yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units General] FallenReb:
Hi Im have problem with own 2din android radio. Android 8.0

Dont know what MCU get.

Model : XRC7117XPB (info from auction)

Procesor: Rockchip PX5, Octa core Cortex-A53 1.5

PowerVR G6110 GPU

Oryginal Im have problem with Wi-Fi, mostly frozen and dont work. Im write to seller and Im get update MCU - MTCE_XRC_V2.94.

After it radio completly mess. Version unmached, BT dont work and physical button in radio and on wheel dont work too.

Seller answer checking problem but for few days Im havent answer. Of course before update Im dont check version MCU, dont know about it. Now I read and learn.

Im check few MCU and found HA version work without version unmached. Im update with MTCE_HA_V3.40. Still mostly function dont work only bluetooth I run.

I need any suggestion what can back my radio to work.

T
[MTCB Android Head Units General] typos1:
Wrong forum - this is the MTCB/C forum, you need the MTCD/E forum.
[MTCB Android Head Units General] FallenReb:
Thanks. Im write to other section. Few day ago I dont know what MCU.
[MTCB Android Head Units General] agkazianis:
help needed for a MCU : GLD01.160722(54) KGL010.1.1

Hello i can not find any updated firmware for my chinese double din wince unit.

MCU : GLD01.160722(54)

HMI : KGL010.1.1 14.09.11.10.01

Thanks
[MTCB Android Head Units General] typos1:
Why are you asking for help here ?
[MTCB Android Head Units General] m4f1050:
One of my HU may have lost Radio and BT audio from phone functionality due to me updating the MCU from KLD6 to darkleo KLD 2.64. I did it knowing it may mess up, but for some reason I updated the MCU back to KLD6 2.85 but that did not work. It did fix the tap sound but the Radio and BT audio do not work anymore. Not sure if it's a setting (which seems to be) but I tried every factory setting in Bluetooth module and in Radio module but no luck. This is a reminder to *NEVER* update with another MCU version other than the original one your HU has...
[MTCB Android Head Units General] typos1:
You should update to the latest MCU, but before you do so you should ALWAYS go into factory settings and use the "export" function to get your mcu.cfg file before flashing the MCU, then flash it with the MCU.

So its not due to updating the MCU that the problem, its you not following the correct procedure.

If you can find someone with the exact same head unit could fix it.

Whats a "tap sound" ?
[MTCB Android Head Units General] m4f1050:
Yeah, too late for that. Never knew about the export so never tried it. Good time know. But yeah, finding someone with this HU will be like looking for a needle in a haystack....

Amazon

https://amazon.com/dp/B01H353SM6

One of the first Android 5.1.1 units, $500+ back then...

Tap sound is they key sound.

EDIT:

Seems like it's an MTCC, I tried the KLD6 from MTCC and radio is working again. :D

BT audio wasn't working before switching MCU so will try different BT modules now. Funny thing is that BT calls work fine, I am guessing it could be the themed BT apk I installed?
[MTCB Android Head Units General] typos1:
Any MTCB Klyde can be upgraded to MTCC.

I ve had one of those myself before but I dont have it anymore.

So what is not working now ?

I d try several of the KLD MTCC ones if I were you maybe export the setting each time and label them so you know which is which.
[MTCB Android Head Units General] m4f1050:
Only BT audio streaming from a connected device (my phone streaming audio via BT to HU) but BT call works fine. It's odd... I don't think replacing MCU will work, it may be the BT apk? It's a themed one from 4.4.4 which works on another MTCB HU (but not sure if it worked on this MTCC before?)
[MTCB Android Head Units General] typos1:
Do you intend using streaming ?
[MTCB Android Head Units General] magnoman28:
my radio eonon G2110zv version MTCB-KLD2-V2.72

I can change the version to MTCB-KLD6-V2.83 ?????????
[MTCB Android Head Units General] typos1:
There are no changelogs for MCUs I m afraid.

