Selected the wrong costumer in factory settings Help... - MTCD Android Head Units Q&A

the unit start because my phone conects to it but the screan dos not work and i can go in recovery mode. (screen works fine in recovery mode) and the buttons don't work i already tried to update mcu but still the same problem(mcu file from the manufacturer)

Is it an MTCD/E

MTCE_HXD

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[HELP] Nokia 7 - Stuck on 'Powered by Android", unable to enter recovery

Hello,
It seems I've been getting in ever deeper trouble with my new Nokia 7. I received it from an Asian vendor with the 'multi-language China ROM' pre-installed. I noticed there were no updates available so I started investigating and (mainly through this forum) found out that this ROM is bad and that I should flash the stock China ROM.
The first thing I did was boot into Recovery Mode and do a Factory Reset, naively hoping this would get me to the stock ROM. Prior to this I did not enable USB Debugging nor the OEM Unlock from the developer settings.
After restarting I got to the setup wizard and indeed noticed I could choose many languages. A few steps ahead through the wizard I got stuck at the 'Checking for Updates' screen. I was unable to get past that screen and posted about that problem in another thread. I tried the Factory Reset and wipe cache data options a couple more times without results.
After that I installed OST LA 6.04 and downloaded the stock ROM (from here). I knew I would be unable to unlock the bootloader from within the OS (because I couldn't complete the setup). Yet I tried to flash the stock ROM anyway to see if it would improve anything. It didn't. Then I tried all possible options and combinations from the OST LA 6.0.4 app.
After that, stuff got worse. I'm unable to enter Recovery Mode and the device automatically restarts when I shut it down. No matter what key combinations in whatever way I use (with and without USB plugged into power and pc) I cannot shut the phone down (well..I can shut it down, but it automatically restarts after 2 seconds) nor can I get it to boot into Recovery Mode. Holding the Vol+ & Power key for example just restarts the device to the 'Powered by Android' screen where it stays in indefinitely (unless I hold the keys, than it restarts again after 15-20 seconds).
What I can do is boot it into Download Mode. From there I can interact with it through the OST tool (though I can't seem to flash anything since it's locked) and Fastboot. ADB isn't responsive since I hadn't enabled USB Debugging. I did find out that with Fastboot I at least can shut the phone down with
Code:
fastboot oem HALT
and unplugging the USB cable. Even booting with Vol+ & Power from there won't bring me to the recovery screen.
So, yes, I've been quite stupid at more than one point. But now what are my options?
1. Can I still unlock the bootloader with an unlock.bin file and the Fastboot commands?
2. What do the automatic restarting and unreachable Recovery Mode signify? Is the one caused by the other? Or does it imply hardware problems? I haven't been able to find much, if any, information regarding these issues on the webs. (And I've searched, a lot, believe me.)
3. Could anyone share the 'multi-language China ROM'? Since I figure that maybe the device will let me flash that so that I at least will be able to unlock USB debugging.
I hope some expert could shine his/her light on my situation.
Thanks. Bam.
Someone messaged me the solution to the above problem. For anyone that might later be interested:
I had to reflash the (locked) bootloader following the exact steps shown in the below youtube video. It's in Russian (I guess), which I don't speak, but it's well possible to perform the same steps as the guy in the video. Good luck!
youtube dot com /watch?v=-I1BlyzPeZk
Saya tidak menemukan videonya di youtoube. Mungkin sudah di hapus. Saya memiliki masalah yg sama

Can't Use Buttons In Recovery Menu After MCU Updates (MTCD PX-5 Android 6.0)

I was able to use my car's radio power on/off button in my MTCD device's recovery menu without any problem when i first bought my device. From that time i installed every MCU update (my device is from Witson, i used Witson's MCUS) to my device.
Now i found that i can't use the same button in recovery menu. Problem is i don't know which MCU version i should revert. Everytime i install wrong version MCU and enter recovery menu => i must disconnect car battery to reboot my device.
Is there easier way?

MTCD PX5 Device Suddenly Can't Boot

I have MTCD PX5 Android 6.0 device. I was updated recovery to Android 10 and installed Witson's Android 10 rom and was using it without any problem for 2-3 week. Today, suddenly my device stopped booting.
When I start my car head unit shows Android 10 logo for some time and than it goes to black screen. (Without backlight). It looks like it turns off.
I want to enter recovery mod and reinstall the rom. How can I enter recovery mod in this situation? My doesn't have a physical power button and I was able to enter recovery mod from rom by using an app called "Quick Reboot". When you select the recovery mod it simply reboot to recovery mod. Than I was able to select recovery options with external keyboard. The bad thing is as i said device can't boot in to rom.
I turned off the device by removing the battery and than connected keyboard and turned device on. While it was trying to boot I keep pressed ALT(Right side) + PrintScreen and keep pressing & releasing 'E' button but nothing happened.
How can I enter recovery mod without dissamble the unit?

Device screen totally broken - How to factory reset

Hi all,
my dog just tried my wifes G930F as chowing bone and destroyed the display.
It still seems to work properly since startup sound is there, lights etc working.
I want to sell it now as spare part device on ebay, therefore I would like to wipe data.
IIRC it should have TWRP on it as well as usb debugging enabled.
I tried to go into recovery (Vol Up + Power + Home), its making an USB sound, but adb shell is not recognizing the device.
Is there any option to wipe all data in this state? As named, there is no screen at all.
Thanks Christian
I just tried to enter download mode and flash latest TWRP (3.5) with ODIN (3.13) but i failed just with "FAIL".
hey,
btw you could always factory reset using the stock recovery and watch some videos and see how many presses you have to do to reset the phone. Can't help you now so best you can do is get a new screen and then daily it again.

Vanku AA0611B firmware

Hi there,
i got a Vanku AA0611B heat unit a week ago. Rooting worked fine but yesterday i moved the default media player from system apps to normal apps and now i am stuck in black screen. I am searching for the stock ROM to recover. Also it would be nice to know if someone knows how to enter the recovery. The ways i found with holding reset sadly does not work.
Is it an MTCD/E device, post MCU version
How can i do this with black screen and not booting?
It is booting up again. Tomorrow i will look up the exact MCU Version.
The support sent me a link with the original firmware and the mcu image( https://mega.nz/folder/zCRizRAa#Fb966XsXBuTZDoVPS532mA )
The support told me, that the update should start automatically but it didn't. I had to enter recovery.
For others having problems: the manual says "Press Home-Button and hold, press RST and release, release Home. Press Home and release"
My problem was that i thought the Home-Button is the button which brings back the home screen and has a house-icon on it, but the manual is talking about the volume knob.
The SD-Slots are not marked. The SD-Card must be insert in the left slot.
From there you can install dmcu.img and update.zip within a few minutes
MCU Version is MTCE_HT_v3.71_1
So maybe a mod can move this topic to MTCE

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