Develop Bugs

[Q] Secure Booting Error! Cause: boot certification verify

Hello all,
Well, it's here... Unfortunately my phone got bricked last night
Can't boot into main screen and can't go to download mode anymore. The cause is, my phone was stuck when upgrading firmware and there's nothing to do about it except remove the battery, and then, BOOM!... "Secure Booting Error! Cause: boot certification verify"
Any LG G3 users here already experienced this problem?
I followed the solution on LG G2 sub-forum, but my ubuntu doesn't detect the port, although Windows recognized it.
If this happens to your G3 and you solved it, please share your experience
Thanks

haris182 said:
Hello all,
Well, it's here... Unfortunately my phone got bricked last night
Can't boot into main screen and can't go to download mode anymore. The cause is, my phone was stuck when upgrading firmware and there's nothing to do about it except remove the battery, and then, BOOM!... "Secure Booting Error! Cause: boot certification verify"
Any LG G3 users here already experienced this problem?
I followed the solution on LG G2 sub-forum, but my ubuntu doesn't detect the port, although Windows recognized it.
If this happens to your G3 and you solved it, please share your experience
Thanks
Click to expand...
Click to collapse
Help me too

haris182 said:
Hello all,
Well, it's here... Unfortunately my phone got bricked last night
Can't boot into main screen and can't go to download mode anymore. The cause is, my phone was stuck when upgrading firmware and there's nothing to do about it except remove the battery, and then, BOOM!... "Secure Booting Error! Cause: boot certification verify"
Any LG G3 users here already experienced this problem?
I followed the solution on LG G2 sub-forum, but my ubuntu doesn't detect the port, although Windows recognized it.
If this happens to your G3 and you solved it, please share your experience
Thanks
Click to expand...
Click to collapse
If Windows recognizes it then try using LGflashtool again.
Sent from my LG-D851 using Tapatalk

Skizzy034 said:
If Windows recognizes it then try using LGflashtool again.
Sent from my LG-D851 using Tapatalk
Click to expand...
Click to collapse
Windows does not recognize the phone...

Skizzy034 said:
If Windows recognizes it then try using LGflashtool again.
Sent from my LG-D851 using Tapatalk
Click to expand...
Click to collapse
Not at all.
Finally, I claimed my warranty with LG, and the motherboard got replaced.
It's all working now

You could have unbricked it... I've done that twice already

im stuck in this, how?

I'm stuck at the same thing since yesterday.
could you tell us the solution @nofait?
I've been researching about this and noticed one thing,
if I hold the lg combo (vol up + usb cable), and keep holding it until it passes the secure boot error and the screen becomes black,
my device (d855) goes to the Qualcomm Download Mode (it's detected as ''Qualcomm HS-USB QDLoader 9008'' on windows 8.1 x64)
Apparently, on that mode we could use Qualcomm tools (QPST) to reflash the bootloader and the matching laf image (the one that brings up the download mode)
so we could then flash any KDZ using LG Flash Tool.
To do so we need to extract the bootloader files, sbl1.bin, aboot.bin, rpm.bin, tz.bin, boot.bin, and laf.bin, from a tot/kdz firmware converting them to mbn format.
Then using QPST eMMC Download Tool, we load the partition table xml and 2 image files: the flash programmer file and the qcom boot image, which I'm still trying to figure out where to get them since I can't dump my own phone, and then we might be able to recover it.
I'm still looking into it and hopefully we can find a way.
I did not send my phone to lg service, yet, because I think they will take too long to fix it.

It happened to me a few days ago, but i had TWRP fully working so i could simply flash a ROM and then recover my things.
That thing about windows recognizing it as a msm8474 was a drivers issue (al least for me), i have a S5 too, i think that when i was tryng to get Heimdall working it changed the drivers (as you may know, s5 and g3 have the same board), so i just simply uninstalled it and then reinstall everything using .exe files from LG's website, after that windows 8.1 recognize it perfectly and i could flash KDZ without problems.
Other experience i had and that may help is what happened to me using an LGOG, couldn't boot, no recovery, no nothing, just trying to turn it on, it managed to get in fastboot mode (but with screen off and red LED all the time),from that point it was just about typing commands and flashing img to get it working