As the wiki says, you can only change to an MCU that matches your type, so no, only KLD2 MCUs will work on your unit.
[MTCB Android Head Units General] Marius B:
Today i talk witk my contact from kgl and send to me mcu for kgl 2.80 for my unit. I see on Malay post that exist 2.83 . I think it is some changes for differit unit . I think is not universal kgl 2. .. for all unit.

Send by phone
[MTCB Android Head Units General] typos1:
KGL MCUs for KGLs KGL2 MCUs for KGL2s, you cant interchange.
[MTCB Android Head Units General] Marius B:
My friend i know that. Tell me why my kgl contact dont send kgl 2.83 and send kgl 2.80 for my unit ?

Send by phone
[MTCB Android Head Units General] typos1:
I cont know, ask him/her ?
[MTCB Android Head Units General] Marius B:
I ask tommorow.

Send by phone
[MTCB Android Head Units General] Marius B:
I ask but no answer. Only with darkleo moded 2.64 my led from botton work good. With 2.80 and 2.83 stay light on all time.
[MTCB Android Head Units General] m4f1050:
If you want to control the lights to turn on only when you turn on your lights you need to wire the light cable and use factory settings to use this type of light control.
[MTCB Android Head Units General] Marius B:
I tried my friend . If i leave light wire and dont put to car light is the same . All time stay online.

Beleve me i tried all method.

Send by phone
[MTCB Android Head Units General] m4f1050:
But did you also set the setting in Factory Settings "key light"?
[MTCB Android Head Units General] Marius B:
I tiried but dont work.

Right now it i put wire direct on light car function .

Car was vw polo 9n3 .

Why only with darkleo 2.63 mcu work ? What he done ?

How to moded and 2.83 ? I see that darkleo dont want to make another changes.
[MTCB Android Head Units General] m4f1050:
Not sure, but that's how it should work, wire the light cable and change the key light. Another question is, does the light wire ground and change resistance if dimming or is it 0v thru 12v for dimming?
[MTCB Android Head Units General] typos1:
Stick with the one you have for now then
[MTCB Android Head Units General] magnoman28:
my radio eonon G2110zv version MTCB-KLD2-V2.72 and malasky the latest ROM for 3188

when I put the ignition key Aenon lost my signal radio tuner

also with changes in sotfware I order the beep of the keys

any solution for this ???
[MTCB Android Head Units General] minhangre:
Good morning.

Just bought one of these units for my Jeep Wrangler.

I'm not very picky, bit there are two problems annoying me:

In Bluetooth, I can't hear other people (but they can hear me, so I know the internal mic is working, and the Bluetooth itself is working too).

Sound works fine in the default apk, but I get no sound from YouTube, for example.

I already updated the ROM, so I think the problem is in the MCU.

And here is yet another problem. My MCU is MTCB-KD-v2.81, and I can't seem to find any update or even a downgrade to it. Is there any available? Thank you.
[MTCB Android Head Units General] typos1:
The mic problem is a known problem, please read the wiki and search the hardware mod section, the second is not a problem at all - thats the latest KD MCU.
[MTCB Android Head Units General] minhangre:
Good afternoon.

I'm sorry, maybe I didn't explain myself right.

The mic works just fine, people can hear me with no problem (not the best quality, but usable).

It's me who can't hear other people, the sound don't come out from the speakers. Bluetooth music works fine though...

Another problem I just remembered is that if I leave key tone enabled, it keeps on beeping, either if I touch anything or not.

I'm glad it's the latest MCU version. Can you direct me to somewhere I can download it or even an older version, so I can discard if it is a MCU problem or not?

Thank you.
[MTCB Android Head Units General] typos1:
I ve not heard of that problem before I m afraid, the first page shows MCUs and where you can get them.
[MTCB Android Head Units General] OlvrCA:
Guys, what's exactly changed in the mcu's with redesigned sound processor? Thanks.
[MTCB Android Head Units General] m4f1050:
I can live without it for now, that's why I connect my HU to my WiFi hotspot, to use services on the HU instead of streaming.

