5 board only has two mounting holes to screw it in the PCB.

But, other than that it seems to be fine.

Now I have a franken-px5-joying-MTCD. I don't even think joying makes a MTCD with a px5 in it, they seem to have skipped the PX5 and gone with the Intel Sofia only, so choosing MCU firmware for this will be interesting. Oh well it works now so far with the last MCU update for the Joying PX3 MTCD unit, so I might not ever bother to update the MCU, or I will just keep trying whatever MCU updates come out for that model.

What is really funny is that this head unit actually started out as a MTCB device, but I got the $100 Joying upgrade to MTCD about 18 months ago, which swapped the mainboard out but reused the rest of the system, and now I have swapped out the processor board on this already upgraded head unit to the PX5.

I have gotten my a lot of life out of this head unit through two different upgrades.

I always said if someone in china, REALLY wanted to make some money, they would sell all of us enthusiasts upgrade and replacement parts such as boards, SOM's, screens, digitizers, etc.

Now, its time to put Malaysk's firmware on it. :)
[MTCD Android Head Units General] typos1:
Dont worry - the MCU firmware is the same for ALL SoMs and MTC units, so go ahead and update.
[MTCD Android Head Units General] enes67:
The following seller has the chip to upgrade from PX3 to PX5 for $40:

The page Aliexpress is not available, please renew the link please
[MTCD Android Head Units General] kasall7:
PX5 board or only processor for 40$

---------- Post added at 03:05 PM ---------- Previous post was at 03:01 PM ----------

PX5 board or only processor is for 40$
[MTCD Android Head Units General] typos1:
Its an old link, the only one available now is from Witson for $120 approx.
[MTCD Android Head Units General] marchnz:
Are you saying MCU or Android firmware can be applied across MTC units? My understanding is that in some cases the MCU may, but not all.

---------- Post added at 08:33 AM ---------- Previous post was at 08:24 AM ----------

No - again, this is MTCD, BT is controlled by the MCU and not Android........
[MTCD Android Head Units General] typos1:
You may be right - I m just repeating what others have said in this thread.
[MTCD Android Head Units General] marchnz:
I'd really like to get confirmation that MCU on MTCD can be installed across models as I have just upgraded to Px5 2gb. Seems that the MCU controls the shutdown delay and option to remain permanently in standby which I would like on my JY unit.

Can anyone confirm applying various manufacturer MCUs on other MTCDs?

How did you get on with your 2gb RAM upgrade? Mine failed after about 1 month - fortunately it keep working but at 1GB or RAM.
[MTCD Android Head Units General] typos1:
Well, on MTCB/C units the SoMs can be used with any MCU, on MTCB/C units the MCU controls shutdown and I d expect the same to be true of MTCD units.

I still havent got around to getting the RAM installed yet, sorry to hear about yours, wonder why that happened, maybe you should post in the thread about it ?
[MTCD Android Head Units General] stefcio007:
Ok, thank you, I was fairly certain it was not on the PX3/PX5 board and on the other board and that it wouldn't make a difference.
[MTCD Android Head Units General] typos1:
The Sofia MTCD units also have a BT module on the SoM which can be used for file transfers etc (while the MCU controlled BT handles the phone), so some MTCD units DO have BT controlled by Android, sadly I dont think this applies to the PX5.
[MTCD Android Head Units General] marchnz:
I have noted at least the KD and JY MCUs are identical. Now to determine if one of the latest MCUs which enable changing sleep settings on Px5 is compatible.

---------- Post added at 07:55 PM ---------- Previous post was at 07:20 PM ----------

Hi, can you please list your firmware/MCU version. I don't have this setting following upgrade from px3 and keen to figure it out.

---------- Post added at 08:30 PM ---------- Previous post was at 07:55 PM ----------

Yes, note that KD firmware applies to JY for which a later MCU update exists. I have successfully applied KD v2.40 over JY2.06_2.
[MTCD Android Head Units General] solmer:
Hi! I've received my PX5 board and I'm going to install it on my JY UL135. I'm running the latest MCU for my unit MTCD JY2.06_2 but I'm afraid of bricking my unit if flashing the KD v2.40 over JY MCU...Could you share a link to the KD v2.40 MCU? Just to be sure that I'll flash the same file like you.... BTW: Which are the improvements of the KD V2.40 vs JY 2.06_2?