diego-ch said:
I'm stuck at the same thing since yesterday.
could you tell us the solution @nofait?
I've been researching about this and noticed one thing,
if I hold the lg combo (vol up + usb cable), and keep holding it until it passes the secure boot error and the screen becomes black,
my device (d855) goes to the Qualcomm Download Mode (it's detected as ''Qualcomm HS-USB QDLoader 9008'' on windows 8.1 x64)
Apparently, on that mode we could use Qualcomm tools (QPST) to reflash the bootloader and the matching laf image (the one that brings up the download mode)
so we could then flash any KDZ using LG Flash Tool.
To do so we need to extract the bootloader files, sbl1.bin, aboot.bin, rpm.bin, tz.bin, boot.bin, and laf.bin, from a tot/kdz firmware converting them to mbn format.
Then using QPST eMMC Download Tool, we load the partition table xml and 2 image files: the flash programmer file and the qcom boot image, which I'm still trying to figure out where to get them since I can't dump my own phone, and then we might be able to recover it.
I'm still looking into it and hopefully we can find a way.
I did not send my phone to lg service, yet, because I think they will take too long to fix it.
Click to expand...
Click to collapse
Hi,
You'll need to use a Windows 7 machine and the proper LG USB Driver (first post of this message) and change it to the COM41.
Do a BOARD DL and when the screen comes up and tells you to not touch it, ignore and press OK. Then press the power button and at the same type touch the "Normal +power". It should reboot and everything should be fine
Cheers!

nofait said:
Hi,
You'll need to use a Windows 7 machine and the proper LG USB Driver (first post of this message) and change it to the COM41.
Do a BOARD DL and when the screen comes up and tells you to not touch it, ignore and press OK. Then press the power button and at the same type touch the "Normal +power". It should reboot and everything should be fine
Cheers!
Click to expand...
Click to collapse
So,
Should I use windows 7 32 bit or is it fine with 64 bit?
Will I need a .TOT file and a DLL for my model ( D855P 16gb ) or can I use a KDZ file?
EDIT: ok so I tried it, but flash tool failed to get model information from the phone.
were you in download mode? I can't get to download mode here.

diego-ch said:
So,
Should I use windows 7 32 bit or is it fine with 64 bit?
Will I need a .TOT file and a DLL for my model ( D855P 16gb ) or can I use a KDZ file?
EDIT: ok so I tried it, but flash tool failed to get model information from the phone.
were you in download mode? I can't get to download mode here.
Click to expand...
Click to collapse
I send my phone to warranty service, where they changed all the motherboard with new IMEI and SN.
Hope that they don't ask for money to repair the phone.

hi all, having this problem as well. anyone resolve this?? Need help!

[/COLOR]
nofait said:
Hi,
You'll need to use a Windows 7 machine and the proper LG USB Driver (first post of this message) and change it to the COM41.
Do a BOARD DL and when the screen comes up and tells you to not touch it, ignore and press OK. Then press the power button and at the same type touch the "Normal +power". It should reboot and everything should be fine
Cheers! .
Click to expand...
Click to collapse
hi thanks for idea but could you explain in detail because is not working on my end. what screen comes up? i get ready in com41 . then download fail! (0 sec)
---------- Post added at 11:29 AM ---------- Previous post was at 11:26 AM ----------
paolotheking said:
I send my phone to warranty service, where they changed all the motherboard with new IMEI and SN.
Hope that they don't ask for money to repair the phone.
Click to expand...
Click to collapse
did you get it back?

prana_Sky said:
did you get it back?
Click to expand...
Click to collapse
Yes, with new mainboard.

prana_Sky said:
hi all, having this problem as well. anyone resolve this?? Need help!
Click to expand...
Click to collapse
I have the same problem did you find any solution ?
edit: solved somehow

Help - Stuck on Download Mode

I rooted and flashed Sphinx. The ROM somehow kept me from hearing the other person on the other line when making calls and they couldn't hear me. So I was trying to unroot by using the Flashroot tool method. And now I'm stuck on download mode.
I have a d855. How do I unroot properly and how do I get out of the download mode.
This is my first time rooting an LG phone :/

Duhhrenn said:
I rooted and flashed Sphinx. The ROM somehow kept me from hearing the other person on the other line when making calls and they couldn't hear me. So I was trying to unroot by using the Flashroot tool method. And now I'm stuck on download mode.
I have a d855. How do I unroot properly and how do I get out of the download mode.
This is my first time rooting an LG phone :/
Click to expand...
Click to collapse
Hold the power button for 10 secs to reboot to normal. <<<<<<<< Depending on what you have done >>>>>>>>>>
ENSURE that no transfers or other process are in progress or you will have a bad day. I don't know what you have done on your phone but ensure you read the thread you are following completely.
Are you trying to restore to stock? There are a few threads that you need to follow exactly or you will brick your device.

