MTCD unit black screen after Malaysk restore, but flashable - MTCD Android Head Units Q&A

Hi guys,
I have an Erisin MTCD unit, that I was trying to flash with Malaysk from the tutorial on the forum: https://forum.xda-developers.com/android-auto/mtcd-software-development/rom-malaysk-roms-px5-2-4-gb-8-0-android-t3762724
Since it does not have any physical buttons and had already Android 8 installed on it, I flashed it with this method: https://forum.xda-developers.com/showpost.php?p=78429554&postcount=2517
The flash went through, but when I did a "Factory reset/data wipe" it went into a loop and kept flashing an error.
I waited and ended up restarting the target, since I thought, it crashed. (shouldn't have done that probably, but since it was just a factory reset, I thought it would be fine)
Since then the unit is in kind of a weird state. When i turn it on, the display stays dark.
If I create a bootable SD card and insert it before turning the unit on, I get the "Installing Update" screen and at the end it tells me to remove the SD card.
The problem is, since I don't have a way of physically getting into recovery mode, after I remove the SD card, the unit restarts into the black screen and that's it.
So I can't flash any other software on it, until I go into recovery mode obviously. Is there a wat to trigger the recovery mode automatically, after flashing the recovery menu from the restore instructions?
I tried to get into recovery mode with the only button I have, the reset button, but no matter how long I press and hold (and then shortpress) it, it never seems to trigger any kind of mode.
Any ideas are appreciated!
Thanks!
SirThanksalot

Related

[Q] [Help] Stuck in boot on Google

Alright. This is a 100% stock Nexus S- nothing "development" wise was done to the device, no system tools installed that could cause issues, basically nothing but basic apps loaded on the device.
It just started today. I was working on my bf's Vibrant (another, more successful story) and grabbed my Nexus and hit the power button and it did not turn the screen back on. Holding the power button down did not reboot the device, and none of the buttons would light up or function.
So, I pulled the battery. Now every time I try to boot, it hits the "Google" screen and stays put. I left it alone for 5 minuets hoping it would finish booting and nothing. The soft buttons will light up, and if I touch them they register the touch but it does not help the phone to boot.
I do know that the phone was basically dead right before this happened, and at first I thought it was just dead. However, its been on the charger for at least 30 minuets- which should have given it enough of a charge to boot up, and still nothing.
What could cause this issue?
I did install a couple of new applications today, and I know the market updated a bunch of them but they're all apps that I've had on several phones (minus the two new ones today) and have never had an issue with any of them. The two new ones I downloaded were OS Monitor, and a 2G/3G toggle for hopes of improving some battery life.
But those are the only two things I've done differently. I've only been using the phone for a week but I haven't had any problems at all, before this.
Now- if worst comes to worst I can seem to get into the bootloader, and through that, stock recovery. So I can try to do a factory reset and wipe cache but without a backup I really kinda hope thats a last resort.
Please help, and let me know if you need any more information.
Thank you!
I understand that you're fully stock which I assume means you have a locked bootloader (everything I say from here on out assumes as such)? First, I'm going to also assume that you didn't update to 2.3.3? If not, then follow the steps in this guide to boot into a custom recovery and from there go to backup and restore and do a NANDroid backup. Now go to mounts and storage and mount USB storage (or whatever its called, don't have my phone right here). Plug your phone into your comp and copy over whatever you'd rather not lose from your SDcard (just in case you have to wipe). Now download the 2.3.3 update from here and put it on the root of your SD card. Now go back and flash this. Reboot and see if you're golden. If so, great, if not try a factory reset.
If that doesn't work go through the steps again to boot into a custom recovery, you might have to unlock your bootloader and wipe all your data (again) and restore your backup and try doing a factory reset with that. Don't worry about unlocking the bootloader, it can be relocked with a simple command and it won't wipe anything to relock it.
Here is the command just in case:
Code:
fasboot oem lock
I got all the way to having clockwork recovery booted up on the phone, but nothing would mount. Everything gave me an error, and factory reset froze...
I don't think there is anything I can even do from here, is there?

