Database Users

Verizon G2 Bricked! Demigod Crash Handler! No Nothing!

I was going back to stock using the KDZ method and USB cable came unplugged during the process. It gets the secure boot error and is stuck in the DemiGod Crash Handler. Computer only recognizes the COM and Modem. NO ADB, FASTBOOT, DOWNLOAD MODE, RECOVERY, SAFE MODE, NO NOTHING. Anyone have the same thing happen?

NBreunig3 said:
I was going back to stock using the KDZ method and USB cable came unplugged during the process. It gets the secure boot error and is stuck in the DemiGod Crash Handler. Computer only recognizes the COM and Modem. NO ADB, FASTBOOT, DOWNLOAD MODE, RECOVERY, SAFE MODE, NO NOTHING. Anyone have the same thing happen?
Click to expand...
Click to collapse
This exact thing happend to me yesturday ... Freaking DemiGod Crash Handler Error mesg on screen !! if u find the solution please do let me know as well

maxpain007 said:
This exact thing happend to me yesturday ... Freaking DemiGod Crash Handler Error mesg on screen !! if u find the solution please do let me know as well
Click to expand...
Click to collapse
Plug into your computer via usb. Open device manager. If you see qhsusb_bulk then follow this guide to fix. Unfortunately I didn't get that therefore there is no fix...However I was very grateful because Verizon let me get an early upgrade. I now have a G3.

DemiGod cras handler: critical error
Good day, if flash bootloader changer on my lg g2 verizon on cloudy3.3...
this is what i got at the end of the day. Is their a way out please help me out. What do i need to do to make my phone come up again because it will not boot saying somthing like....
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
please help

Well bro I was stuck with the same issue..
This happens to me when i flashed a wrong twrp recovery for lg g2 d801 and it was stuck in critical error i was also unable to access download mode ..
But my Good luck was that i recovered it by doing silly thing ?
So i do following things. But make sure u know the corrert version of your lg g2 to flash kdz file with lg flash tool and also must have lg drivers intalled.
Steps to perform.
1. While in critical error screen you have an option to press volume up button to boot into download mode( although it will not boot to download mode) but still press volume up button so your Pc can detect your phone.
2. Now flash a kdz file of your lg g2 with flash tool. ( you can google for it to download flash file for your lg g2 and how to flash it with lg flass tool.)
3. When you will try to flash it will fail..
4. Now power off your phone by pressing power button.
5. Now boot to download mode and flash the correct kdz with lg flash tool and u r good to go..
To acess download mode power off your phone immediately press volume up button and while keep pressing it and plug in usb cable and you will be in download mode

Secure boot error after reverting to KitKat via TWRP backup

Hey everybody! Please, I need urgent help!
So, yesterday, I upgraded my G2 D802 from rooted stock KitKat to the official European Lollipop, v30b. Before that, I made a TWRP backup of everything.
So, I rooted Lollipop, installed TWRP, and was about to install the new Xposed for Lollipop. Then, **** started freaking out and "LGSmartCover" kept crashing continuously, making it virtually impossible to navigate the UI.
Soooooo, I decided to revert back to KitKat via the TWRP backup.
Everything SEEMED fine, but now I cannot boot. I get the LG logo, then this message appears:
ERROR : boot certification verify
[800]_______________________
[850]
[900] Secure booting Error!
[950] Cause : boot certification verify
[1010]
[1060]_________________________
Click to expand...
Click to collapse
I do not seem to be able to enter download mode or recovery either.
My computer does recognise it as "qhsusb_bulk" when plugged in, though.
What do? I'll be eternally grateful if somebody can help me solve this.
UPDATE: I somehow managed to get into this "Hardware key control mode" by pressing and holding all three hardware buttons at once, while plugging the phone into the computer.
UPDATE2: Somehow, I managed to boot into Download mode, after doing the same thing over and over again! Trying to recover via LGMobileSupportTool now..
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

same error
How did you solve it ?

Hi,
I had a similar problem and I managed to repair the phone by using the TOT method with LG FlashTool v1.8 by reaching download mode.
Good luck!