Tweakecho said:
Hold the power button for 10 secs to reboot to normal. <<<<<<<< Depending on what you have done >>>>>>>>>>
ENSURE that no transfers or other process are in progress or you will have a bad day. I don't know what you have done on your phone but ensure you read the thread you are following completely.
Are you trying to restore to stock? There are a few threads that you need to follow exactly or you will brick your device.
Click to expand...
Click to collapse
The method failed, so I gave up and wanted to just reboot. Did a batter pull and was able to get to the factory reset screen, but it just loops back to download mode.

Duhhrenn said:
The method failed, so I gave up and wanted to just reboot. Did a batter pull and was able to get to the factory reset screen, but it just loops back to download mode.
Click to expand...
Click to collapse
follow this, for your variant, it should get you back on track don't forget to check the hashes as a bad download would cause it to fail.
http://forum.xda-developers.com/showthread.php?t=2785089

Duhhrenn said:
I rooted and flashed Sphinx. The ROM somehow kept me from hearing the other person on the other line when making calls and they couldn't hear me. So I was trying to unroot by using the Flashroot tool method. And now I'm stuck on download mode.
I have a d855. How do I unroot properly and how do I get out of the download mode.
This is my first time rooting an LG phone :/
Click to expand...
Click to collapse
I don't have the links to the tread where I got these from but lets just hope I don't get banned.
1) go to download mode
2) install this and download the correct .kdz file for your phone
-Modelnumber is ...
-serial number is your imei number
- wait until the download is done
3) run the lgflashtool2014.exe from this zip
-Select type= cdma
-phone mode= Diag
-reset time=33000
-Should be like this when You run it
-select kdz file= is where you need to find the kdz file you just downloaded(step 1)
-then press cse flash
-in the now pop-up window select start
-select your language
-ignore error (cannot connect to lg server)
-check progress on phone up to 100% then boots in recovery installs and restarts
-wait untill it goes to the welcom screen then you can unplug
-now the most inportant step Like my post
to enter download mode do this:
--You must switch off the device to start the process.
--Then press and hold the “Volume Up” and connect the USB cable from phone to PC.
--Use the original USB cable. Because, other device’s cable may not be detected in the Computer. So, only we recommend it to use the original-- one that you got it when you bought the phone.
--Wait for the driver installation on PC.
--Then you will get the download mode screen in your phone.
--That’s it.

I have the opposite problem, can't get into download mode haha
Sent from my LG-D855 using Tapatalk

suljo94 said:
I don't have the links to the tread where I got these from but lets just hope I don't get banned.
Click to expand...
Click to collapse
I can't find the .kdz file. I have the D85010d.
Also, i ran the original lg firmware, I also get an error saying it was unsuccessful or i may have keyed in something incorrect.
When I run perform the TOT method, I get the "device model is different".
So, d85010d was stock and I flashed sphinx d855... where they incompatible? im assuming no because the phone ran fine aside from the issue i stated on the original post.
would like more help.

Duhhrenn said:
I can't find the .kdz file. I have the D85010d.
Also, i ran the original lg firmware, I also get an error saying it was unsuccessful or i may have keyed in something incorrect.
When I run perform the TOT method, I get the "device model is different".
So, d85010d was stock and I flashed sphinx d855... where they incompatible? im assuming no because the phone ran fine aside from the issue i stated on the original post.
would like more help.
Click to expand...
Click to collapse
have you tried looking for it with the first link?
Sent from my LG-D855 using XDA Premium 4 mobile app

suljo94 said:
have you tried looking for it with the first link?
Sent from my LG-D855 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Okay, it installed but i'm stuck on the boot screen. Tried to do a factory reset, but it just loops right back to the boot screen.
But the installation completed. Does this mean I'm back to stock though and root is gone??