Thanks in advance .
[MTCD Android Head Units General] Wout2426:
I'm going to receive my px5 board hopefully this week, I'm on the same mcu as you I think. I found 2.40_1 kd mcu here: https://xdaforums.com/android-auto/...-development/mtcdkd-factory-firmware-t3477176

Is it the one ?

Below a pic of my mcu.

https://goo.gl/photos/tjVtgkVxcJGGtPkb8

It's a joyous j-2818w.
[MTCD Android Head Units General] marchnz:
[MENTION=558828]solmer[/MENTION]

& [MENTION=558828]solmer[/MENTION]

Hi, thats was exactly the JY MCU I came from and the link you reference is where I obtained the firmware from. Be sure to copy all of your settings down from [factory settings] menu as this upgrade resets them.

I havent yet noted any significant improvement other than bluetooth call audio comes out of both left and right front speakers.

I was hoping this update might enable the menu feature for sleep settings.

Given this, i suspect that MCU compatibility may be more common than we know and will be comparing a few more manufacturer MCU updates this week.
[MTCD Android Head Units General] screwey:
Just upgraded a MTCD_KD unit with the PX5 hardware. Was SIMPLE.

Remove the top cover 2 screws (1 on either side)

Loosen the GPS antenna input

Remove the DVD Drive unit 4 screws, one on either side, and two underneath.

Carefully pull the drive out and set aside, taking care not to tear the ribbon cable (can be removed, but I didn't)

Make note of wire routing.

Pull the original GPS antenna connector out of its hole.

Remove the two screws retaining the original core board. (they were set with rubber cement)

Move any cables which may be obstructing core board removal.

Carefully pry the core board up to remove and set aside.

Align the new core board with the system pins, ensure the screw holes are aligned, and gently press into place.

Secure the new core board with the original screws.

Place the new GPS antenna connector in the hole (note alignment) and secure.

Replace the DVD drive (I found it easier to align and install the rear screws first)

Replace the top cover.

Reconnect and test.

Done.

Hope this helps someone....
[MTCD Android Head Units General] solmer:
Hi Thanks for the info :)

I'll try to upgrade mine (first I need to copy all my MCU settings) today. I'll post the results this night.

:good::good::good:
[MTCD Android Head Units General] marchnz:
Good luck. PM me if you need any assistance.

Note I have now applied HA v2.52 to my originally JY 2.06 - see this post

https://xdaforums.com/showpost.php?p=72737797&postcount=640
[MTCD Android Head Units General] solmer:
Hi Marchnz, Thanks again for your help. I've updated my unit with the 2.40 and works like a charm!!! It solved my main problem (Bluetooth calls only in one side speakers) . Then I've installed the new board PX5 and all I can say is...WOW !!!! Now all works like it should be, no lag, multiple apps running properly, even the DVR CAM works great (previously it shows incorrect date / time on the overlay). I must admit that you're brave :D flashing MCUs form other brands...I always tought that MCUs are not interchageables. :good::good::good: Now the question :) Did you notice any improvement using the latest HA MCU? As I can see in your post flashing the HA MCU allow to change sleep time...I'm afraid of running out of battery due long standby...

One more time thanks for your support.

---------- Post added at 01:44 PM ---------- Previous post was at 01:31 PM ----------

@marchnz BTW...... Which is the latest firmware?

Thank U
[MTCD Android Head Units General] Wout2426:
I'm getting my px5 board tomorrow, gonna install Friday.

I was wondering:

Would it matter if I go directly from jy2.06 to ha v2.52

Did you upgrade mcu before or after placing the px5 board ?

Could you give me a link to ha v2.52 ? Can't find it in the other topic.
[MTCD Android Head Units General] marchnz:
Yes the PX5 is a fantastic upgrade. I would recommend this over the px3 ram upgrade.

The latest firmware of any of the manuf. I can see is HA v2.52. This is the firmware you want.

The improvements I have found over the last day are:

- configurable boot (fast boot or configurable off time)

- reliable BT phone pairing

- steering wheel keys configuration remains stable (as of KD 2.40)

- sleep powers off USB (as of v2.40)

For me, these are finally great little units.

---------- Post added at 06:55 AM ---------- Previous post was at 06:47 AM ----------

HA FW thread https://xdaforums.com/android-auto/...asaita-mcu-updates-rockchip-px5-octa-t3575155

I had JY v2.06 on my PX3.

- I then upgraded the Hardware to PX5.