If you can fully enter download mode(first screen and then the second screen),then try to flash a stock rom with LG Flashtool(KDZ method) or TOT method.
Since you were using TWRP,official LG Update tools will kill your phone if you try to flash the stock rom with them.

i have the same problem and i dont know how to reach download mode. when i connect my phome to the pc, it shows the same secure boot error. any help?

davvmaulana said:
i have the same problem and i dont know how to reach download mode. when i connect my phome to the pc, it shows the same secure boot error. any help?
Click to expand...
Click to collapse
Supposing the drivers are installed in windows, you need to have the phone plugged in to comp. and then hold volume-up+power until you get the "download mode" on your phone's screen

LG G2 - secure booting error after installing SuperSU

Hi guys.
Is my case here is still got hope? ?
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
The only reason is the wrong version of SuperSu. Maybe I use custom made SuperSu for OnePlus 3T.
Before I flashed that SuperSu Zip file using TWRP there is no such problem. Only after flash SuperSu cause this issue .. ?
Before this flash, LG G2's is a new fresh install custom LineageOS for LG G2. Everything is OK. Only no root access. TWRP already installed.
LG G2 still can go to Download Mode as shown by holding the power button and connect USB cable to PC. But the problem is the PC & laptop cannot install the required driver properly. I think I've tried installed/reinstall all the suggested drivers but to no avail.
I even cannot enter the recovery mode using the key combination. When the phone is power on, it will continue to show that Boot certification verify alert.. Ermm ...
Just now just praying PC / laptop can detect and use tools installed on my computer to get to boot into the recovery mode. But is it still possible?
Or this totally means that I will never can use my LG G2 anymore?
Thanks guys.

try to put the ROM via tot aver if you accept it
---------- Post added at 12:17 AM ---------- Previous post was at 12:16 AM ----------
mie_shariff said:
Hi guys.
Is my case here is still got hope?
The only reason is the wrong version of SuperSu. Maybe I use custom made SuperSu for OnePlus 3T.
Before I flashed that SuperSu Zip file using TWRP there is no such problem. Only after flash SuperSu cause this issue ..
Before this flash, LG G2's is a new fresh install custom LineageOS for LG G2. Everything is OK. Only no root access. TWRP already installed.
LG G2 still can go to Download Mode as shown by holding the power button and connect USB cable to PC. But the problem is the PC & laptop cannot install the required driver properly. I think I've tried installed/reinstall all the suggested drivers but to no avail.
I even cannot enter the recovery mode using the key combination. When the phone is power on, it will continue to show that Boot certification verify alert.. Ermm ...
Just now just praying PC / laptop can detect and use tools installed on my computer to get to boot into the recovery mode. But is it still possible?
Or this totally means that I will never can use my LG G2 anymore?
Thanks guys.
Click to expand...
Click to collapse
try to put the ROM via tot aver if you accept it

wtf same thing happend to me

This happened to me too once.
Security error normally means that you should have flashed bumpboot.zip after supersu.zip.
You should still be able to get into TWRP (PWR+Down until Logo appears, then Up+Down).
Some LG drivers seem to miss something. Try older versions or alternative generic ADB drivers.
TOT method always worked for me in the end.

Install SRK Tools to fix boot partition. After that, you could enter in download mode easily.
Edit: LinageOS have your exclusively SuperSU. Next time, install the proper version in lineageOS Website. That problem happen to me, same problem...

Thanks to all.
But whatever fix you suggested, first the laptop/PC needs to detect the phone and install the driver correctly first right?
That is where I'm stuck now.
Even my office laptop also have the same problem, cannot install the driver properly.
Any help?
Thanks.

Williknot said:
Install SRK Tools to fix boot partition. After that, you could enter in download mode easily.
Edit: LinageOS have your exclusively SuperSU. Next time, install the proper version in lineageOS Website. That problem happen to me, same problem...
Click to expand...
Click to collapse
Thanks.
I've already downloaded this before.
But I could not find the option you mentioned.
Can you please guide me more details.
And if the laptop still cannot recognized my LG G2 properly, can I still proceed?
Thank you.

Latest status at my office laptop...
I have tried numerous drivers but to no avail.
Any help?
Thank you.