Same problem here with my LG G3 (F400L)
I tried everything TOT& DLL files KDZ Files no thing work for me.

I have the same problem im stuck in download mode and i cant find the kdz =O
I need to know if something can resolve this problem , my device is a lg g3 850 10 d and i installed the room sphinx for the lg D855 and was incompatible because the dialer did not work properly and try with original tot for my device and dont work with this method.. so i need the ORIGINAL KDZ for the lg G3 D850 10d know where to find???

Hey men you can find the solution of your issue?
Duhhrenn said:
Okay, it installed but i'm stuck on the boot screen. Tried to do a factory reset, but it just loops right back to the boot screen.
But the installation completed. Does this mean I'm back to stock though and root is gone??
Click to expand...
Click to collapse
i Have exactly the same problem of you... im istalling the sphinx room and try to back to stock in the 855 version and my version is 850 10 d and my phone get in a download mode don run anymore :crying:
You can ressolve finally the problem or what do you do with your phone????

Duhhrenn said:
So I was trying to unroot by using the Flashroot tool method. And now I'm stuck on download mode.
I have a d855. How do I unroot properly and how do I get out of the download mode.
Click to expand...
Click to collapse
I was in your position. Once you enter the download mode it is *almost* impossible to get out without removing the battery. I've heard a lot of suggestions like pressing the power button for 10 or 20 seconds or even doing that in combination with other keys, BUT the ultimate truth is that you have to press and keep holding power button for at least 1 minute. I didn't time exact seconds, but it was ridiculously long time. Probably it will take you less time removing the back and re-sit the battery, but personally I hate removing the back without serious reason
About the second question - I was unable to flash anything in LG's download mode. I'm using Ubuntu + virtualbox (Windows 7 inside), but due to issues with drivers and/or virtualbox and/or usb port forwarding I was unable to reliably connect and flash the stock kdz image. Fortunately I've sent the phone back to the LG repair office and they re-flashed the firmware for me.
---------- Post added at 04:46 PM ---------- Previous post was at 04:41 PM ----------
masmusica said:
so i need the ORIGINAL KDZ for the lg G3 D850 10d know where to find???
Click to expand...
Click to collapse
It is not exactly what you want, BUT at least you can get your latest, official KDZ file from LG.
Open in browser the following URL, but replace the xxxxxxxxx
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=xxxxxxxx
where xxxxxxxx is your IMEI number
As a result you'll get an XML file that will contain the location of your latest KDZ update, which should look something like this:
http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=.../D85510L_00.kdz

how to fix download mode
for all lg phones but if you are not lg user you can contact me for any phone software issues
try freepcforanything.blogspot
1. add .com at the end of the link
2. and choose software solution (right side you can see)
3. fix all software related issues.
---------- Post added at 04:16 PM ---------- Previous post was at 04:09 PM ----------
al-motamel said:
Same problem here with my LG G3 (F400L)
I tried everything TOT& DLL files KDZ Files no thing work for me.
Click to expand...
Click to collapse
you can try reinstall software and it will work for sure and also without loosing you data i can't send direct link cause i m new user
just follow the steps
1. open browser and type freepcforanything.blogspot+.in/2015/08/software-solution.html
2. copy link and past in address bar just remove + and enter

Solution- Lg G3 Stuck in download mode.
USE TOT as describes in given link. But using USB 2.0 , it works for me on korean ver. F400S. Don't use USB 3.0
forum.xda-developers.com/showthread.php?t=2785089

BioVolt said:
I have the opposite problem, can't get into download mode haha
Sent from my LG-D855 using Tapatalk
Click to expand...
Click to collapse
If you can't get in that, then something very serious happened!
you sure you can't enter it?
Otherwise, it would mean you messed up the bootloader!

Did you fix your phone?
al-motamel said:
Same problem here with my LG G3 (F400L)
I tried everything TOT& DLL files KDZ Files no thing work for me.
Click to expand...
Click to collapse
i am also having lg g3 F4ooL
installed cloudy g3
soft bricked
boot looping
when i enter into download mode
flashtool says an error that
*cant change to Download mode*
Download fail
what can i do?

