yashsingh1/xdaforums huggingface dataset:
[MTCD Software Development] typos1:
Its likely to be a coincidence - pretty certain a ROM wouldn't affect the mic. There are 2 solutions, open it up and make sure the mic is still connected, or just use an external mic.
[MTCD Software Development] elvega:
Ok thank you. It is just that it worked with the stock rom and not now. Are they known for having a poor/loose internal mic connection ?
[MTCD Software Development] typos1:
No, theyre not known for having a loose connection but I ve also not heard anyone say that their mic stopped working after flashing a ROM either.
[MTCD Software Development] elvega:
Ok. Do you think maybe a mcu update can be a solution? My mcu version is mtcd_xrc_v2.54a_1

I read some where along here that you recommended updating the mcu from a mtcd to mtce ?

edit:

Ive read more and found the thread you where involved in :

[Issue] Microphone not working outside Bluetooth app- PX3-2GB-Android 7.1.x​

thread from 2017.

ive been testing with the google search app after reflashing and resetting but i just found out via that thread, that google search is not working with all the xrc devices.

but my issue was with the bt app when i made a call they could not hear me.

With the stock rom i received a call, and i remember i asked if they could hear me, yes (but poorly).

i have to test if the problem is with only making a call and not when receiving a call.
[MTCD Software Development] typos1:
The internal mics are not good, just use the external one.
[MTCD Software Development] andoy:
You might want to check your BT settings on phone when connected. Ensure that the toggles for calls and audio are off. I initially had these ON and the caller couldnt hear me. Toggling these off solved the problem, at least for me.
[MTCD Software Development] elvega:
Does these not need to be toggled ON to ble able to receive and make a phone call or listen to audio ?

I made some tests since last time, and apparently the internal mic is working. but it is incredibly weak and i have to shout for it to pick up what i am saying.. guess external mic is the way to go. at least on these head units
[MTCD Software Development] typos1:
On some of these head units the external is better, yes.
[MTCD Software Development] Zeferino89:
Hi, I have this ROM installed since 2019 and it works nice, but this week I want to change the Shutdown delay when ACC OFF and I couldn't find this option. I was looking in extra settings where is supposed it is but it isnt. Anyone can help me with that??

Thank you!!
[MTCD Software Development] simerfougere:
Hi everybody,

I have a little problem in order to update this ROM on my erisin 4046 unit.

First of all, it is the first time that I try to update the firmware of my unit.

I think doing it well but I must doing something wrong because my unit don't want to do the update!

I did point after point the "How to install the firmware" guide but the unit give me the message "No update image file".

I copy the update.img on the root of my SDcard and try to put it in the GPS Card slot or SD Card slot and no detection.

I have tried to update via the recovery mod : another fail, no image found! :(

I have tested with another ROM and it is the same error.

Should I do something wrong in the process?

See below some pictures of my unit :

Thanks for your help guys! :)
[MTCD Software Development] typos1:
Just keep trying, this happens sometimes, try another sdcard, try a usb stick, maybe try @Hal9k_'s mod installer app.
[MTCD Software Development] popadic022:
But how to connect ext micrphone? I dont have microphone jack on my device :)
[MTCD Software Development] typos1:
Really ? Most units have one, are you sure its not on one of the additional cables tha plug into the bcak of the unit ?
[MTCD Software Development] popadic022:
Yes, sure.
[MTCD Software Development] typos1:
Youd have to take the unit apart and add one. Theres no mention of an external mic on label on the back explaining what all the inputs are for ?
[MTCD Software Development] Gatto83:
Hal9k Mod v2.5

07.04.2019

Firmware for platform MTCD-MTCE Rockchip PX3-RK3188 1024x600 800x480 based on the latest official version of HCT2.

This is the further development of my Mod v1.x based on Android 5.

Thanks graviton.no for the equipment provided for development.

Nougat for ALL RK3188/PX3.

hi i have this radio model android version MCU MTCD_JY_V1.74_2 version Android 5.1.1

I can put this modified rom greetings sorry
[MTCD Software Development] typos1:
Try @Hal9k_'s Lollipop ROM - this is not good for your unit.
[MTCD Software Development] popadic022:
How to set viper4android to power on on startup?
[MTCD Software Development] GigCSburger:
Hi, I tried to create a SD card using the SD Firmware Tool, but every time I try, I get 'Writing MBR Failed' error.

