Phone hardbricked after following "[Solved] Secure Boot Error" thread. What do I do? - G3 Q&A, Help & Troubleshooting

Phone hardbricked after following "[Solved] Secure Boot Error" thread. What do I do?
I followed the one click root method, which worked out well. After that, I installed su, flashify, and twrp. I then tried installing a custom rom, but upon booting into recovery mode, I received the Secure Boot Error text. It wasn't too big of a deal since I could still take out the battery, put it back in, and boot normally.
But, after seeing this thread:
http://forum.xda-developers.com/lg-g3/help/help-secure-boot-error-trying-to-boot-t3054977
and how simple the instructions were, I proceeded to give it a shot. I entered in the 4 commands, powered off my phone, and attempted to boot into recovery mode. But unlike before when I booted into recovery mode, nothing appeared. No lg logo, backlight power, nothing. It's acting as it would if nothing was powering it. Now I'm stuck with a bricked phone, and sincerely need some advice on where to proceed next. Could someone help me?
Oh, btw, when I plug the phone the computer, I do "the device was successfully installed" message. The phone appears in device manager, under Ports as LGE AndroidNet USB Serial Port or as LG AndroidNet Phone under devices and printers. It doesn't appear under This PC at all.

probably one of the core system partitions has a version mismatch which is the reason why your phone isnt turning on because the partition wasnt written correctly
you need to kick it into Qualcomm USB HS Loader 9008 by shorting out the testpoint, other than that your phone is gone

Related

[Q] dead after tried unbrick method sbl1.img 2- aboot.img 3- rpm.img 4- tz.img

bad flash on my ls980 resulted in "bulk mode"
WHEN booting it shows only LG logo with secure booting error.
so I used the rebuilding or replacing partition method here http://forum.xda-developers.com/showthread.php?t=2582142
and now the unit won't do anything with any combination of butttons, cable inserts, different cords. left connected overnight.
Now NO BLINK, No logo, no backlight, MUERTO, ded, finito.
it was recognized by Win7 as Qualcomm HSUSB_BULK and now it says "unable to find driver."
Please help?
(i downloaded the proper files for the ls980 before using ubuntu to command them to the phone.)
similarly dead, LG G2 at this time
xMutant said:
bad flash on my ls980 resulted in "bulk mode"
WHEN booting it shows only LG logo with secure booting error.
so I used the rebuilding or replacing partition method here http://forum.xda-developers.com/showthread.php?t=2582142
and now the unit won't do anything with any combination of butttons, cable inserts, different cords. left connected overnight.
Now NO BLINK, No logo, no backlight, MUERTO, ded, finito.
it was recognized by Win7 as Qualcomm HSUSB_BULK and now it says "unable to find driver."
Please help?
(i downloaded the proper files for the ls980 before using ubuntu to command them to the phone.)
Click to expand...
Click to collapse
--
Any better situation at the moment?
I had D802 stock ROM rooted with IOROOT. After recent OTA update followed by automatic boot, it similarly showed only LG logo with secure booting error. No recovery or download mode possible. Then I followed those same http://forum.xda-developers.com/showthread.php?t=2582142"]steps as you and with very same results: phone does not "do anything with any combination of butttons, cable inserts, different cords. left connected overnight".
All ideas are welcome.
Thanks in advance.
xMutant said:
bad flash on my ls980 resulted in "bulk mode"
WHEN booting it shows only LG logo with secure booting error.
so I used the rebuilding or replacing partition method here http://forum.xda-developers.com/showthread.php?t=2582142
and now the unit won't do anything with any combination of butttons, cable inserts, different cords. left connected overnight.
Now NO BLINK, No logo, no backlight, MUERTO, ded, finito.
it was recognized by Win7 as Qualcomm HSUSB_BULK and now it says "unable to find driver."
Please help?
(i downloaded the proper files for the ls980 before using ubuntu to command them to the phone.)
Click to expand...
Click to collapse
Are you able to at least get into fastboot mode by holding down the VOL- button while plugging in the USB CABLE?
If you run a ADB DEVICES, you should see a device listed, it might say UNKNOWN, but that's ok.
I was in the same position as you and unfortunately I had to send my phone in to have the logic board replaced, they couldn't even JTAG it. I used this service, although it took a while.
Bad end.
Following instructions described on http://forum.xda-developers.com/showthread.php?t=2582142 (dd aboot, sbl1; tz; rpm) the phone , now; goes to DARKNESS, no light; no sound; no mode; except QDloader connection on port33.