Hi guys, i know it's an old post but i get the same issue.
I was following this tutorial https://linustechtips.com/main/topic/1058206-lg-g3-lineageos-tutorial/
I was on lollipop.
I initially downgraded to kitkat (V10e) using LG UP and then rooted with purple drake.
In the following reboots, "kernel error" occurred.
So I tried to flash the kitkat stock version again but without success.
I'm stuck in download mode and tried to flash both the kitkat version, the lollipop and the marshmallow, through .tot and .kdz, I tried both with LG UP, LG Flash tools v 1.8 and with LG flash Tools 2014 but in all cases unsuccessful because the phone reboots before it ends.
Now I don't know what to try anymore. Do you have any solution, please?
Thanks in advance.

Lg G3 - BRICKED !! Tried everything! Experts help pls

Hi
I have a t-mobile D851 LG G3, for which i was trying to restore to STOCK software, through one of the guides elsewhere on the forum. My first try FAILED, and now the phone is stuck on the "FIRMWARE UPDATE - Do not unplug the USB connection until the process is finished - USER B51" screen
No matter what i do (all key combinations for recovery mode, download mode), plugging, unplugging the phone, taking the battery out for 30 mins or so, and putting it back - NOTHING is working. It all goes back to the screen mentioned above.
I tried running the LG Flash tool again, but it fails.
Any ideas? Any help would be greatly appreciated. This phone is my daily driver, and I am in a major fix without it.
link for the guide I used to flash
http://forum.xda-developers.com/tmob...lg-g3-t2818667
EDITED: LINK HERE
http://forum.xda-developers.com/tmobile-lg-g3/general/firmware-t-mobile-lg-g3-t2818667
EDIT - SOLVED
Thanks to everyone who chipped but especially to pside15 and one other person (but i can't find his post)
The solution was very simple - I was making the idiotic mistake of looking at just the computer screen and NOT the phone screen. The computer kept giving me all sorts of errors saying 'update failed - can't connect to server, yada yada' etc. I just left the phone alone - came back 10 mins later to working phone.
Moral of the story - Watch BOTH the phone screen and the computer while doing these things, because my computer had me believe that this is not gonna work - the phone obviously disagreed

When the flashtool fails, whats the error? Its not hardbricked if it still comes on and goes into download mode. Look at THIS image and see if you set action mode the same. This one mistake caused me a headache last night for 6 hours.

Your link doesn't work.
I use this LG Flashtool when I soft-bricked my G3.
http://forum.xda-developers.com/showthread.php?t=2797190

joeyhdownsouth said:
When the flashtool fails, whats the error? Its not hardbricked if it still comes on and goes into download mode. Look at THIS image and see if you set action mode the same. This one mistake caused me a headache last night for 6 hours.
Click to expand...
Click to collapse
it doesn't come into download mode - its just stuck at the 'firmware update' mode at 0%
And does it matter that its a D851 (the t-mobile) version?

inshadesofgrey said:
it doesn't come into download mode - its just stuck at the 'firmware update' mode at 0%
And does it matter that its a D851 (the t-mobile) version?
Click to expand...
Click to collapse
Firmware update is dl mode. Does your computer recognize phone when its plugged in?
sent from my LG G3

joeyhdownsouth said:
Firmware update is dl mode. Does your computer recognize phone when its plugged in?
sent from my LG G3
Click to expand...
Click to collapse
The computer does recognize it. But when it comes to the point of verifying connection between phone and LG software update tool, it fails saying 'make sure the phone is connected to the computer, etc'

inshadesofgrey said:
The computer does recognize it. But when it comes to the point of verifying connection between phone and LG software update tool, it fails saying 'make sure the phone is connected to the computer, etc'
Click to expand...
Click to collapse
Uninstall drivers from device manager in computer, reinstall. Make sure to change com port to 41. Also board dl in action mode is a complete overhaul of firmware, the other setting in action mode is to update firmware.
sent from my LG G3

