[Q] Lg G2 Brick Security Error Bootloop No recovery, No download, PC don't recognize - G2 Q&A, Help & Troubleshooting

Hello everyone !
I have big troubles with my Lg g2 d802.
Yesterday i want to intall crdroid 5.0 on my Lg g2 on Official 4.4.2, so i've:
Root my phone
Install CWM Manager
Set CWM Recovery
Reboot in recovery
Use ADB Mode
Use ADB on my PC to send crDroid zip by sideload
During sideload, after full download, there was an error assert failed. So installation failed, and i've decided to reboot my phone.
Problem is here, my phone boot, display LG Logo and after 5 seconds, Lg Logo with "security error" message, then stop alone and reboot again, and again.
I have tried following procedures :
Power off completely my phone and then Volume down+PWR to enter in recovery : FAIL
Volume Up and then put USB cable to enter download mode : FAIL
Connect with USB on Ubuntu to try to reset .img files : FAIL (Phone invisible on my pc, even not recognize)
So i cannot go to Recovery Mode, Download Mode and my phone isn't recognize on PC.
I don't have any other ideas and i am here to asking help .
Thxs for reading, and i pray for a miracle !

Wallouf said:
Hello everyone !
I have big troubles with my Lg g2 d802.
Yesterday i want to intall crdroid 5.0 on my Lg g2 on Official 4.4.2, so i've:
Root my phone
Install CWM Manager
Set CWM Recovery
Reboot in recovery
Use ADB Mode
Use ADB on my PC to send crDroid zip by sideload
During sideload, after full download, there was an error assert failed. So installation failed, and i've decided to reboot my phone.
Problem is here, my phone boot, display LG Logo and after 5 seconds, Lg Logo with "security error" message, then stop alone and reboot again, and again.
I have tried following procedures :
Power off completely my phone and then Volume down+PWR to enter in recovery : FAIL
Volume Up and then put USB cable to enter download mode : FAIL
Connect with USB on Ubuntu to try to reset .img files : FAIL (Phone invisible on my pc, even not recognize)
So i cannot go to Recovery Mode, Download Mode and my phone isn't recognize on PC.
I don't have any other ideas and i am here to asking help .
Thxs for reading, and i pray for a miracle !
Click to expand...
Click to collapse
Even I have suffered with same problem
Follow this thread I think you must have seen this thread it is the best solution till date from recovering the problem you are in right now.
http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
But you have to mess up with your phone motherboard but its really very easy. Just follow it. I have recovered mine from this.

Ok i'll Try it ! Thx you !

I have tried your link and its working. My phone is alive ! Thx you .
I have a last problem. My phone has 2 black lines on the screen from top to bottom. This appear after i had flash new .img files. Does anyone have an idea about what i need to do to remove these ?
Thx you again

Related

[Q] Soft-brick? ADB sees the phone.