I saw a $100 Android 8.1 unit 9" instead of 8" that I might just get later on, these MTCB/C units are a bit outdated already... They still work great, I disabled System UI and run everything from LauncherMod Car and have been for a while without issues, using Offline Maps & Navigation and Navigon (until Garmin pulls the plug on it) as my GPS instead of Google Maps and I really can't complain... I might just keep this unit until Google decides to not updated apps running on 5.1.1 anymore... At that point it's no use keeping them, when you can even get an Android 10 HU for about $200...
[MTCB Android Head Units General] typos1:
Are you using a custom ROM ? Its much much better.

I moved on to the newer MTCD/E units, theyre good, you can pick a used one up pretty cheap, I ve had loads, you can also swap out the SoMs when if you want an update, the slowest uses the same RK3188/PX3 as the MTCB/C units, in 1 and 2Gb RAM (the probelm with MTCB/Cunits is that theyre only 1Gb RAM), but the fastest uses a six core RK3399/PX6 SoM with 4Gb RAM, theres also an eight core RK3368/PX6 and newer quad core RK3326/PX30s also with 2Gb RAM. The beauty is that all these SoMs are interchangeable.

You can check them out in the MTCD forums on xda.
[MTCB Android Head Units General] m4f1050:
Sounds like a plan. I'll wait until Google pulls the plug on 5.1.1 and go that route. For now it seems to work and after spending $500 on these I want to get the most out of them before I spend any more... ?*♂️
[MTCB Android Head Units General] typos1:
A custom ROM is far better than stock and will bring you lots of improvements including faster running using microG.

I think you ll be waiting for a very long time before google pulls the plug.
[MTCB Android Head Units General] m4f1050:
Yeah, that's why I keep using it. Because Google hasn't pulled the plug and because I use Malaysk 5.1.1 with System UI disabled (works great with only 1GB, 2GB upgrade is too expensive)
[MTCB Android Head Units General] aeonline:
Me too right now i can not BT ,So now Can i fix it?
[MTCB Android Head Units General] LionX1969:
I'm to stupid for this.

I load the GS v.2.73 File from post 1.

But my radio don't find the IMG-File from SD.

My radio-data:

Eonon GA6163F

MCU-Version：

MTCE_GS_V2.84_1

May 2 2018 09:46:21

Android-Version：

5.1.1

Kernel-Version：

3.0.101+

chun@hctr930 #237

Wed Nov 2 16:18:31 CST 2016

Build-Nummer：

rk3188-userdebug 10112016.13:32:13

Can someone help a newbie?

Status:

- Restored to factory settings after trying to update it to Android 6

- now no radio reception

- some keys don't work

- lighting does not work

- Steering wheel control does not work
[MTCB Android Head Units General] typos1:
Why are you using such an old MCU ? GS units are on 3.44 now.

You cannot upgrade from 5.1.1 to 6 - there are no SoMs that ran Android 5.1.1, from the factory that can run any higher Android version.

If you did not go into factory settings and use the expoert function before flashing the MCU you may well have messed the config up.
[MTCB Android Head Units General] typos1:
You cannot restore factory settings, there is no "right MCU" - the unit can use any GS MTCD or MTCE MCU.

If you did not export your settings before flashing the only real option you have is to find someone with the exact same unit and ask for their config, you could try changing the "knob mode" settings in factory settings to get the buttons back, that may work.
[MTCB Android Head Units General] LionX1969:
Befor restore the Unit give me this infos:

MCU-Version：

MTCD_KLD_V1.96_1

Nov 5 2016 09:59:15

Android-Version：

5.1.1

Kernel-Version：

3.0.101+

chun@hctr930 #237

Wed Nov 2 16:18:31 CST 2016

Build-Nummer：

rk3188-userdebug 10112016.13:32:13
[MTCB Android Head Units General] typos1:
Thats not relevant.

Your MCU config reset and you did not export it before flashing so now its messed up.

Try this : go into factory settings (password m123456 or 126)

change the CAN Bus version to VW which should get your SWC back

set your hardware buttons there too, so you may be able to get your buttons back

you may also be able to get your LEDs back by changing when they turn off and on

you could possibly restore the radio reception by changing the area back to Europe

Once you have done all that and got it working, press "export" and save a copy, then flash the attached MCU, its the latest KLD one.
[MTCB Android Head Units General] LionX1969:
Best info ever

I tried all MAZDA CAN-BUS versions and I found one that works good enough

Works also without Problems

This is not working as well. No reception yet. I will see if the antenna is out...