- PX5 - Upgrade MCU to KD v2.40

- Upgraded to HA v2.52

I wouldnt think it would matter going directly to v2.52 from v2.06 but best follow that.
[MTCD Android Head Units General] gangs73r:
Question about my hu

Hey guys pls confirm me if my head unit :

RK3188 5.1.1 android MTCD_GS_1.52_1 Is compatible with the board WITSON sells

I'm asking because I've asked the seller of my head unit if it has a px5 for sale, hoping that he will ask a lower price and he wrote this :

" the price as $130 i asked my engineer already ,he told me he can't make sure it can work in the dvd or not ,we don't suggest you to buy it

thank you "

Thank you
[MTCD Android Head Units General] typos1:
If you have an MTCD unit and its a PX5 SoM for an MTCD unit it will work.
[MTCD Android Head Units General] randeez:
Bob came through! Part delivered, I pulled unit back out of truck. Install was easy everything went smooth, for my particular unit - take off top, remove dvd components (didn't even disconnect ribbon cable), and swapped the part. I did have to remove the middle screw from the px5 so it would sit flat.

Put it back in truck, powered on with no issues. Like said, had to reload a few apps ( as slow as mine was I hardly installed anything), and had to set up buttons on face again, but now it runs through the menus fast and smooth, we'll worth the upgrade. I was about ready to replace the whole unit as long as it keeps working as it does now I have no reason to
[MTCD Android Head Units General] janusz12561@gmail.com:
Today in such exchanges, it's great. I modified a little heat sink on the plate.
[MTCD Android Head Units General] chaps:
MCU is MX, version 2.51 i think. Firmware is dated May 20th.
[MTCD Android Head Units General] AndroidBricking:
Is this compatible with MTCD_XRC_V2.52_1? There seems to be no mention of XRC units anywhere. Also, where do you even buy these boards? The link in the OP 404's for me.
[MTCD Android Head Units General] Wout2426:
On AliExpress search for coreboard. Witson store. I just received mine.

WITSON Octa-Core 2 GB RAM 32 GB Flash Coreboard Voor Android DVD (Android 5.1 A5XXX upgrade naar Android 6.0 B5XXX rechtstreeks)

http://s.aliexpress.com/BRNFz2yM

(from AliExpress Android)
[MTCD Android Head Units General] makes2068:
Got an Erisin 3015 RK3188 unit.

Will this work? Can´t imagine that all units got the same board interface to attach the new part.
[MTCD Android Head Units General] typos1:
Yes, all MTCD units have the same attachments for the SoM, all MTCB/C units have the same attachments for the SoM (different from the MTCD attachment).
[MTCD Android Head Units General] makes2068:
But mine looks different. Where to place / re-place the board? Look at my picture.

It´s a mtcd device
[MTCD Android Head Units General] typos1:
Different to what ?
[MTCD Android Head Units General] makes2068:
Different to the socket to place the chip!?

Look at the chip and my picture. Should be mot possible to match both things.

diese Trägerplatte Für WITSONAndroid DVD ( Android 5.1 A5XXX modelle upgrade auf Android 6.0 B5XXX) nur!!! andere serie modelle ist nicht kompatibel!!
[MTCD Android Head Units General] typos1:
I cant tell any differences unless you post TWO pictures !! :)
[MTCD Android Head Units General] makes2068:
Picture 1 = My unit

Picture 2 = the module

Different shape!

Antenna or GPS? wire also looks different
[MTCD Android Head Units General] typos1:
One picture is the front, the other is the back, but still, theyre clearly the same - all MTCD SoMs are the same shape with the same connectors because they fit all MTCD units. Maybe the antenna is different but what does that matter ?
[MTCD Android Head Units General] makes2068:
Other side...

To me, it´looks different,. very different.

To risky to order something of 110,00 USD and then it won´t fit and work.
[MTCD Android Head Units General] typos1:
Theres a heatsink on that one, which is why it looks different, underneath that will be a DIFFERENT chip (the whole point in fitting it in the first place) so that will also look a bit different.

Its clearly a SoM for MTCD units and besides, many people have reported buying it and successfully fitting it, cant really say any more.
[MTCD Android Head Units General] makes2068:
Last question: Is there a screw to adjust the brightness, saturation, hue with this board?