Hello guys, I have a problem with this phone.
First I flashed the euro+fastboot kdz... The phone booted and worked awesome but It wasn't showing recovery or LG logo.
Somewhere on this forum I read that you had to flash v10c and then v20B to fix this.
I did so, v10c failed, but v20B flashed correctly, but it didn't boot up.
I'm still stuck here, the phone is completely dark, but when I connect it to the pc I can see it with ADB, It just doesn't go into fastboot mode (because of v20B I guess). But flashing the euro kdz won't work anymore, and I'm stuck in ADB without fastboot.
Hope you guys can help me,
Juxter.
Juxter said:
Hello guys, I have a problem with this phone.
First I flashed the euro+fastboot kdz... The phone booted and worked awesome but It wasn't showing recovery or LG logo.
Somewhere on this forum I read that you had to flash v10c and then v20B to fix this.
I did so, v10c failed, but v20B flashed correctly, but it didn't boot up.
I'm still stuck here, the phone is completely dark, but when I connect it to the pc I can see it with ADB, It just doesn't go into fastboot mode (because of v20B I guess). But flashing the euro kdz won't work anymore, and I'm stuck in ADB without fastboot.
Hope you guys can help me,
Juxter.
Click to expand...
Click to collapse
Try again.
First refer to this thread:
dont see recovery and boot logo - http://forum.xda-developers.com/showthread.php?t=825173
And the original post by: Feuerbard
#22 - http://forum.xda-developers.com/showpost.php?p=9457010&postcount=22
Thumbs up solution to get logo
solution from 4PDA
flash first french firmware _hxxp://csmg.lgmobile.com:9002/swdata/WEBSW/GT540/ANEUBK/V20a_00/V20A_00.kdz
(you must make kdz flasher fullscreen and change right option to CS_EMERGENCY)
dont boot android , remove accu reinsert them and press vol - and plug usb cable into port on mainboard - you must get in download mode )
flash firmware with fastboot (i use CIS _hxxp://narod.ru/disk/26675062000/V20B_00.kdz.html)
boot android and flash this firmware _hxxp://narod.ru/disk/25473801000/out.kdz.html
after this you must see all logo ( LG , Motion LG , Android )
after this flash firmware you like (custom fastboot e t с)
maybe some point is not needed but this tutorial work 100% and tested by myself
Click to expand...
Click to collapse
And the post by namco:
in post -- #45 - http://forum.xda-developers.com/showpost.php?p=10241289&postcount=45
namco said:
So after 4 5 6 or maybe 10 times, it will finally become working, that's what you're saying?
This is really odd, something's wrong with these phones lol
Okay, i'll load myself with a ton of patience and repeat the steps as per the instructions. This is *exactly* how i am doing it, with all the details:
1) Using the French v20A ROM - http://csmg.lgmobile.com:9002/swdata/WEBSW/GT540/ANEUBK/V20a_00/V20A_00.kdz and this Russian one - http://narod.ru/disk/25473801000/out.kdz.html
2) Take out the battery, SIM card and SD card
3) While holding the Vol - button, plug USB into phone so that the phone goes into Download Mode
4) Run the KDZ Updater, put it into CS_Emergency mode
5) Select the French V20A rom and flash it
6) When it's finished (immediately after the DOWNLOAD MODE letters vanish), i pull out the USB plug from the PC, so that the phone doesn't boot.
7) Again hold Vol - and reinsert USB to put the phone back in Download Mode
8) In KDZ Updater (still in CS_Emergency mode) select out.kdz and flash it
9) Let the phone boot into Android
At this point i STILL don't have a boot animation, should i keep doing this until i see one appear?
When it (if) finally appears, i just flash my own ROM, do a factory reset and it should stay that way, correct?
I guess my impossibility to access recovery mode also has something to do with this...
Click to expand...
Click to collapse
Note: For above step: 1) Using the French v20A ROM
-- as long as you have the ROM of v20 with fastboot option, it doesn't really matter.
================
For out.kdz file alternate download link by fisher:
#59 - http://forum.xda-developers.com/showpost.php?p=10426771&postcount=59
Originally Posted by fishears
Try this:
http://www.mediafire.com/?u2mhgrbva8dr5cm
================
Hope this helps.
Thanks for the reply, I actually fixed it following this:
hxxp://modaco.com/topic/329863-how-to-raise-gt540-from-the-dead/
Once I got fastboot with that cwm.kdz I reflashed a fastboot rom, and from that one I could use the KDZ updater again, following the French kdz procedure...
The phone now is fully working recovery and bootanimations again

Help lg g2 d802

right fokes heres what my problem is
I have a hp envy x2 windows 8 pc does not allow usb boot.
I rooted my lg g2 and installed twrp and installed custom rom, it rebooted after install of zip and booted to black screen with fastboot command.
I have used adb&fastboot and takes commands
it has firmware update access by plug usb and vol+
am able also to get to factory reboot .
when I use lg R&D TESTOOL IT HANGS AT 49% AND THIS IS AT THE END OF THE LIST 21:21:56 : Indirect Internal / PC to Phone send end.
I AM VERY NEW TO THIS AND DONT KNOW WHAT TO DO , PLEASE HELP ME
Lord Kelly said:
right fokes heres what my problem is
I have a hp envy x2 windows 8 pc does not allow usb boot.
I rooted my lg g2 and installed twrp and installed custom rom, it rebooted after install of zip and booted to black screen with fastboot command.
I have used adb&fastboot and takes commands
it has firmware update access by plug usb and vol+
am able also to get to factory reboot .
when I use lg R&D TESTOOL IT HANGS AT 49% AND THIS IS AT THE END OF THE LIST 21:21:56 : Indirect Internal / PC to Phone send end.
I AM VERY NEW TO THIS AND DONT KNOW WHAT TO DO , PLEASE HELP ME
Click to expand...
Click to collapse
In TWRP is the zip signature verification checked? That happened to me and all I did was uncheck it

ls980 lg G2 , Stock recovery , broken download mode, no rom

I have a new and unique problem with my set Ls980 (LG G2). I dig down all xda and other forums from last week. But no use till now. So i need some good help from experts . Ok here is the situation . I have Lg g2 ls980 (sprint) i rooted it to flash some LP custom rom in it. i installed RECURRECTION REMIX LOLLIPOP ROM in it successfully along with it's gapps. After reboot i got my phone in boot loop. now the current situation is that
1- I have nothing on my phone everything wiped out. no rom backup or anything else on my phone memory.
2- I have stock recovery (pictures attached).
3- I have broken download mode. ( so i can't attach my phone to lg flash tool) picture attached.
4- I am stuck on boot loop with cm11 M5 ( last rom installed using adb sideload option from stock rom)
5- No fastboot mode.
Please guide me to recover my soft bricked phone.
Did you try Tot method? What happens when you plug your phone to pc? Does adb recognize your device?
ceza1380 said:
Did you try Tot method? What happens when you plug your phone to pc? Does adb recognize your device?
Click to expand...
Click to collapse
How can i try tot method without going to download mode ? as i said phone only have stock recovery , Yes there is an option in stock recovery "Apply update from ADB" by selecting that i can run adb sideload commands. And i can flash any zip rom from that option . I tried several rom's using this option but installation aborted in middle .
Does device manager in Windows recognize your device? In Tot method you do port settings to flash kdz. Also you can give it a try for LG pc suite.