Thanks a lot for the competent answer
[MTCB Android Head Units General] Savran_2020:
Hello i need some help for my old car radio.

It need's a UPDATE ... because it is very slow and got problems with SD cards.

My problem is ... i got only this information :

- CPU : Dual Core / ROM 4GB - DDR3 1GB

- OS : Android v4.4 - BSP 1.12-20160425

- KERNEL : Linux 3.4.39 - Mon Apr 25 17:51:02 CST 2016

- MCU : 1.12.0.01 - 20160425 - 68567719T

So i haven't any clue witch MCU i need !

Regards

Savran
[MTCB Android Head Units General] typos1:
Wrong forum - this thread is in the MTCB/C forum, you dont have an MTCB/C unit, try the general Android headunits forum.
[MTCB Android Head Units General] duegi:
Hi everyone, I bought a used car with android PX3 car stereo, but I think the old owner messed with the MCU versions.

I'll show you the screenshots, is it normal to have an MTCE on a 2gb PX3?

My USB sockets are not working

New item by Gigi Leogrande

photos.app.goo.gl

New item by Gigi Leogrande

photos.app.goo.gl
[MTCB Android Head Units General] typos1:
Wrong forum - his forum is for MTCB/C unit and you have a newer MTCD/E units.

There is no reason to suggest that the MCU is messed up, its just a it old and could do with updating (ALWAYS go into factory settings and export your settings before updating the MCU).

Dismantle the unit and check whether the USB ribbon connectors are plugged in.
[MTCB Android Head Units General] duegi:
Sorry unfortunately I did not know, do I have to move the tread?

Could you fix a factory data reset?
[MTCB Android Head Units General] typos1:
You cant move your post, just post in the MTCD/E forum, search for relevant threads first.

Try a factory reset if you like but I doubt it will make the USBs work. Like I say I would open it up and see if theyre plugged in.
[MTCB Android Head Units General] fasterw0w:
Hello, 4 years ago i bought radio with MCU Version MTCD_GS_V1.61_1

Android version 5.1.1

And when iam launching YouTube its freezing , so i decided to upgrade that .

Can i do that to the

„GS v.2.55 with sleep and redesigned sound processor from darkleo - View attachment MCU_GS_2.55_Sleep_Musik.rar

GS v.2.73 - here” ???

And whats the diffrence ? :)
[MTCB Android Head Units General] typos1:
There are much more up to date GS MCUs in the link in my signature, all have sleep but none will help with youtube freezing.
[MTCB Android Head Units General] fasterw0w:
Okay , how can i install aps on sD card ? Maybe this will speed up YouTube etc
[MTCB Android Head Units General] typos1:
Dunno never done it, its more likely to be not enough RAM - are you using microG ?
[MTCB Android Head Units General] fasterw0w:
I have 1gb ram , i dont know what is microg so i think iam not using that xD ill try update my soft so maybe will be better :)
[MTCB Android Head Units General] fasterw0w:
Wheres the link ?
[MTCB Android Head Units General] fasterw0w:
(sorry double post)
[MTCB Android Head Units General] typos1:
The 5.1.1 SoMs are very slow due to 1Gb RAM, try @Hal9k_'s Lollipop ROM set to microG. The link for MCUs is in my signature.
[MTCB Android Head Units General] pim1980:
Hello,

I have a mcu version mtce_mx2_v3. 08 and i like to update it because i have some problems with visualization of parkpilot and parksensors. Can i use MTCE_MX_V3.30?