Mine at the moment gets white and too bright when it is cold outside.
[MTCD Android Head Units General] marchnz:
​

Quite right, too risky you shouldnt do it, even despite all the effort/posts from those that have upgraded.
[MTCD Android Head Units General] makes2068:
Very funny and very helpful. (written in the same ironic mode) ;)
[MTCD Android Head Units General] typos1:
No, thats controlled by the motherboard.
[MTCD Android Head Units General] Nomader0:
mate, all MTCD are the same..

it will install perfectly, you will only have to remove the middle screw from the boards heatsink so it will be able to sit flash.

go ahead, i did it and works ok

about hue.saturation/brightness, this is a fault from you unit i think

i have not seen any hardware method to adjust those
[MTCD Android Head Units General] typos1:
There is a hardware method - someone from 4pda.ru has done a mod for it.
[MTCD Android Head Units General] makes2068:
Board ordered. Thanks to all for answering my questions ;)
[MTCD Android Head Units General] Wout2426:
Just put the px5 board in my joyous j-2818w from deal extreme.

Bought it from witson on AliExpress.

Had to find 2 longer screws, and took out the middle one to place it flat.

Everting works without upgrading mcu. Buttons, gps (better signal), standby time, radio, USB front cam, backup cam bleutooth. Installed TomTom without problem.

No need to disable playstore anymore, it's flying !

Best money ever spent !
[MTCD Android Head Units General] Wout2426:
EDIT:

After some discovering i could not find the option to change shutdown delay.

I had the delay on 1 hour with the px3 board. I'm waiting now to look if it realy shuts down after that time.

So i treid to update the MCU from recovery.

But both from sd and usb it fails. Can't mount.

In the about device in settings is an option to update MCU.

Is it save to try it from there, or only from recovery ? Anybody did it this way ?
[MTCD Android Head Units General] Nomader0:
it will update both firmware and MCU if it finds it, from the about menu
[MTCD Android Head Units General] ozzyboy:
can you send me in pm a link with borad? thx!
[MTCD Android Head Units General] typos1:
Really ??!! The link has been posted about 1000 times already in this thread and even on the previous page and youre asking for it ??
[MTCD Android Head Units General] Wout2426:
Found the problem, stick was NTFS.

Formatted to fat32, flashed it successfully.

Restore with the dmcu.cfg file did not work. Home and back button don't work.

Is the a way the re assign them manually ?
[MTCD Android Head Units General] marchnz:
Factory setting - keystudy. With my JY I have mapped a long press on the homekey to turn off display - fantastic!

---------- Post added at 09:55 AM ---------- Previous post was at 09:54 AM ----------

This is the context to my "frustrating isnt it" comment - I don't understand why people cant be bothered to read - or adhere to forum rules.
[MTCD Android Head Units General] Wout2426:
Yes ! Thx ! That was easy. :o
[MTCD Android Head Units General] prokenny:
Does an upgraded unit support glonass?

Have to buy a new antenna?
[MTCD Android Head Units General] Wout2426:
Don't know what glonass is, I use the same gps antenna. I noticed that the wire on the px5 is thicker than on the px3, signal is stronger in my opinion.
[MTCD Android Head Units General] prokenny:
Glonass is the russian GPS solution and adds more satellites for faster locks and better precision,

I had many lock in problems in the past with the PX3 thats why im asking this,

Thank you for the answer
[MTCD Android Head Units General] Wout2426:
Me to, gps invalid. Now I have more satelites, and the are stronger.
[MTCD Android Head Units General] marchnz:
Are you sure that the problem with your px3 was related to glonass? Suggest that it was related to the mtcd 5.1 px3 being awful. Px5 with 2gb of RAM and marshmellow appears to solve many problems.

From experience in px3 and upgrading it to 2gb (which failed some months after) the px5 platform with supporting MCU update is fantastic.
[MTCD Android Head Units General] prokenny:
Not related but glonass support will help with faster locks and precision.

I didnt received my px5 yet so didnt tested the GPS but if a pretty cheap upgrade is going to improve the GPS even more maybe its worth trying.
[MTCD Android Head Units General] typos1:
Thats strange - the MTCB/C RK3188 units dont have GPS lock problems.
[MTCD Android Head Units General] stefcio007:
Has anyone tried Android 7.x on these units?
[MTCD Android Head Units General] Topfar:
Hi, I am waiting on a new core board from Witson.

I would like to fit a passive heatsink but can't work out the dimensions from the photos.

I figure that I should not cover the holes in the existing plate and just use the blank area.

Can anyone help with the size required please?