If your phone can turn on an go into download mode you can flash it. Just try w different computers
Same thing happened to me

joeyhdownsouth said:
Uninstall drivers from device manager in computer, reinstall. Make sure to change com port to 41. Also board dl in action mode is a complete overhaul of firmware, the other setting in action mode is to update firmware.
sent from my LG G3
Click to expand...
Click to collapse
Can i use this guide? - http://forum.xda-developers.com/showthread.php?t=2772199
If yes, what would be the relevant file for the black T-MOBILE LG G3 (D851)?
the only options i see are:
F400K V10B
Files. DLL F400K
F400L V10A
Files. DLL F400L
F400S V10B
Files. DLL F400S

inshadesofgrey said:
Can i use this guide? - http://forum.xda-developers.com/showthread.php?t=2772199
If yes, what would be the relevant file for the black T-MOBILE LG G3 (D851)?
the only options i see are:
F400K V10B
Files. DLL F400K
F400L V10A
Files. DLL F400L
F400S V10B
Files. DLL F400S
Click to expand...
Click to collapse
Im not 100% sure, because I have the Sprint LS990. As far as the model # goes, it has to be the exact one, which should be under your battery. I'll look into it more in a few hours when I get off work. Try HERE for tots and dlls
sent from my LG G3

FIXED IT!
Thanks to everyone who chipped but especially to pside15
The solution was very simple - I was making the idiotic mistake of looking at just the computer screen and NOT the phone screen. The computer kept giving me all sorts of errors saying 'update failed - can't connect to server, yada yada' etc. I just left the phone alone - came back 10 mins later to working phone.
Moral of the story - Watch BOTH the phone screen and the computer while doing these things, because my computer had me believe that this is not gonna work - the phone obviously disagreed

SOLVED!
SOLVED
Thanks to everyone who chipped but especially to pside15 and one other person, whose post i can't find now
The solution was very simple - I was making the idiotic mistake of looking at just the computer screen and NOT the phone screen. The computer kept giving me all sorts of errors saying 'update failed - can't connect to server, yada yada' etc. I just left the phone alone - came back 10 mins later to working phone.
Moral of the story - Watch BOTH the phone screen and the computer while doing these things, because my computer had me believe that this is not gonna work - the phone obviously disagreed

Bricked Sprint G3
Does this method work for the LS990 and if so where can I find the firmware files for ZV4? PLEASE NEED THE HELP! Thanks

LG G3 D855 - Firmware upgrade
Hi,
I am in the same situation here. I have used the following tutorial and successfully flashed the firmware
I am not allowed to add the link yet.. Sorry
Type the following on YouTube
How to Unroot/Unbrick LG G3!
My Phone was up and running and I forgot to close the LG Flash tool on my PC. The flash tool started to flash my phone again, at about 80%, when the tool restart the phone , it never came back and since then I am sitting at the firmware upgrade screen.
I can see a yellow mark in device manager under Portable device.... I can see under port LG Mobile Serial port which i set it to 41. I read about something called wipe cache partition. I have used few different PC but it is not downloading the firmware at all.......... Please help!!!!!!! Can I use Linux ADB to flash the firmware .... Any tutorial ......

[Q] Weird Bricked please help.

I have really searched and searched whatever i could but could not achieve any thing sorry for opening a new tread but i am really desperate for fixing my G.
So to start i was on Art Mod v7 and i saw that he posted a black theme so i installed it after installing some system stop responding what i guessed that it might be i didn't wipe cache, well i did that and got into soft brick, i am not blaming him for any thing it was all me , so i should have flashed new kdz but i didn't do that i flashed teenybin Files i dont know why i did that but i did resulted in a different kind of brick.
So problem is i have fastboot i have download mode but device some times get detected on download some times it doesn't when it did i tried flashing kdz through lg kdz flasher but resulted in continuous operation break also no driver is detected in fastboot and more over no recovery as it is in secure boot. I am a noob so please do bear my questions.
do kindly help LGOG is in continous bootloop more to add.
some what LGNPST detects phone in download mode the same application given with teenybin.
Kindly do help i know about android i just read silently but this time i am unable to solve it.