So van i go from mx2 to mx?
[MTCB Android Head Units General] typos1:
AFAIK MX and MX2 are interchangeable, go into factory settings and use the "export" function, if you get any problems flash the "mcu.cfg" file that exporting generates to correct them.
[MTCB Android Head Units General] aliak122:
Hi what exactly is mcu doing? And do you need to replace the mcu to install the new ROM? Because I can not go from Android 9 to 10 with this mcu version that has been posted.
[MTCB Android Head Units General] typos1:
Thats the latest KLD MCU, they dont make MTCDE units aymore, check out the "Cross Compatible MCU" thread to see what MCU to use instead.
[MTCB Android Head Units General] Supermax.:
Good day maybe you can assist me I'm in need of advice I have this version MTCD_HZC_V2.58_7 but can't seems to find an update. Appreciate the assistance 🙏
[MTCB Android Head Units General] sweetiebox:
Hello

I need some help!

I have an Chinese Android unit and cause some problems i had to reaet it to factory settings. After that I have no Idrive menu anymore. If I want to switch to bmw original menu, it shows me black screen.

In factory settings menu there is no any options! (Before reset was)

My BMW model is: 1er f20 2012

Regards

JVD
[MTCB Android Head Units General] typos1:
Whats your MCU ?
[MTCB Android Head Units General] Garrygb:
Thanks for helping with this!
[MTCB Android Head Units General] hu016865:
hi.

i have a headunit mtcc - kld6-v3.06 with android 5.1 and 1 gig ram with custom rom

now i want back to official rom

i found "KLD_LP_rk3188_p_2016-06-22" & "KLD3_LP_rk3188_h_2016-09-14" in internet

now can i flash this rom in my headunit ?

my kld6 and this rom is kld & kld3.
[MTCB Android Head Units General] hu016865:
nobody ?
[MTCB Android Head Units General] kmatar:
I want update this mcu and software update how i can??
[MTCB Android Head Units General] BBKK1313:
help, after the update I have a yellow bar and the inscription ui and mcu does not match (key) version mcu:2017-11-16 16:12:01 ZHAN_(_R68)_90_C9_R68_V1.00_CAN(All)_Amp.
[MTCB Android Head Units General] BadRsT:
Does someone who can help me to find the firmware and the MCU for this one?

Intel Sofia3gr Rockchip RK30SDK

MCU: FY_90_C9_7703_18EM_JY2009B

Security patch level: 01-06-2016
[MTCB Android Head Units General] waleed atef:
please i need this ver from mcu ...

ui and mcu does not match (zhan)
[MTCB Android Head Units General] waleed atef:
hi are you solve your problem ... but i need same mcu almost
[MTCB Android Head Units General] waleed atef:
Please i want mcu for zhan
[MTCB Android Head Units General] blacknoise.s:
I've got an MCU YC801.151211(86) and have been searching and searching for anything on it, im not sure if its just incompetence having not grown up with Forums or whatever but I keep getting redirected back here to XDA and cant find anything at all. Looking for either an update or information at all
[MTCB Android Head Units General] blacknoise.s:
Have this
[MTCB Android Head Units General] manu27:
Hello,

can someone tell me which MCU i have?

ZH? NBT? KTH or BA?

Thank you
[MTCB Android Head Units General] typos1:
Not an MTCB/C one so wrong forum.
[MTCB Android Head Units General] vicenvizu:
hola tengo una radio android de 9 pulgadas con android 13 y no me funciona bien cuando se conecta a internet mediante el iphone, las luces de la pantalla no puedo ponerlas fijas y el canbus de mi coche no sale en la lista después de actualizar la unidad .

Mi MCU es 2022.09.06 10:25:20 NOR_YX_18_L81_R10P80F1024_KEL_VER:1.0_RTC32<N

gracias
[MTCB Android Head Units General] he4wy:
hi, i need your help please i have some vertical unit with 4.4.4 android and car is Chevrolet Captiva 2012 and MCU version is KWY and i dont now how to downgrade to original MCU can you help me to find some firmware for it please?
[MTCB Android Head Units General] tayran.ozturk:
@Malaysk can you please share MX v.2.55