Regards.
[MTCD Android Head Units General] typos1:
No cos it doesnt exist for them yet.
[MTCD Android Head Units General] weevil_:
Holy smokes, believe the hype people, popped the new board in and it’s like night and day. Feel like I’ve come out of the stone age into the modern world.

Worth every cent.
[MTCD Android Head Units General] makes2068:
Ordered and waiting...
[MTCD Android Head Units General] prokenny:
Totally true, i installed it today and its awesome this is how it was meant to be,

Now i can run Waze+Spotify at same time without the HU exploding,

The only downside is that my Huawei E1752C 3G usb no longer works on this unit

---------- Post added at 08:43 PM ---------- Previous post was at 08:30 PM ----------

I cant find the post of someone that had a problem of white lines across the screen after upgrading to PX5, if you remember where is that post please tell me or if he read this post:

I had the same problem and its because the new board isn't perfectly fitted i removed it and placed it again being much more careful and its solved.
[MTCD Android Head Units General] marchnz:
Agree - unit is finally a replacement for the OEM unit.

Sleep/resume, where the unit is immediately ready to use when powered back on alone is worth the update. 2GB of RAM makes it all the more worthwhile.
[MTCD Android Head Units General] randeez:
I think on paper its only "1gb more ram!", but the OS uses 600mb right off the bat leaving 3-400 usable. so that extra GB is really like 3x as much ram

also, having problems with bluetooth. it doesnt seem to turn on at all, won't locate any devices (just want to use OBD2 +torque). I saw a few updates to HA 2.52 ? but i cant seem to find the file itself.

nm i think i need to find any updated KLD MCU file

***Bluetooth works fine using the included app. Trying to go through settings does not work
[MTCD Android Head Units General] stefcio007:
Is it true that there is instant boot? My PX3 show a "boot animation" before it shows Android interface. Is this no longer the case on PX5 or is it just really fast?
[MTCD Android Head Units General] weevil_:
Boom, it's instantly there.
[MTCD Android Head Units General] marchnz:
The PX5 sleeps and resumes by default, so unless you force boot or select power off in the (mcu supported) shutdown delay menu, you wont see the boot animation.

Experience is similar to turning your screen off and back on on your phone.
[MTCD Android Head Units General] weevil_:
The screen artifacts are the only issue I'm having with the new board. They fade after a short time, but am keen to get rid of them.

I've tried opening everything back up and reseating the board firmly a couple of times but am having no luck.

I removed the centre screw from the board but think perhaps the standoff for it may be not letting it sit quite right?

Anyone else having this issue?
[MTCD Android Head Units General] Topfar:
Going to guess at 40x40mm and hope it doesn't cover too many holes.
[MTCD Android Head Units General] makes2068:
Still waiting for mine. It´s on it´s way...
[MTCD Android Head Units General] Chipmik:
Received mine 2 weeks ago...Totally transferred the unit into a usable head-unit.

Wonder if Malaysk has left the scene, almost 2 moth since last update :(
[MTCD Android Head Units General] typos1:
Hes busy, what with 4.4.4. ROMs for RK3066/RK3188/PX3 MTCB/C units, 5.1.1. for RK3188/PX3 MTCB/C units, 5.1.1. for RK3188/PX3 MTCD units and the new RK3368/PX5 MTCD units !
[MTCD Android Head Units General] roblis:
are they really no problem even, the mctd have physical button and knob (mtcd_gs)?
[MTCD Android Head Units General] OnkelDeffe:
Got mine yesterday and had some major diffculties to install it: don't know why, but after a lot of tweaking I finally had to remove the cooler, drill a big whole for the center screw and then (with all 3 screws) it seems to function now. Keep in mind, that the original screws are to short and it is not easy to get the longer ones! And I had to change the gps cable (my unit has a fakra connector). So it was not as easy as I thought but the new px5 unit is nice ;)

Will have to find and reinstall the dab+ app (didn't found it in storage after install of the new board), wifi is as slow as it was :/ and I think that the unit gets hotter than before - hope that there won't be any problems when installing it in the car?!

BTW: where can I select the new "sleep mode" with fast startup? Mine seems to shut down completely after 1 minute and the startup is a little bit faster than before but still about 30 seconds ...
[MTCD Android Head Units General] OnkelDeffe:
Another question: I like the new android 6 homescreen with smaller and bigger icons - but how can I change it? I installed the DAB+ app and would like to replace the big ukw tuner icon with it - but it stays "small" - any idea?