LG G2 Bootloop Bricked - No recovery or Download mode

Hi guys, I might need some help or a walk through here, I might have bricked my phone. I stump-rooted my phone ( 4.4.2) and installed TWRP Recovery 2.8.1 initially , Installing SuperSU which patched my sdcard and rebooted causing my phone to get stuck in a boot loop giving me no access to download mode, just recovery. From there I tried to install Cynogen mod 12 in TWRP recovery to fix the bootloop but any attempt at flashing gave me an error "error executing updater binary in zip." So I extracted the folders and flashed the 2.7.0 recovery.img which sayed it worked but now my phone is still stuck in boot loop, no download mode and when I try to enter recovery I get stuck in fastboot mode with port change errors. I took some screenshots so it would be easier to help me out. Every time I plug in the USB I get the following errors, the screenshot is from continuous attempts
I have the mini sdk installed and Koush drivers. Device manager does not recognize my phone anymore but it does come up under Fastboot Interface
Any Help would be greatly Appreciated
Because I'm a new member I can't post screenshots so just add an h infront of the links.
Thanks in advance for all your help
ttp://i.imgur.com/mHcOYOL.jpg
ttp://i.imgur.com/WxZNNzi.png
Take a fresh KDZ for your model and flash it via LG FlashTool
wisefreakz said:
Take a fresh KDZ for your model and flash it via LG FlashTool
Click to expand...
Click to collapse
Can you please explain how to do that WITHOUT entering download mode?
Maybe LG Flash recognizes your phone and will do the job.
LG Flash does not recognize my phone at all. http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404 Do you think this method will work?

[HELP] Soft bricked smartphone

Hi everyone,
For some stupid reason a reset the file system i now I'm stuck in the LG logo.
1. I can enter in download mode - in Device manager the PC recognized as LGE AndroidNet USB Serial Port (41)
2. I can enter in recovery mode (Cyanogenmod recovery, which is very based) - in Device manager the PC recognized as Android ADB Interface
So far, so good. BUT. I'tried to flash the phone with LG FlashTool 2014 and i'm stuck at 2%. Ok, i was tried the fix with FixedDownloadcmode.bat, but when nothing is uploading on the phone (which by ADB is recognized as sideload when i'm in recovery mode and apply the ADB connection). I tried to push by ADB but nothing is uploading - error: protocol.......
LGUP recognized my phone as unknown, so this method is not working now.
Via ADB i can't send even TWRP recovery, which is so much flexible than cyanogenmod recovery.
I will be thankful for any help from your side.
Thank you in advance!
https://forum.xda-developers.com/lg-g2/general/alternative-fix-lg-flashtool-stuck-2-t3605753
Same happened to me. Try this if you can reach your storage
https://forum.xda-developers.com/showthread.php?t=2663369
https://www.youtube.com/watch?v=Lg693AYgoTo
ATT 4.4.2 KitKat:
https://mega.nz/#!n0RTUYZD!MVntiPxuyW...
ATT 4.2.2 JellyBean:
https://mega.nz/#!e5RERS4L!FjZyopcvwM...
T-Mobile 4.2.2 JellyBean:
https://mega.nz/#!qsRSBDwD!KKCETp41O1...
Modified DLL file if nothing else works:
https://mega.nz/#!f5xTGKrC!ifBCOAnK4j...
I had a very similar problem with it getting stuck at the logo after pushing supersu to the phone. I followed Supersport every single step of the way in his video. I think his links are the only valid ones online now, so just download them and reflash your phone. If your G2 is anything like mine, drivers will never appear to be installed correctly and it never restarts, only shuts down.
His method is:
1) Download and install LG drivers on PC
2) Download and install the flash tool and patch it
3) Download and load the .tot and .dll files into the flash tool
4) Enter download mode on G2 by holding volume up while connecting USB
5) Switch G2 Com port to 41 in device manager
6) Once Flash tool shows that all ports are ready, power down G2 and disconnect
7) Hold volume up and reconnect to get back into download mode
8) LG Flash tool starts flashing
9) Complete
Note: If your G2 was screwed up as bad as mine, it'll say failed but all the main system files will load to the device before it restarts and it'll even shut itself off while doing it's installation on first reboot. Mine somehow was still revived from this state with his method.
I forgot to add this but couldn't edit my post for some reason.
For D800:
Master archive of 5 files needed to do this:
https://www.androidfilehost.com/?fid=95747613655047114

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