I mananged to get into this when I let the phone boot with a totally blank and black screen...
Any help with SRK Tools in this case?
Thank you.

Thank you so much guys.
Yes this SRK Tool is really amazing - https://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076
I can now get back into recovery mode and most importantly my computer can detect my phone!! Thanks a lot.
But now it seems that my Lineage OS has become corrupted and I don't think I want to install it anymore because the display is very poor in brightness.
So my next question is with such condition ie improper Lineage OS installation on the phone right now, how do I get back to the latest stock OS.
How do I start?
Thank you so much for the help.

After flashing SuperSU do as @MB525 suggests, flash Boot Image Bumper/ bumpboot-v1.0-blastagator-signed.zip
http://www.gregtwallace.com/lgg2-projects/miscellaneous/
This needs to be done with Magisk too.

Same thing happen to me

mie_shariff said:
Thank you so much guys.
Yes this SRK Tool is really amazing - https://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076
I can now get back into recovery mode and most importantly my computer can detect my phone!! Thanks a lot.
But now it seems that my Lineage OS has become corrupted and I don't think I want to install it anymore because the display is very poor in brightness.
So my next question is with such condition ie improper Lineage OS installation on the phone right now, how do I get back to the latest stock OS.
How do I start?
Thank you so much for the help.
Click to expand...
Click to collapse
use lgup to flash the stock rom and ready in LG firmware:fingers-crossed::fingers-crossed:

LG Uppercut not recognizing LG G6

Trying to flash KDZ via Uppercut 1.0.0.0 but it keeps saying that it is an unknown model.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I have LG UP 1.14 installed with LG Flashtool 2.0.1.6 as well. Uppercut is installed in the same folder as LG UP exe.
EDIT: I would like to inform that the reason I'm doing this is because I can't seem to boot to android, no matter what I do. I keep booting into TWRP. I've tried flashing stock rom and restoring older ROM, nothing works.
Am I doing something wrong?
Thanks in advance
EDIT 2:
Ok a bit of a bigger problem I guess. I got Uppercut to work and flashed 15A KDZ but now only boots to bootloader and is now locked. Cannot OEM unlock with unlock.bin because i have to allow OEM unlock in Android Developer settings which I cannot even boot to... I'm at a loss. Should I flash a modified boot image? Not even sure where to get it.
Thanks again.

A bigger problem indeed. I'm no expert, but I've heard that flashing a stock KDZ is the only escape from this all. I see in the screenshot it mentions fulmics; are you running a rom other than stock lg-g6, or deviating from stock in any other way?

mwsundberg said:
A bigger problem indeed. I'm no expert, but I've heard that flashing a stock KDZ is the only escape from this all. I see in the screenshot it mentions fulmics; are you running a rom other than stock lg-g6, or deviating from stock in any other way?
Click to expand...
Click to collapse
I actually flashed stock 15a kdz but it still shows fulmics for some reason.
I ended up sending it to LG for warranty repair. I saw another thread that addressed this issue. Apparently it is a common problem when updating via OTA when on Lineage OS

Hello,
I'm in the same situation.
How did you solve it?
Did you send him into service? I have a guarantee for him.
Thank you.

I have same problem with flash v20b kdz firmware via LGUP. LGUP not recognized phone no model unavailable. Do you have any solution? I dont want root phone or unlock bootloader only I want flash new stock firmware

jurastefo said:
I have same problem with flash v20b kdz firmware via LGUP. LGUP not recognized phone no model unavailable. Do you have any solution? I dont want root phone or unlock bootloader only I want flash new stock firmware
Click to expand...
Click to collapse
And I have that problem after installing v20b. If I can not find a solution here, I'm probably going to put it in service.
Our problem is that you do not get into the download mode, get into the fast boot when we try to get into the download mode.

