yashsingh1/xdaforums huggingface dataset:
[G2 General] tursoke:
Yeah, in my case though I had managed to get TWRP in before the mess, just was using a wrong button combination while trying to enter it. It's the only thing that saved me.
[G2 General] honest1212:
Lucky!!!

In my case, I am not able to see the device also in the device manager, only this is coming in the device manager,

http://prntscr.com/3i881t
[G2 General] tursoke:
You sure you have the correct USB drivers for your phone? Mine didn't register AT ALL on Windows nor Linux. Thankfully TWRP supports ADB.
[G2 General] honest1212:
Drivers are installed as couple of days before only I have flashed ZVC tot file on the same laptop.
[G2 General] lukano:
Try connecting the phone while powered up (at what I assume is the black screen it goes to after the secure boot error) to a linux or I likely OSX machine.

Run a 'ls /dev/sd*' and look for the drive letter that has the most numbers, and then 'gdisk -l /dev/sd{letter}' for a list of partitions and their names. Look for a partition named 'fota'. If found, run 'dd if=/dev/zero of=/dev/sd{letter#]' to zero out that parition. Don't worry if it says you ran out of allocatable space or whatever. Power cycle phone, and hopefully it's working.

I too had a D803 stuck in secure boot > black screen, no dowload mode, restore mode didn't do anything. I had rooted, but no TWRP or CWM, so ended up at that black screen. I had accepted a FOTA update to the stock lg os, which caused it.
[G2 General] B@RRY78:
Same problem here
[G2 General] Butch1326:
Please let me know if you get a fix. I'm in the same situation.
[G2 General] shutter1980:
Do I have hope?

I am in the same situation .Does the picture below give me any hope?
[G2 General] B@RRY78:
Problem solved

Bender 007 is the master best
[G2 General] warlock94:
Use adb sideload

Just check out a tutorial on adb sideload on YouTube

It's pretty simple

Sent from my LG-D802
[G2 General] bender_007:
Try adb pusher from my sig
[G2 General] mel0un:
Hi guys, have same problem with download mode (stuck on same screen). Any ideas how to fix download mode please?
[G2 General] bender_007:
Please be more specific. What variant. What did you do to kill the download mode? Can you boot to android? Can you enter recovery? Stock or custom recovery?
[G2 General] mel0un:
I have D802 32GB variant, rooted, TWRP 2.7 on.

I can boot into android but i need to flash stock firmware... But without download mode no chance... :rolleyes:
[G2 General] bender_007:
Step 1. Install d802 autorec. Press flash. Step 2. There is no step 2.
[G2 General] mel0un:
Thank you very much! I will try it today! :)

EDIT: Tested, download mode fixed! Thank you very much! :)

And could i ask you any purpose/function of LG G2 partitions from like sbl1(download mode is part of this partition?), aboot, rpm, tz?

I'd like to better understand the images/partitions of LG G2... I am programmer but i dont know nothing about G2 partitions unfortunately :(
[G2 General] buenarc:
Thank you for the information., very helpful!
[G2 General] mankindtw:
I write a cygwin tool to recover G2 partition automatically for F320K.

It can be used to other G2 brand by replacing "mmcblk0pXX_YYYYYY" (File must follow this naming rule).

Download:

F320K Recover Partition_2014051301
[G2 General] martijncassels:
No access whatsoever

Hey,

I have read a lot of posts about unbricking a LG G2 and haven't come across a situation in which i am atm.

After the well known LG logo bootloop i tried to recover all partitions using the linux way (via ls /dev/sd*, dd=... etc).

Something went wrong and now i have a really bad bootloop with only access to factory reset (which does nothing) and hardware key control.

PC doesnt get a signal from phone.

Phone looks like it's rebooting but after a few seconds of LG logo, it shutsdown and tries to reboot again (endlessly)

Think i have a shot at unbricking now? :)

I guess ill return the phone to the shop...
[G2 General] Mix48:
LG G2 Bricked

Hey XDA

I have read a lot of posts about unbricking a LG G2 D802 but can't finde a guide which work for my situation.

I updatet my phone with a software update from LG an then it just started on this bad bootloop with only access to factory reset (which does nothing) and i can't access download mode ether.

