Database Users

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

Nooblet - Need help with my 1+2

Hi,
I bought my phone from Aliexpress. I am very happy with it, but I am facing some issues:
It was pre installed with some diffrent kinds of bloatware.
- Baidu Browser
- DU Battery Saver
- DU Speed Booster
And more see picture -
{
"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"
}
From time to time it tries to download some kinds of files. Seems to be Bloatware aswell. See picture -
In addition to this, the phone also fails to install update: OxygenOS 2.1.1.
I get a message after the reboot, that the install failed, click to reboot.
I've tried to follow this guide "youtube . com/watch?v=-IGDZxeFHAc" with out hope. Most likely something that I am doing wrong.
I have managed to:
Click the RunMe bat file
Install USB drivers
Unlock bootloader
When I try step 4 Flash TWRP Recovery I get to the following message: " Did you see the "okay", then congratulations you have flashed in the recovery "
I did not see the Okay message, and when I press THE any key to quit and boot to recovery, nothing happend its just stuck on Fastboot mode.
Please if anyone could help me I would be very greatful!
Kind regards ..
Kissfiss

kissfiss said:
Hi,
I bought my phone from Aliexpress. I am very happy with it, but I am facing some issues:
It was pre installed with some diffrent kinds of bloatware.
- Baidu Browser
- DU Battery Saver
- DU Speed Booster
And more see picture -
From time to time it tries to download some kinds of files. Seems to be Bloatware aswell. See picture -
In addition to this, the phone also fails to install update: OxygenOS 2.1.1.
I get a message after the reboot, that the install failed, click to reboot.
I've tried to follow this guide "youtube . com/watch?v=-IGDZxeFHAc" with out hope. Most likely something that I am doing wrong.
I have managed to:
Click the RunMe bat file
Install USB drivers
Unlock bootloader
When I try step 4 Flash TWRP Recovery I get to the following message: " Did you see the "okay", then congratulations you have flashed in the recovery "
I did not see the Okay message, and when I press THE any key to quit and boot to recovery, nothing happend its just stuck on Fastboot mode.
Please if anyone could help me I would be very greatful!
Kind regards ..
Kissfiss
Click to expand...
Click to collapse
Download the latest stock firmware from http://forum.xda-developers.com/one...rs-official-oxygen-os-roms-ota-t3209863/page9 and flash that using TWRP. Accessing TWRP after flashing it using fastboot is volume down and power. There flash the stock rom, and it should give you a fresh new OP2

N7 (3G, 2012) bricked? Boot mode, no recovery. N Toolkit doesn't flash.

Hello there.
I am writing because I need your help on unbricking my Nexus 7 3G (2012). Yesterday night I was trying to upgrade it from 5.1.0 to 5.1.1 (from the OTA) and I couldn't because I had an error produced by Stickmount. It changed a file on system/bin which I tried to push manually (following some thread's intructions on XDA) and it didn't work, showing error Status 7 (unexpected content on file debuggerd).
Because of that, I decided to flash the 5.1.1 system image using Nexus Toolkit. I set it up so it'd download and install it automatically (using the "Flash stock + Unroot" option). Everything went okay and started the flashing process until the command prop window force closed mid flash, thing that never happened to me before (as I had tried many times flashing from zero my N7 before).
I tried to start the Toolkit again and the command prop window says it flashes bootloader and radio img's successfully, but then a line of code appears and the cmd window force closes again (it says "No se esperaba ( en este momento" or roughly translated as "The ( was not expected at this moment" into English) and my N7 turns off.
Next, I try to turn it on and it shows the Google logo and a green arrow saying "start". I press it and the N7 reboots to the same screen, saying "booting failed" at the top of the screen. If I choose recovery, the same thing happens.
{
"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 just can make it to boot to bootloader mode but I cannot flash the firmw (even when this mode must be selected in order to the Toolkit to start flashing). It shows the same line of unexpected code as above.
I tried pushing the files manually using ADB and I cannot may it work either.
What can I do to solve this? I've read that as long as you can get to bootloader mode you can unbrick a device.
I hope you could help me out. Thanks in advance.

Anyone?

Im not a expert, but so if you in bootloader, fastboot (android sdk) dont see your nexus? For check type - 'fastboot devices', if that return something, you can use it to flash recovery/or whole system.
Im linux user, so I dont know how to check how visible is device in windows - and whether drivers are working properly.
I'm sorry if I say the obvious, I just would like to help as much I can. Good luck!

wombat3 said:
Im not a expert, but so if you in bootloader, fastboot (android sdk) dont see your nexus? For check type - 'fastboot devices', if that return something, you can use it to flash recovery/or whole system.
Im linux user, so I dont know how to check how visible is device in windows - and whether drivers are working properly.
I'm sorry if I say the obvious, I just would like to help as much I can. Good luck!
Click to expand...
Click to collapse
Thanks wombat. Actually, the N7 is listed under adb devices. It starts the flashing process but ends automatically without finishing the installation.