I've managed to make it work!
Download the firmware here: https://mega.nz/#!sZJV1K4D!V6-UNTdsc...uOuSVlxVJ5WJjE
There's also a way to get downloade mode:
Just hold down button and power button. Just when you see LG logo leave power button for a second. Push power button again and hold with down button. Now press yes twiche for the hard reset prompt. Now IMPORTANT, when screen goes black immediately press and hold up button. While holding up button plug usb cable into the PC. Now use Uppercut 1.0.0.0 and flash your kdz.

same problem here mine H870DS
same problem here mine H870DS

Z17 Mini S - Bootloop / stuck on Boot Screen

Hey guys!
Recently got myself the Z17 Mini S and installed TWRP (chinese version).
Then I rooted the phone, cleaned everything, and installed the latest ROM (found on the Nubia Homepage).
Worked fine, and so I installed GApps.
But I installed the whole package with lots of "useless" apps (Google Reader etc.) and wasn't able to uninstall them for some reason.
So I wiped everything again, cleared the caches, and re installed the ROM.
Now the phone is stuck on the "Nubia" logo when booting up and I can't start it anymore at all (TWRP still works).
I tried wiping and reinstalling the ROM several times, and also tried the older versions of the ROM, but nothing fixed my issue, still stuck on the boot screen.
I'm in a really desperate spot right now, so thanks for any kind of help!

install the rom, reboot. If the phone stucks on the nubia logo, go back to the TWRP, root the phone, reboot, and it will boot normaly

bakchich said:
install the rom, reboot. If the phone stucks on the nubia logo, go back to the TWRP, root the phone, reboot, and it will boot normaly
Click to expand...
Click to collapse
Hey, thanks for replying!
The phone should be rooted ( I managed to do that before it crashed if I recall correctly) and I tried reinstalling the ROM and cleaning everything after that already, without any success.
Here's some more information I can provide:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
https://i.imgur.com/t19Ko8V.png

Ok, got a little update:
I found a way to recover the phone by going into the Nubia emergency recovery and flashing the ROM with it, which makes it work again.
But now the phone isn't rooted anymore and I can't install GApps, because named emergency recovery can't install the GApps .zip.
So I reinstalled TWRP for that, but now it's stuck at the boot screen again!
I don't know how the root the phone without TWRP, but as soon as I install TWRP I can't boot it anymore.
And without root permissions, I can't install GApps with the OpenGApps app either...
edit: just saw your reply on the other thread, I'll give it a try!

Stuck at this screen
I had RR_N_5.8.5 on my z17 mini.
Tried to install LOS15.1 but error:7 was coming continuously.
I used nubia emergency tool 1.1.4 recovery to go back to original ROM as RR was not even allowing reset.
Now stuck at this screen YOU HAVE SHOWN.
adb devices - no device shown
fastboot devices does not show any device
windows device manager shows Qualcom HS-USB 9008 (com14)
nubia emergency tool detects device but can only run recovery, other two options does not work.
Got stuck............................how to flash twrp now............................PLEASE HELP.
==========================
ALL DONE
=========================
I uninstalled all mobile drivers from my windows10.
Rebooted and reinstalled only ZTE and Qualcomm drivers.
Started and done.........................................Installed TWRP without rooting---yes ---without root
When restarted and checked with magisk - it said device not rooted.
Went back to twrp and installed superSU .. and done.
I have problems :
The device is working perfectly ---- many many many thanks for the ROM on oreo.
1. Battery performance is poorer than original - originally this device was never a good performer.
2. THE MAIN ISSUE - twrp can read the SD card, installs file from it but after booting it is not able to access the SD card - says non supported. Tried with 16/32/64/128GB cards. Tried to format SD with it simply can't format and quits after 20% with every card.
3. A typical problem same with A710FD and Z17mini(6GB128GB) - can not receive calls if and only if google phone is not the default app. Tried Drupe, Contacts, True Phone, tru caller and whatever I got on playstore!
Its only 20Hours after installation so may some other issues pop up later. I dont play games or anything. Minimal user in true sense.
BUT AGAIN---MANY MANY THANKS FOR THE HARD WORK TO GIVE THIS ROM.
Risuno said:
Hey, thanks for replying!
The phone should be rooted ( I managed to do that before it crashed if I recall correctly) and I tried reinstalling the ROM and cleaning everything after that already, without any success.
Here's some more information I can provide:
https://i.imgur.com/t19Ko8V.png
Click to expand...
Click to collapse