I tried many versions of the tool (1.4, 1.46, 1.56, 1.59) and also v.2.4 and 2.5 of the ROM. I used many SD cards including a SanDisk Ultra 128Gb. The other SD cards were 16Gb and 32Gb. I formatted them to FAT32 using Window at first, and then SD Card Formatter, and MiniTool Partition Wizard. Nothing seems to work. My computer is running on Windows 10. I can read and write to those SD cards otherwise.

My goal is to upgrade a HD MTCD_KLD_V1.96_1 running on Android 5.1.1, build number rk3188 using this ROM.

Any help would be appreciated.
[MTCD Software Development] GigCSburger:
Hi, I found a solution. I tried creating a bootable SD on three different computers running on Windows 10 x64 to no avail. Finally, I tried a forth one, and it worked! The difference between the three computers and the forth one is that the former had Windows 10 upgraded from Windows 7 or 8, whereas the latter was a factory-installed Windows 10. So there you have it. Now it's time to try installing this ROM on my HU.
[MTCD Software Development] typos1:
I doubt its the fact that one had factory Windows 10, its just that this happens sometimes.
[MTCD Software Development] GigCSburger:
I think you're right. I realized that the three former computers had ESET Internet Security installed, while the 4th one didn't. More likely than not, the antivirus is the culprit. I tried deactivating the real-time system defence in ESET, but apparently it didn't have any effect (unless I had to restart my computer after, which I didn't do). I guess there was something else that had to be deactivated, but I just don't know what exactly. And with the workaround, luckily I don't have a need to find out.

I installed MTCD-KLD 2.57 firmware on my HU with no issues today. I'm not sure if this is the latest, but that's what I was able to find. The system seems a tad faster, but I would know for sure in a few days. But before that, I hope to upgrade Android from 5.1.1 to Android 7.1.2 using this ROM v.2.5, and I hope it'll go without a hitch.

I intend to use two SD cards. I'll use a bootable one in the GPS slot to boot to Nougat, and then replace it with the second one containing the image. The reason for that is that to get to a USB port, I'd have to remove the dashboard. If the full SD card method doesn't work, I'll have to take the dashboard away.

I'll keep you posted.
[MTCD Software Development] typos1:
Wont be any anti virus either - I use Linux so I have no antivirus and it still happens sometimes. @Hal9k_'s modinstaller was sposed to sort it but even that doesnt always work.

You mean you installed the MCU MTCD KLD 2.57 ? That wont make it any faster as its an MCU not a ROM. Thats not the latest KLD MCU by the way, its MTCE 3.01, check the fileserver in my signature.
[MTCD Software Development] GigCSburger:
I tend to agree on MCU, but it felt that the system was a bit faster, however, it might have been due to other reasons. I noticed my HU doing that from time to time. Not sure what's causing it though. I rarely connect my HU to internet, because it becomes almost completely unresponsive. This is why I'm glad to have found this ROM and I'm willing to give it a try.

Thanks for the link to MCU, I noticed though that v.3.01 is MTCE not MTCD. I remember seeing a note somewhere that it's same, but can you confirm? EDIT: nvm, I found your answer in Post # 2095). Thanks.

I have so many issues with my HU that it might seem not really worth using it in its current state - LOL - I don't use WIFI, my dashcam is laggy and videos rendered are choppy, so I had to buy a stand-alone one, the backup camera image is awful, overall system is laggy and slow. Radio stations are not saved in order, and sometimes there is bad interference. Half of steering wheel keys don't function as intended, because the HU looses the presets, and I don't bother resetting them. Mic volume is awful, so I don't use the system for calls. I use offline maps of Google Maps, because if I connect my HU to internet, it will just hang. And finally, I'm not happy with the screen colors, brightness and contrast. The former look discolored and faded. Not sure if this can be fixed by software, or this is an issue with the LCD screen. I have an impression it was better when I bought it, so I kind of suspect an update is the culprit. I installed the update provided by the seller 3 years ago. It fixed my issue with BT (which I use for Torque), but introduced all these issues, which I didn't have before. I reached out to the seller on a few occasions requesting an update, but was told there was none. One good thing my HU has is audio sound. It is to die for. I use jetAudio and I hope this ROM has good audio too.
[MTCD Software Development] GigCSburger:
Installed MCU MTCE 3.01 this afternoon. I can definitely say that my HU became more swift considerably. I was really surprised. I even was able to watch videos when I was connected to the internet, something that I was not able to do since I installed the update 3 years ago. Furthermore, I was able to run Google Maps with video in the background. The radio was storing stations in order! And also the screen got somewhat brighter.