What system do you have on the machine that you're trying to flash the KDZ file? Did you install the LG driver?
I had trouble to flash kdz on my device from Windows 8.1 64bit. The flash would freeze after some time and nothing would happen. Try it maybe on another computer but after installing all the needed drivers.
Which software do you use to flash the KDZ file?

thank you for replying
malimukk said:
What system do you have on the machine that you're trying to flash the KDZ file? Did you install the LG driver?
I had trouble to flash kdz on my device from Windows 8.1 64bit. The flash would freeze after some time and nothing would happen. Try it maybe on another computer but after installing all the needed drivers.
Which software do you use to flash the KDZ file?
Click to expand...
Click to collapse
Win 7.1 well i know it freezes and for me it usually unfreezes after the kdz unpacks
well for kdz i used this
http://forum.xda-developers.com/showthread.php?t=2010624
bro please could you link some one to this post who might help ?

Irazor73 said:
Win 7.1 well i know it freezes and for me it usually unfreezes after the kdz unpacks
well for kdz i used this
http://forum.xda-developers.com/showthread.php?t=2010624
bro please could you link some one to this post who might help ?
Click to expand...
Click to collapse
I used the LG Flash Tool 2014 to flash the KDZ file
here is the link: http://www.mediafire.com/download/b2z1etctmettop3/LG_Flash_Tool_2014.rar
Type: 3GQCT
PhoneMode: CS_Emergency
It took me a few tries to get it working, it always stopped at 10% giving some silly error. I dont remember exactly what it was but after few tries it all went okay.
Hope it will help

Thank you bro for agian replying
malimukk said:
I used the LG Flash Tool 2014 to flash the KDZ file
here is the link: http://www.mediafire.com/download/b2z1etctmettop3/LG_Flash_Tool_2014.rar
Type: 3GQCT
PhoneMode: CS_Emergency
It took me a few tries to get it working, it always stopped at 10% giving some silly error. I dont remember exactly what it was but after few tries it all went okay.
Hope it will help
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Click to collapse
But it didnt help either

i am getting this error
malimukk said:
What system do you have on the machine that you're trying to flash the KDZ file? Did you install the LG driver?
I had trouble to flash kdz on my device from Windows 8.1 64bit. The flash would freeze after some time and nothing would happen. Try it maybe on another computer but after installing all the needed drivers.
Which software do you use to flash the KDZ file?
Click to expand...
Click to collapse
seems to be device is recognized in download mode because its asking for drivers like mako drivers
error what i am getting is
please disconnect the cable from the phone in order and remove and connect the battery
power on the cell phone and press the restart button to resume update
if lg support tool is stopped abnormally try with (options)-(upgrade recovery) in tool menu
so shall i do or there is an alternative?

Irazor73 said:
seems to be device is recognized in download mode because its asking for drivers like mako drivers
error what i am getting is
please disconnect the cable from the phone in order and remove and connect the battery
power on the cell phone and press the restart button to resume update
if lg support tool is stopped abnormally try with (options)-(upgrade recovery) in tool menu
so shall i do or there is an alternative?
Click to expand...
Click to collapse
I'm sorry but I really have no more ideas on how to help you. I did not have similar problems, I had a problem when my phone didn't want to boot anywhere except download mode. But the flash went through after a few tries.
Maybe you should try to flash it on a different computer? Install drivers and everything again and try to flash again. There may be a problem with drivers or something

I got it, done it
malimukk said:
I'm sorry but I really have no more ideas on how to help you. I did not have similar problems, I had a problem when my phone didn't want to boot anywhere except download mode. But the flash went through after a few tries.
Maybe you should try to flash it on a different computer? Install drivers and everything again and try to flash again. There may be a problem with drivers or something
Click to expand...
Click to collapse
Well i have retrieved my mobile from qusb_dmode means from hardbrick :victory:
alot of info trust me alot of it

Irazor73 said:
seems to be device is recognized in download mode because its asking for drivers like mako drivers
error what i am getting is
please disconnect the cable from the phone in order and remove and connect the battery
power on the cell phone and press the restart button to resume update
if lg support tool is stopped abnormally try with (options)-(upgrade recovery) in tool menu
so shall i do or there is an alternative?
Click to expand...
Click to collapse
I have the same problem, at around 10% of flashing i get the same error:
"please disconnect the cable from the phone in order and remove and connect the battery
power on the cell phone and press the restart button to resume update
if lg support tool is stopped abnormally try with (options)-(upgrade recovery) in tool menu "
What did you end up doing? I've been trying for weeks to unbrick my phone i even took it to 3 cellphone repair guys in my town and no one knows how to unbrick it.
Please get back to me! Im stuck.