Lg g2 completely dead (not detecting device as qhsusb_bulk)

is my Lg g2 completely dead
1) Lg logo is not coming(COMPLETE BLANK SCREEN)
2)unable to enter recovery mode
3)unable to enter download mode
4)not detecting device as qhsusb_bulk
5) when connected to computer a popup message(you need to format the disk before using it) and it is showing total 13 drives in which one drive has the image folder.
it is working fine until today afternoon when i rooted my phone running on stock lollipop with LG_One_Click_Root_by_avicohh and installed twrp recovery using autorec app and after that rebooted phone but it is not rebooted and above problem came . dont know whats went wrong with this process
please help me with this

krnkrsadula said:
is my Lg g2 completely dead
1) Lg logo is not coming(COMPLETE BLANK SCREEN)
2)unable to enter recovery mode
3)unable to enter download mode
4)not detecting device as qhsusb_bulk
5) when connected to computer a popup message(you need to format the disk before using it) and it is showing total 13 drives in which one drive has the image folder.
it is working fine until today afternoon when i rooted my phone running on stock lollipop with LG_One_Click_Root_by_avicohh and installed twrp recovery using autorec app and after that rebooted phone but it is not rebooted and above problem came . dont know whats went wrong with this process
please help me with this
Click to expand...
Click to collapse
you have to open it. 100% refurbished phone

Thanks bendor_007 for reply. but my phone is not refurbished and it is almost 3 years old with good working condition. when it is disconnecting from desktop some amount of light coming from top of screen for 1 or 2 seconds. do you think i have to follow http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
please reply me.but how to know whether it is stuck at boot logo or not
once again thank you very much

Could you please try to record it? Short video or describe in more detail? Also try looking up device manager while connecting the phone. + what variant.---ignore pls, I haven't seen it's showing the drives
Just ise srk tool which will fix the issue
Sent from my SM-G930F using Tapatalk

Thanks again bender_007 . please find below attachments for more details about showing drives before and after connecting to computer and for device manager
{
"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"
}
View attachment 3856857
and please find this https://youtu.be/7fZzK4czzgs video for the problem described by me in last post and
i am using lg g2 d802 international version

Stuck at ASUS IN SEARCH OF INCREDIBLE screen

I've seen this kind of problem alot here but here's my problem and why nothing helps.
Basically I wasn't updating my device I was just texting or something like that when my phone went black except the system outline(you know time, signal, wifi/net conection etc. on upper part of phone) so I forced it to shoot down and after that when I try to turn it on it's stuck at ASUS logo(I can't take picture of my phone but it's same as on the picture:
{
"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"
}
Now I tried factory reseting it and entering the recovery mode, none of it seems to help and the problem is that my PC can't detect my zefone when I connect it(and I'm pretty sure it wasn't detectable before this problem either so I don't think those are connected issues).
Any suggestions?

nc96 said:
I've seen this kind of problem alot here but here's my problem and why nothing helps.
Basically I wasn't updating my device I was just texting or something like that when my phone went black except the system outline(you know time, signal, wifi/net conection etc. on upper part of phone) so I forced it to shoot down and after that when I try to turn it on it's stuck at ASUS logo(I can't take picture of my phone but it's same as on the picture:
Now I tried factory reseting it and entering the recovery mode, none of it seems to help and the problem is that my PC can't detect my zefone when I connect it(and I'm pretty sure it wasn't detectable before this problem either so I don't think those are connected issues).
Any suggestions?
Click to expand...
Click to collapse
are you tried flashing system via ''apply update from adb'' command of recovery

Yes, as grady_8 said, Flash update using ADB from your recovery, but you need ADB and Fastboot drivers first, then your PC will able to detect your ZF.

https://forum.xda-developers.com/zenfone-5/help/bootlooped-bricked-returning-to-stock-t3358662
try this guide

You must be downgrade first, because the lolipop firmware not support adb flash. Download firmware save at same folder with file extracted. (Version . UL_WW.2.22.40.54-user.zip. )extract it to new folder, then click shift+right mouse, open command here. Then type fastboot flash boot boot.img then' fastboot flash recovery recovery.img , then ' fastboot flash fastboot fastboot.img. after that reboot to recovery manualy, then aply update from adb . Then In CMD type ' adb sideload <the name of firmware>.zip (example = adb sideload UL_WW.2.22.40.54-user.zip ) Wait the progress. Then finish.