[Q] Phone stuck in bootloop, can't flashboot anything. Suggestions?

Ahh my phone has had quite the past week on this CM12 Android 5.0 ROM...
I was just listening to music and checking social media on my phone when bam, it turns off.
I held the power button and it didn't turn on the first few times.
Then finally, it boots, but it won't get past the splash screen.
It's stuck in a bootloop and I can't get into the recovery. I can't factory reset it either.
I tried to go to fastboot and flash the recovery again, but my computer doesn't recognize my phone.
I have adb, fastboot, and all of the correct drivers installed and it won't do anything.
I tried flashing with "fastboot flash recovery twrp.img" but it just said "<waiting for device>" even though my phone was connected and in fastboot mode.
I don't know what to do. I can't boot it, I can't get into recovery, I can't factory reset it, and I can't fastboot anything.
What should I do? Please I am open to ANY suggestions at this point. I can't deal with this constantly not having a phone crap.
Thanks, it'll be much appreciated.
Extra Info:
Device manager lists my phone as this: "Unknown USB Device (Device Failed Enumeration)"
Every time I go into fastboot, my computer displays this message: "USB device not recognized. The last USB device you connected to this computer malfunctioned, and Windows does not recognize it"
SyrStorm said:
Ahh my phone has had quite the past week on this CM12 Android 5.0 ROM...
I was just listening to music and checking social media on my phone when bam, it turns off.
I held the power button and it didn't turn on the first few times.
Then finally, it boots, but it won't get past the splash screen.
It's stuck in a bootloop and I can't get into the recovery. I can't factory reset it either.
I tried to go to fastboot and flash the recovery again, but my computer doesn't recognize my phone.
I have adb, fastboot, and all of the correct drivers installed and it won't do anything.
I tried flashing with "fastboot flash recovery twrp.img" but it just said "<waiting for device>" even though my phone was connected and in fastboot mode.
I don't know what to do. I can't boot it, I can't get into recovery, I can't factory reset it, and I can't fastboot anything.
What should I do? Please I am open to ANY suggestions at this point. I can't deal with this constantly not having a phone crap.
Thanks, it'll be much appreciated.
Extra Info:
Device manager lists my phone as this: "Unknown USB Device (Device Failed Enumeration)"
Every time I go into fastboot, my computer displays this message: "USB device not recognized. The last USB device you connected to this computer malfunctioned, and Windows does not recognize it"
Click to expand...
Click to collapse
Make sure you aren't connected via usb to your computer when you attempt to force a reboot. It should be vol up and power until it reboots and then switch to vol down to enter hboot.
dottat said:
Make sure you aren't connected via usb to your computer when you attempt to force a reboot. It should be vol up and power until it reboots and then switch to vol down to enter hboot.
Click to expand...
Click to collapse
I can get into hboot and all that just fine. The phone won't boot, and I can't get into recovery is my problem. Oh and the fact that the computer doesn't recognize my phone in fastboot
Update: I just whipped out a really old computer running Windows XP and I installed the platform-tools and HTC One drivers on it. I hooked the phone up to the computer, and the drivers worked. I flashed TWRP and it flashed successfully according to fastboot, but it won't go into recovery still. What should I do now? I know I can RUU somehow (I'm not really sure how though), but I want to try and avoid that, if possible. Any suggestions? Thanks people!
EDIT: NVM it actually booted! What a success! This stuff is crazy!

G3 D851 hard brick or is it? Need help!!!!