I decided to do the factory reset and see how it would change things. Once I did it, I noticed that the system got somewhat slower, but still faster than it was yesterday.

I wanted to proceed with the install of this ROM, but was not able to get into recovery mode. Does someone know how to?
[MTCD Software Development] GigCSburger:
Ok, I found a way to get into recovery mode. My HU is EONON GA6200F, and to get in there, I had to press the Power button and hold it until the lights flash 4-5 times, then release the button and 1-2 sec later short-press it again. If it doesn't work at first time, I had to do it again, and eventually it worked.

It's funny though that the HU boots into Android 5.1.1 recovery mode, not Nougat. Is it because it won't recognize the SD card? I tried inserting the bootable SD-card containng the image prepared by SD_firmware_tool into GPS and SD CARD ports, and USB with the ROM image into both USB ports to no avail. I guess the problem is that the SD Card is not recognized, so the system won't boot into Nougat. How do I force it?
[MTCD Software Development] typos1:
The MCU will have no effect on the speed of the HU. It can effect your internet connection though.

If its booting into Lollipop recovery you have a Lollipop ROM.
[MTCD Software Development] GigCSburger:
I'm going to try it tomorrow. Hopefully, it works for me too. :)
[MTCD Software Development] torsti:
whats the latest magisk I can use on this rom? if I try to update in magisk, it does not work.

If I change to micro G, I can't access playstore. Any solution?
[MTCD Software Development] Froost:
hello king man greetings from turkey, you are doing this job super, now i am using your 5.1 android rom, but whatever i do for android 7 does not work. As in your second message, i uninstall and install tik with the sd tool, but it creates sdupdate.img in the sd card, unfortunately it does not see it, but your 5.1 rom duptade.img is loading automatically somehow 7.1 nupdate.img sdupdate.img is not loading at all please help
[MTCD Software Development] Froost:
@Hal9k_ help me please 🙏🏻
[MTCD Software Development] typos1:
Whats the problem ?
[MTCD Software Development] typos1:
It is not recommended to use 7.1 if you only have 1 Gb RAM.
[MTCD Software Development] Froost:
there is no problem, as far as i read here, the users are satisfied, my problem is that i can't install roms, just help me with that.
[MTCD Software Development] Froost:
@Hal9k_

You are helping everyone, why are you ignoring me?

:(
[MTCD Software Development] typos1:
I can tell you from experience that 7.1 with ! Gb RAM, will not work properly unless you remove ALL google apps. All the help you need is already in this thread - I am not going to re-type it all !
[MTCD Software Development] Froost:
I've already read the whole article, my friend, I guess you don't want to understand. Even if I'm going to have problems with 1 gb ram, I need to install this rom first. How to install 5.1 software is already in the second message, but it doesn't work, I added the pictures, I get an error!
[MTCD Software Development] typos1:
I have written extensively about how to do it in this thread, I am not going to retype it or spend my time going through the whole thread for you trying to find it, the info is there, you have to find it.
[MTCD Software Development] Froost:
@typos1 ok my friend i will review 112 pages one by one thanks for your attention 🙏🏻
[MTCD Software Development] typos1:
Well, as I said, I d have to review each page one by one for you if you dont and I ve got too much to do to do that.
[MTCD Software Development] Froost:
I'm doing all the instructions in the normal order, but somehow it doesn't go to the nougat boot page! As you said, when the logo appears, I take out the usb, it doesn't work, I take out the sd card, it doesn't work.
[MTCD Software Development] Froost:
@typos1 help me please 🙏🏻
[MTCD Software Development] spiryt4:
My colleagues, can anyone help me install something newer than the orogram version on my radio. Provide a link to the correct software version?

Moi koledzy, czy ktoś jest w stanie pomóc mi zainstalować coś nowszego niż wersja orogramu w moim radiu. Podać link do odpowiedniej wersji oprogramowania?
[MTCD Software Development] zeus_r6:
Cannot believe how perfect this makes the head unit! Was about to replace it because it was laggy and outdated, but there's no way I'm swapping out this bad boy now. If only there was a way to have a bigger screen on the unit, that would be flawless!

Props to the mod author!
[MTCD Software Development] Froost:
@typos1 After a long struggle, I reached the 5.1 downgrade screen, but now I can't format it because none of the buttons are working.
[MTCD Software Development] typos1:
Press the power button to select or plug in a mouse.
[MTCD Software Development] kabelgleichung:
Is anybody using Youtube Music on a PX3 device? I works and plays music in general, but the UI is pretty unusable. While playing, I only see the tracks artwork (supplied by YT music), and cannot go back to choose other tracks or can open the current playlist. I have to kill the app and start over again to open other playlists or tracks. Seems that the app is not aware of the maybe special screen resolution or other parameters of the device.