Bricked lg g3 need help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

so i wanted to flash fulmics rom on my brand new lg g3 (p.s my old one wouldnt charge) but when i flashed my d852 bell firmware on it via LGUP my went back from getting a drink and my lg g3 was stuck on an android with a thing in its chest spinning and its just stuck there i tried all programs even with a bell marshmallow kdz and it says (lg flash tool and LGUP tot method) communication fail with device and on lg flash tool 2014 kdz method it just fails and i did confirm that nothing was wrong with my hardware and software and is there an alternative my goal is to flash twrp with download mode, wipe the system and flash a rom but how? i also dont want to take it back or take it to a shop i want to do this all on my own and i need your guys help. god bless you if you help me fix this. thanks
-moreogthanu p.s its a very old name

does anything show up in device manager when you plug it in?

yes its hows up lgeandroid net usb something... the normal stuff

moreogthanu said:
yes its hows up lgeandroid net usb something... the normal stuff
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i meant LGE mobile usb serial port (com7) and in portable devices its says LGE android MTP device and its has a yellow trangle

so does anything show up when you turn it on? how far does it get in booting? it goes to DL mode everytime? and that's what is in device manager in DL mode?

paujmos said:
so does anything show up when you turn it on? how far does it get in booting? it goes to DL mode everytime? and that's what is in device manager in DL mode?
Click to expand...
Click to collapse
it boots into dl mode but i cant flash firmware yesterday i recorded it. it boots to lg logo and after 29 seconds it boot to the android guy i did find something in yellow text but it flickers and that says. in short
E: failed to mount /cache (no such file or directory) then can't mount /cache/recovery/log
can't open /cache/recovery/log
and it repeats that text 3 times from what i saw

did you install twrp? i would check your drivers or the cable for the communication failure in dl mode

paujmos said:
did you install twrp? i would check your drivers or the cable for the communication failure in dl mode
Click to expand...
Click to collapse
My goal is to try and install TWRP my phone fully stock I checked everything even my charging port. I'm using the lg cable... My main goals are to get this fixed before March 3 and all I need is an alternative. Get TWRP or return back to stock

at least give me a script to boot to stock android recovery without adb. cause obviously i cant use adb and i hope anybody reading this can remember that with lg flash tool 2014 kdz method it goes to 4 and stops unless you guys find fix to that. all i need is to get this thing fixed before march 3rd. so if you guys help me find any kind of fix this is all i need
here is info but my phone
model: lg-d852 (don't really need it though)
status: stock unrooted device and has never booted into the system
android version: 4.4.2 kitkat
main problem that needs to be fixed: it cant mount cache cause apparently there is no file or directory according to my phone
that's it. if you guys need anymore info about my phone let me know (except imei or serial number cause that's all private stuff) thanks
-moreogthanu it's a very old name

use the tot method. never seen it not work assuming youre in download mode and have working drivers/cable

paujmos said:
use the tot method. never seen it not work assuming youre in download mode and have working drivers/cable
Click to expand...
Click to collapse
I used every method

then you must force it into the 9008 mode using the following guide. I would check the dll you are using, drivers, or cable first through. I would be EXTREMELY SUPRISED of a g3 in DL mode that is non-responsive.
https://forum.xda-developers.com/verizon-lg-g3/general/how-to-hardbrick-guide-using-test-t3276928

paujmos said:
use the tot method. never seen it not work assuming youre in download mode and have working drivers/cable
Click to expand...
Click to collapse
girlfriend took my phone somewhere to fix it if she comes back with no results i'll update you

moreogthanu said:
girlfriend took my phone somewhere to fix it if she comes back with no results i'll update you
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Click to collapse
i'm surprised that my lg g3 in download mode with the correct dll, tot, kdz. every single program with a fully working charging port and an lg cable is that unresponsive. although at one point the arrows in download mode started spinning an then it stopped and on the monitor it said on lg flash tool (tot method). CAUTION: Primary gpt has invalid value there must be something blocking the connection
oh and my phone is still getting fixed soooooooooo no updates just yet. but like i said if there are no results i'll update you