Noob question - white screen

i've searched high and lo, been reading up on this forum for awhile now, reading the tutorials, etc. i must now hang my head in shame. managed to root my phone, put android revolution ROM on it, yay go me. decided i wanted to restore back to previous ROM. couldn't boot into bootloader via vol - and power, so i used ROM manager. went into backup/restore and picked a previous version. rebooted phone and now it hangs on the white HTC screen. i can take my battery out and put it back in and it will charge my phone. i think this might be my mistake, the battery was yellow when i tried all this. but it's been charging for awhile now, and still nothing. when i try to turn it on or the vol- and power it gets stuck on the white screen and is no longer charging. i've looked and looked and seen some suggestions of booting into recovery, etc. but i can't for some reason boot into anything. i'm not sure if i'm doing something wrong or what. any help or suggestions would be greatly appreciated.
ok, when i take the sd card out, it boots just fine, so what would my next step be?
Haha....you didnt wipe your device clean before restoring from your backup!
Remove the battery and place it back in, hold the bottom volume button and lock button...you should boot into Hboot(white screen also)
give it like 20 seconds because it will search for a file and select the recovery option by scrolling using the volume keys.
factory reset phone and go into advanced-wipe dalvik-cache
now install any rom or any backup!
You must do this for every ROM and every restoring of a backup...
thank you for your response, but i corrected my mistake, and wiped everything, but the backups i was trying to go back too still didn't work. still got stuck on the screen. i was however able to flash the ROM i had, but it's very basic, and nothing like what i flashed from it originally.

I think I have bricked my device after update.

So everything went smoothly after the update but I couldnt get it to factory reset. Kept saying unable to mount. So I tried the repair option on TWRP and that wiped the OS. Now I can't get into recovery only the fastboot function. What can I do?
fastboot boot twrp.img on your PC?
Maybe you are using the wrong one, the inoffical twrp comes in Android P and Q flavour
I have also had the issue where neither started, after shutting down and waiting for a while it worked again
I had same problem totally black dead screen, nothing happens for couple of minutes, I tried all key combinations and it didn't respond. Somehow after a while (like 5 min. ) I tried vol up+down+power button, it took me to fastboot screen. Then I flashed everything back in, downside Lost All data even internal storage.

Update 11.1.1.1 installed successfully on OP 6T but is stuck in loading

Hello,
Anyone else having problems after this update? I did it now and my phone does not start anymore. Or at least it hangs in the loading screen with the red and 2 white dots.
I shut it down with power and vol + twice but with no effect. It does not react on the power cable being inserted. When it's powered off and I insert the cable it starts to the loading screen, currently showing 14 %.
How to solve this?
Thank you!
I can boot into recovery or fastboot. Not sure how helpful that is though.
try to format data if you're able to go to recovery. as long you have recovery and fastboot intact, it's basically not ****ed up yet
dewa5227 said:
try to format data if you're able to go to recovery. as long you have recovery and fastboot intact, it's basically not ****ed up yet
Click to expand...
Click to collapse
But how can I save my data? I mean when I'm in recovery I have to enter the password before, so the data gets decrypted. But with USB attached I can only see 5 files on my desktop computer.
I emptied the battery and loaded it fully, then restarted. After a long time it say "This device has entered an unstable state. Please try rebooting your device using the exit button below..." and so on.
I hope a data recovery company isn't the only solution.
Also, is there no way to repair it? Like running the update again or something?
Why is there no „apply update from adb“ option in the recovery menu of OnePlus? Apparently I could have used that to backup all my data from the phone.
I tried wiping the cache partition without success so far.
So did Android squeeze security so much that not even the owner can save his data in this status now anymore? A bit sad when they themself break the phone with an update then.
What about these recovery services that also recover data from harddrives? Do they break the phone when they do their thing?

Question Bricked can't Seem to access anything

Hi everyone.
Last night my phone ran out of power and when I charged it back up it wouldn't boot at all, so this morning I decided to try and fix it but I think I have just screwed it up even more to the point that its completely bricked.
I could still access TWRP and tried to reinstall the firmware and flash TWRP through the checkbox execpt about 1 minute in the screen went off due to the time out, but the screen wouldn't come back on at all so I left it for an hour just in case if it was still running in the background, after this time I hard restarted the phone and entered TWRP again and but it didn't install the firmware properly and my computer wasn't reading the phone properly so as a test I tried to swap bootloader from A to B stupidly and now I can't seem to access anything, only thing I can do is the menu where it says start, power off, recovery mode and restart bootloader. Pressing any of these settings seems to just put me back in to this menu again.
When plugging in the phone in to the PC it make's no noise at all as well.
Have I completely hard bricked my phone? Or is there a way to fix it?
Thanks Ben
All fixed I flashed the RAW firmware

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