Hello,
I seem to have really messed up my G3 and after days of research I have not been able to get anywhere with it. I've read posts of people having similar issues, but their solutions do not seem to work for me.
What I tried to do is flash the ROM, starting with TWRP. After installing TWRP and rebooting I was getting the "no command" message on the screen. I believe (this was days ago), I used ADB to remove laf and reboot the phone (for some reason I could not back it up). The phone rebooted in fastboot and it has been downhill from there.
No download mode. When normally started the phone just hangs on the LG logo. Vol- and power gets me to the "Factory data reset", but if I do that, it flashes "erasing" for a second and it goes back to the LG logo screen.
I can get to fastboot, however, any command that I enter in CMD or Linux terminal just shows up on the phone's screen and it does not do anything. Fastboot devices shows the device as "????????" in Linux and as "?" in Windows. I have tried multiple drivers for Windows.
I tried BoardDiag (3 or 4 different versions running as admin) and shorting the pins, but any time I try to run the checks, I get an error - "No response from device" or "Device was not found in dload trying flash programmer"
I also tried SmartBootDiag, but once it detects the phone, it does its checks and it disconnects the device, without giving me an option to flash anything. Looking at the logs, it does not find any anti-rollback issues.
Any suggestions would be greatly appreciated as I am not sure what else to try.......
Thank you.
Anyone??

"Secure booting error", D855

Hi,
so i recently got a bootlopping LG G3. My first thought was to just flash a stock rom - So i did. But as LGFT was flashing the USB cable accidentally plugged out and now i'm stuck at
Code:
"[[XXXX] Secure booting error" (XXXX changes with every restart)
and a blue/red blinking LED. I can't even access the downloadmode anymore.
My computer doesn't recognize the phone. No entry in device manager. No Qualcomm HS-USB QDLoader entry... Just nothing.
I don't know what to do now and I don't want to throw the phone away Do you have any solution? Thanks in advice!
Regards,
furi
Help pl0x? :c

Bricked my LGG3

Hello everyone,
so here's my problem:
Wednesday morning i took my phone out of my pocket and had a blackscreen. I tried to restart it and took out the batterie but i always got stuck in the LG Logo or a bootloop. Since i had TWRP and lineage OS installed, i tried to go into the twrp menu with the factory mode (power button + volume down) but after the "double yes" i always got a blackscreen.
So i went into the internet to fix it myself. I tried the "LG Flash Tool 2014" with the kdz. reset & the other Flash tool with the tot. reset. Both didnt recognize my phone. At this point, the only thing that worked was the download mode BUT not the recovery mode that usually comes after it. It just showed the download mode for some seconds and then a black screen. Later i noticed that my phone showed as a "qualcomm device" in the device manager, and the internet said that this was bad. So i used "Board diag" and "Smart boot diag" to fix it, but at the point where the device should have restarted, and the download mode should have worked WITH the recovery mode, i always ONLY had the 6 second download mode. After messing a bit with "Board Diag" i even got it to show up as LGE AndroidNet USB Serial Port in the device manager, which apparently was even more bad and only way to go back to qualcomm was to shorten the pins which i did. And it worked BUT now i was back with the qualcomm stuff.
So as you can see, i've prety much run i circles since wednesday... Iam now at a point where 3 different thingscan happen when I try to put my LG into download mode (volume up + usb cable):
1. Its recognized as a unknown device which is constantly connecting and diconnecting, so iam assuming my phone is bootlooping with a black screen.
2. The download mode icon shows on my phone and disappears after some seconds but my pc fails to recognize it.
3. Nothing happens and the screen stays black
When i only connect the usb cable, it shows a stuck charging icon for some seconds and then goes black. Connecting without a battery shows the "missing battery icon". I tried with 2 pc's, both having the LG mobile driver 4.2 and the qualcomm driver installed AND beeing in testmode. Both don't recognize the device. I also tried 2 batteries on my phone but it changes nothing.
I have a D855. And i know that my situation is pretty f*cked but maybe someone i able to help me anyway. Thanks alot.

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