The link you sent broken
[MTCB Android Head Units General] tayran.ozturk:
Please share mtcb-mx 2.55 rom
[MTCB Android Head Units General] tayran.ozturk:
please can someone help me
[MTCB Android Head Units General] tayran.ozturk:
my proccesor rk 3066
[MTCB Android Head Units General] sascha34:
Hi, someone know this mcu?
[MTCB Android Head Units General] typos1:
Ask Dark Leo, hes the one who does it.
[MTCB Android Head Units General] Marius B:
Where is dark leo . I dont find user id ?
[MTCB Android Head Units General] typos1:
On here somewhere - google it
[MTCB Android Head Units General] OlvrCA:
MCU for KSP v2.89
[MTCB Android Head Units General] neba87:
Which head unit is this mcu versio mtcb-als

Hi,

Which head unit is this with mcu MTBC-ALS-V2.18?

Any ideas?

Thanks
[MTCB Android Head Units General] typos1:
You mean "MTCB-ALS-V2.18" I think.

Not heard of any "ALS" versions before, but the way MCUs are named for these units, the 3 letters after "MTCB" stand for the manufacturer, so ALS must be a new manufacturer.
[MTCB Android Head Units General] Jed Dignazio:
KLD6-V2.81??

Hi, i dont see this version listed, only 2.83. Is it compatible??
[MTCB Android Head Units General] typos1:
If you have a KLD6 MCU then ANY KLD6 MCU is compatible.
[MTCB Android Head Units General] spirosme:
My friends hi, want your help choosing a new system for Suzuki Swift and I have found on the MCU the seller says 'MTCB-KD' searching the forums does not find anything relevant, is this fine new MCU ? :)

It is not reliable construction below I give the link please any help is important.

http://www.aliexpress.com/item/Quad-Core-Android-4-4-suzuki-swift-2004-2010-Car-Audio-Multimedia-player-hot-selling-Supoort/32550424374.html

Thank you and I apologize for my English :rolleyes:

Spiros
[MTCB Android Head Units General] typos1:
Its a KD version.
[MTCB Android Head Units General] spirosme:
Thanks for the immediate response is reliable manufacturer (KD) approved the purchase of this your experience? :)
[MTCB Android Head Units General] typos1:
KD is a known manufacturer its no more or less reliable than any of the others.
[MTCB Android Head Units General] spirosme:
Thank you very much for your transferred my experience that I see this machine does not have RGB Led key illumination and do not know if it is the same as the factory of the car lighting is quite skeptical whether to buy it.

Forgive me rather go off topic. :rolleyes:
[MTCB Android Head Units General] typos1:
Ask the seller ?
[MTCB Android Head Units General] spirosme:
I have tabled a question to the seller and I expect an answer, :confused: do you mean that there is the possibility to be added by him?
[MTCB Android Head Units General] typos1:
No, I mean ask him if the illumination matches that of the vehicle its supposed to fit.
[MTCB Android Head Units General] Jed Dignazio:
Question, is this MTCB files actual roms for the radio, or is this a bootloader?? New to this car radio stuff but long time experience with rooting and romming. Cant be a full rom with a file size of 56k.
[MTCB Android Head Units General] m4f1050:
I think its both, it contains what interprets the hardware you have to the OS (update.img) and while booting and I put my car in reverse it switches to rear view video input.

What I have no idea is where is the recovery, on UPDATE.IMG? Because I remember reading if you install TWRP you lose the ability to flash MCU.IMG?
[MTCB Android Head Units General] alfalasisn:
update my car stereo from 4.2.2 to 4.4.4

Can you please help me to update my car stereo from 4.2.2 to 4.4.4

Here is my Details :

MCU version is - MTCB-KLD-V2.20 RAM : 1.6G Bytes DDR3

Model : S07 CPU : Rockchip 3066 Cortex A9

S/N : 000D18A13B9E NAND: 4G Bytes

Android Version : 4.2.2_23122014 Screen : 800x480 7inch

1GB Space with Dual-core RK3066 MCU : KLD V2.20
[MTCB Android Head Units General] typos1:
Just stick the update on an SD card and put it into the GPS slot, it should auto update.

This thread is for MCUs though, check out the Q&A section for more help.

You DONT have 1.6Gb of RAM BTW ALL these units have 1 Gb only).