When the LG logo show up it just said "cause: boot certification verify" then it just tune of again (endlessly).

I had tried this guide but when i type "ls /dev/sd*" it just reply "/dev/sda /dev/sda1 /dev/sda2 /dev/sda3 /dev/sda5 /dev/sda6", so what to do from here, any ideas?
[G2 General] bender_007:
Hm. Seemsl like wrong kernel ? You don't have a custom recovery?

Does it say fastboot... ?
[G2 General] Mix48:
Lg g2 d802

Hi

Thanks for your interest in helping me, but i'm sorry that i'm a little noob to this, so i will do my best.

Fist of all i tried to run Cyanogenmod 10,2 instead of LG software, but i only manage to root it. Then the other day there was a software update from LG which i installed, and then it started bootlooping.

It just look almost like this (picture)

I cant access download mode, and when i try to do a hard factory reset it just started bootlooping again. I have no backup of my phone, but there was not anything important, but no it doesn't say fastboot.

Hope you can help
[G2 General] bender_007:
Try "fastboot devices" (or adb devices) in command prompt.

What does it say ?

- you should download adb/fastboot, please use search, I would do it but tired today :/
[G2 General] buenarc:
Great info, let me try to apply this and will get back to this thread.
[G2 General] pazuzu91:
...

Same here m8 ... Cant find solution, none of service here cant fix it ... Not even with JTAG :S
[G2 General] mj2k:
G2 destroyed

Hey guys,

I also have some very serious issues with my G2. Its bricked since ive used Flashify wanting to flash TWRP recovery. Im stuck at the "secure boot error: boot verification certify" error screen.

When i push the power button the LG logo pops up and then the error screen appears for a few seconds and then the phone turns off again. also cant get access to the download mode. I can get into the hardreset mode but of course it hase no use since i tried to install a custom recovery.

So i wanted to fix the problem with this ubuntu tutorial but how can i get my phone connected back to my computer when it simply turns off everytime? I thnik it might be the same problem than described the posts before.

What will happen if i send it to LG ? (it was rooted)

Hope you can help me.
[G2 General] Mix48:
Lg g2 d802

When i run the command "adb devices" in cmd, it reply the list of attached devices. And there is no attached devices, and when i try "fastboot devices" there is no one either :/

Any other ideas?
[G2 General] bryantx24:
Please Help!!!

My LG G2, does not pop up in device manager at all. Please Help!
[G2 General] athhar96:
Can anyone help me please ??

athhar@ubuntu:~$ sudo -i

[sudo] password for athhar:

root@ubuntu:~# ls /dev/sd*

/dev/sda /dev/sda1 /dev/sda2 /dev/sda5

root@ubuntu:~# /dev/sda5

-bash: /dev/sda5: Permission denied

root@ubuntu:~#

I am using Vm vare on windows 7
[G2 General] julirroko06:
hi

work this method on lg flex ls 995
[G2 General] gelito81:
FIXED

Use this app. I had the boot error before recovery and black screen on the LD980.

http://www.droidviews.com/install-twrp-recovery-on-lg-g2-running-android-4-4-2-kitkat/
[G2 General] simonemar:
lg g2 d802 still bricked

Hi guy, i explain my conditions:

-Download mode available but the pc does not recognize the phone

-When it's not into download mode it is still into lg logo image

What can i do?

I tried from Ubuntu but into the terminal show the device only as "sda" and "sda1".

Help me if you have a solution..

Thanks in advance
[G2 General] bender_007:
Download mode or the blue circles? Blue circles mean the dload mode is dead.
[G2 General] zmaash:
No usb

Hello!

I'd like to start by saying thank you to everyone involved with making and maintaining the questions asked in this post. You are lifesavers for many.

I, like many, am having an issue, however. I have read through most of this post in search of a way to deal, but to no avail. Here goes:

I have the D803 model, no recovery, no download. I can access factory reset, but it doesn't affect anything. In terminal, the command 'ls /dev/sd*' returns '/dev/sda /dev/sda1 /dev/sda2 /dev/sda3 /dev/sda4 /dev/sda5' . The command 'lsusb' returns only two devices, neither of which are my phone. I have tried to get my computer to recognize my phone as being plugged in via usb with OSX, Windows, and Ubuntu (the latter two run through VirtualBoxVM) but it just is not showing up anywhere. I've tried every button combination I can think of, as well as plugging in my usb cable at varying times. When plugged in, the screen flashes on and off (black) and will not restart or do anything.