Does anybody know a workaround for this?
[MTCD Software Development] Egeli:
I want intstall this rom.

But how can I backup my device's original rom?
[MTCD Software Development] typos1:
You cant, but you dont need to.
[MTCD Software Development] Egeli:
I found original firmware in here
[MTCD Software Development] typos1:
Yes, but its not needed.
[MTCD Software Development] Egeli:
I think it's best rom for me but here is the some problems

1. Vehicle controls not working. I can't change any car setting

2. I choosed poweramp instead of stock player. But when I push the button opening stock player

3. Sound level for radio or music player resetting on every boot.
[MTCD Software Development] typos1:
1 and 3 sound like MCU problems, have you mapped Poweramp to the button ?
[MTCD Software Development] Egeli:
I reinstalled the rom. Poweramp runs as I want.

But the 1 and 3 the problem continues.

I upraded the MCU from v2.75 to 2.92, 3.06 and 3.78 (latest).

I think the problem is with the can bus. Higher firmware version is required.
[MTCD Software Development] typos1:
The volume is nothing to do with the CAN Bus, its MCU related. Try changing the CAN Bus type in factory settings.
[MTCD Software Development] trkkrsy:
Hi, excellent, stability and performance. nice project. thank you.

But, the radio theme is very bad. Please upload "mtc radio 4 no panel apk" to this site?

@Hal9k_
[MTCD Software Development] Toxa33kot:
прошил свой планшет и не какой реакцыи кирпич кароче ROCKCHIP RK3188 SBAU32FT 1407
[MTCD Software Development] Egeli:
Navigation apps (Igo, Yandex) isnt working simultaneously with the FM Radio and stock music player. FM Radio or music app stops when I press Navi button.

But Poweramp and Player pro are working simultaneously.

What settings do I need to make for FM Radio and stock music player to work simultaneously with Navi apps?
[MTCD Software Development] jks8496956:
Hi guys, I've just installed this,

Any idea how to kill the screensaver? Super annoying. Also I can't get launchers to stop crashing. I also can't get any root file browsers to operate without crashing...any suggestions?
[MTCD Software Development] typos1:
Turn it off in settings.
[MTCD Software Development] meazz1:
I have this rm running but can't find Android Auto apk, any link or help is appreciated.
[MTCD Software Development] typos1:
Android Auto apk runs on your phone, not the headunit and you ll need a dongle for it to work on the headunit.
[MTCD Software Development] yat1in:
Hi,

I recently joined this.

My current installed version is:

Model: MAOE 1711 (1024x600 O)

Android 7.1.2

MCU Version: MTCE_HZC_V2.81d_1

CPU: ARM Coretex-A9 @1.6GHz (x4)

Kernel Version: 3.0.101+rocky@hctr930 #899

Build Number: px3-userdebug 7.1.2 NHG47L eng.hct.20180321.182024 test-keys

Please help how i can install Android 10 and Android Auto on my Car Head Unit.

Please share proper steps how i can do this as this will be my first time.

Looking forward your reply on this.
[MTCD Software Development] HaulerTruck:
Hello, I have a problem with bluetooth, after installing this rom, it connects to the phone, then disconnects and reconnects which prevents a phone call, before installing it on the stok rom, it was ok
[MTCD Software Development] Big_boy1967:
Good morning colleagues,

I'm from Romania, I don't know English well and I use Google translate to write to you. I have a Chinese navigation with Android px3-userdebug 7.1.2 N47L , MCU version MTCE_GS_V2.85f_3 and for several months I have problems with the radio resetting , losing radio stations and sometimes crashing . Another time after the reset it doesn't start anymore, then it starts by itself, without command. I tried upgrading from this site, formatted the USB to FAT32 and put in the versions I thought might be compatible with my Android but to no avail - I was getting an error message, probably it was not the compatible kit. I'm doing something wrong somewhere...or I haven't found the right Kit. can you help me please Thanks !
[MTCD Software Development] Big_boy1967:
Really no one can help me please ?????
[MTCD Software Development] Pavel-71:
Hello, sometimes it happens that a corrupted file is downloaded. Download and extract Version 2.5 again:

Hal9k_Mod_2.5_MTCD_MTCE_PX3_RK3188_1024x600_800х480_eng.rar:

Hal9k_Mod_2.5_MTCD_MTCE_PX3_RK3188_1024x600_800х480_eng.rar

drive.google.com

Format flash drive or sd card to FAT32, smaller size is better. Copy nupdate.img to the root directory. insert it into the slot and if the installation does not start automatically, select it in the settings or from the recovery. If it doesn't work, try another flash drive or sd card, or slot, the update should be done from the MAP slot. In the table that pops up before the update, check wipe data. In no case do not turn off the car radio or turn the key in the ignition. The update may take some time, so keep your battery charged. If it doesn't work, you can still try to install another factory firmware, I tried them all and they work normally:

MTCD

Посмотреть и скачать с Яндекс Диска

disk.yandex.ru

You can still update the MCU. The first thing I recommend is to make a backup of the MCU settings. Go to factory settings 126 and put EXPORT. Find the dmcu.cfg file and copy it to an external disk (if you don't specify the path, it will be in the root directory). If something doesn't work for you, use this file to return all the settings, the procedure is the same as for the MCU update, just use the dmcu.cfg file. MCU installation: unzip, copy dmcu.img to a formatted fat32 sd card or flash drive and run in settings/system/MCU updates. This installation is quite fast and in case of problems you can go back to the original version of older updates. Here the updates GS:

Attention, do not use the last MTCH file, only MTCE!!!

MCU for MTCD, MTCE, MTCP, Intel Sofia3g

Посмотреть и скачать с Яндекс Диска

disk.yandex.ru
[MTCD Software Development] Big_boy1967:
Thank you very much ! I will try to upgrade and let you know if it worked!
[MTCD Software Development] Big_boy1967:
Good evening....I am very glad that I managed to install the update....I hope that I managed to solve the problem !!! Thank you very much ! I didn't understand the second part of the instructions with the MCU, if I still have to do this too....After installing the first file, I was asked for another installation after the reset, but I'm not sure that in fact the update was not reinstalled again because I didn't remove the USB from the slot....Anyway, thank you very much for your help!!!
[MTCD Software Development] Big_boy1967:
Good morning ! After installing the firmware upgrade, this morning again my radio did not turn on from the navigation....Even when I searched for the radio stations manually, it does not find them....It seems that my problem is not solved ...I still have a chance to do something? or should I buy another device?
[MTCD Software Development] Pavel-71:
Try installing NavRadio+, it's free to try for testing, if it works buy the full version.

Update the MCU, if you didn't understand the instructions, try searching, for example on YouTube.

But it is possible that the radio chip is faulty. Replacement requires electromechanical experience and soldering skills.

Listen to the radio online if you have data. Or buy a new more powerful car radio, preferably 7862 FYT, TS10 7862, or px6, at least 4gb ram.

https://xdaforums.com/t/dev-new-navradio-ported-to-mtc-devices.4048899/
[MTCD Software Development] Big_boy1967:
Thank you very much ! I will study and try.
[MTCD Software Development] Big_boy1967:
Unfortunately, the MCU update files for Android 7.1.2 PX3 are no longer available....can someone give me a download link? Thanks !
[MTCD Software Development] Big_boy1967:
What should I download from this link? which would be appropriate? Thanks !

MTCD

Посмотреть и скачать с Яндекс Диска

disk.yandex.ru
[MTCD Software Development] Big_boy1967:
MTCD_ROI_V2.55.RAR...its Ok ?
[MTCD Software Development] Pavel-71:
No!!! you wrote. that you have MTCE_GS_V2.85f_3, you can only update GS, in any case do not use another manufacturer. Here is MTCE_GS:

MTCD

Посмотреть и скачать с Яндекс Диска

disk.yandex.ru

Do not use MTCH under any circumstances, it is for new boards.
[MTCD Software Development] tebukan:
I downloaded the rom. It is very slow when first opened. Especially the settings part is waiting for a long time. The system comes late. What can we do?
[MTCD Software Development] marchnz:
Revert to original firmware
[MTCD Software Development] tebukan:
😁 No, I'm thinking of fighting. I have installed a lot of apks
[MTCD Software Development] marchnz:
Great reply. Good on ya!
[MTCD Software Development] tebukan:
Good day guys. I am trying to update Magisk app but it is not updating. What is the solution?
[MTCD Software Development] tebukan:
Yes, after using it for a while, the system accelerated and became stable. I solved the Magisk problem by installing the old version and not updating. Are there any magisk modules you would recommend for this mod? Thank you