*UPDATE* I got into download mode, still no usb recognition and I can't do anything from download mode, but it's more than i could do this morning

If anyone has any input as to what I can do to get my computer to recognize that my phone is plugged in, I would appreciate it very very much!

UPDATE: I've found a few things to try, will update with results

UPDATE: I managed to get into TWRP, tried to flash 2 different roms both through sideload and adb push and I got the same error messages. I found out that was due to using an out of date version of TWRP (even though it was the most up to date for my device) so instead i flashed CWM. That (at least I thought) really hooped the phone. I had LG boot logo and broken download mode only, no usb recognition, no recovery, not even an error message or a black screen. After fiddling with button combinations and plugging my phone into and out of the computer, it finally booted into CWM! YAY! I then used sideload to flash SlimKat and GAPPS through CWM and now it's working like a dream after 5 days.
[G2 General] buenarc:
Thanks for the information here.
[G2 General] tungkick:
I CAN UNBRICK SUPPER BRICK LG G2 , LG G2 HAND LOGO LG. NO DOWNLOADMOD, NO QHSUSB_BULK, USE CABLE P999 NOT OK:d.

https://www.facebook.com/photo.php?...0098160.147205.100000205031864&type=1&theater

i unbrick lg g2 f320l flash file tot d802 , phone no download mod, no qhusbs_bulk, no driver, capble p999 not ok >> and done:D
[G2 General] pazuzu91:
hi

Can you pls explane? I am from serbia .. I was in all service for Jtag and with no succes. Nobody knows how to fix it ..
[G2 General] kennethtse:
thank you so much , but have any software to fix this ??? because i don't have good program skill ....
[G2 General] simonemar:
Image showed

The screenshot is the one attached..if you have any idea how to fix it..

Thanks in advance
[G2 General] somboons:
Ohhh.last month I have same problem,I must go to LG service center to change m/b.?
[G2 General] bender_007:
Connect your phone to the pc while in factory reset(doesn't matter if it fails).

Download fastboot/adb - type "fastboot devices" , see if it's listed.
[G2 General] simonemar:
meaning of m/b

Sorry what's the meaning of m/b????
[G2 General] somboons:
m/b=mainboard
[G2 General] simonemar:
how much?

How much did you spend for change the m/b?

Thanks for your time
[G2 General] somboons:
free .In warranty.my G2 can not boot too.I told a service man that problem when update sw :laugh:
[G2 General] simonemar:
So you think that if i send the telephone to the LG assitance and i tell them that the telephone broke after the last LG update they will believe me?

Please answer as soon as possible because tomorrow morning i'll send the telephone to the assistance and i have to write something about the problem (but the truth is that the problem was due to my own when i tried to install a MOD on the phone, so i'm a little bit afraid of what i'm going to write!!:( ).
[G2 General] ibizamagic:
thank you
[G2 General] cmaag:
I have blue circles on download mode but I am able to boot the phone and access adb. Is it possible to reflash download mode or am I boned on returning to stock. I have to return to stock the touch screen has stopped working in the typical band that they fail in.

I can also access recovery but i need download mode to return to complete stock right?

thank you in advance
[G2 General] Akash Tumu:
Same Problem, I am struck on the "blue circles"

I am also struck on the "blue circles" . Everything shown in the post to recover the phone worked, I am able to boot into t a custom ROM, now I need to restore the phone to factory settings and I need download mode for that. Hope someone helps and Although the above posts say that I need to change the m/b for that, I am sure that the developers have another way around.
[G2 General] l0zts0ul:
No boot, no download, no lights ... nothing!

Hi,

I have (or used to have) a d802T 32G open australian version. And I am a noob (:eek:)

My phone has 4.2.2 version, and it was working very good since last december (when I receive it). I rooted a few months ago, and everything was doing well. But, when I receive the upgrade message from LG, and I tried to do the OTA, no deal.

I decided to upgrade myself, using a lot of information on the internet.

The steps:

- Rooted (ioroot method)

- TWRP custom recovery install - no sucess .. Secure boot error - no big deal, using the phone normally.

- TWRP install with ADB ... YEY ! Worked.

- Backed up old firmware (! good ?)

- Flashed d802_KK_Fix (or something like that).

- Reeboted

The phone started OK, but with Vodaphone firmware (didn't know), and with screens bug in touch. It was almost impossible to unlock the phone, enable debugging and accept RSA from PC.

I tried to flash a stock KDZ, but it freezed ad 49%, even with modem disable. tried a lot of times ... no success..

Then I tried this topic. Took note the partitions, booted from linux mint, flashed the indicated partitions with dd ... and ...

Voilá.. a big and expensive paper holder.

No LG logo, no download mode, no factory reset screen, no flashing lights ... nothing. Well, when i plug the USB to pc, it recognizes as "QHSUSB_BULK" ... but no software can read it.

Any ideas? Please, if I take to service, I will have problems, because the phone is from AU and I live in Brazil. A friend already have problems with international cell phones before ..

Sorry by the capital letters, but.. HELP !!
[G2 General] bender_007:
This should help you.

Of course you need the d802

t

partitions
[G2 General] Cinesate:
I have a problem with my d802..

yesterday in ther morning I rooted my brand-new phone (I bought it a week ago); after using Flashify app for installing the TWPR recovery the phone "died"

yesterday in the night I used the guide in the frist page of this thread and now the phone works in this way:

# LG logo if I try to power on

# Vol + + usb cable ->download mode with 5 blue circle

# Vol - + power -> with screnn with text and after the modded recovery.

with my windows pc can't see the phone, so i can't flash the original firmware with offline procedure

with my linux pc (I used it for working with this guide), I sent with "adb push" a Cyanogenmod ROM to the internal memory but the phone can't install it.

can you help me?!?
[G2 General] fishman0919:
Hi,

I'm stuck in a bootloop with "Security Error"

I have a Tmobile d801... was trying to flash a d802 4.2.2 rom with TWRP 2.6.3.2.

Install flashed fine... after install I have the Tmobile stock kernel save as a restore... so I restored the stock kernel and rebooted system.

Got bootloop... booted back into recovery. TWRP 2632 can take a very long time to wipe and restore so I flashed philz_touch_6.27.5-d801.

I guess that fail because when I boot into recovery I get a prompt in the top left...

[9110] Fastboot mode started
[9160] udc_start()

In Ubuntu I get

fishman@fishman-desktop:~$ ls /dev/sd*
/dev/sda /dev/sda3 /dev/sdc /dev/sdd1 /dev/sdf
/dev/sda1 /dev/sdb /dev/sdc1 /dev/sdd2 /dev/sdg
/dev/sda2 /dev/sdb1 /dev/sdd /dev/sde /dev/sdh
fishman@fishman-desktop:~$

Any help would be greatly appreciated
[G2 General] asko19:
I Think this will help IT HELPED ME

Hey Guys i too have tried and tried it all and every method.. THEN stumbled across this and it worked like a charm..

Google: cloudy fas autorec.apk (it should be the first link or so .. Called (Cloudyfa's files for LG G2)

On the right hand side under popular i downloaded the D802AutoRec.apk.. put it on my phone.. install and run it.. It did the Whole LOKI Thing that NO ONE!!! seemed to manage to explain in detail.. I HOPE IT WORKS FOR YOU after i did that i was able to get into TWRP..

PS.. make sure you guys have the right one for your device as mine was D802 INTERN.

PPS.. I DONT HOLD ANY RESPONSIBILITIES if things go wrong.. (But they shouldnt) :laugh::p
[G2 General] aironham:
when doing the code "gdisk -l /dev/sdb" I am getting an error telling me that the specified file isn't found. I am assuming I am just bricked for good. unless theres something I can do with an otg cable. But I don't think my phone is reading that. I can get into recovery. But my adb sideloader doesn't allow anything to happen. I've tried everything. No computer recognizes it either.
[G2 General] bender_007:
Can you enter download mode? You should rather use fastboot and flash laf.img to get it working if it's not available.
[G2 General] fishman0919:
flash laf.img?

Yes... I can get into download mode but R&D tools fails at 45% with "T-Mobile USA D80110C_00.kdz"

I try the TOT method but when I use the d801.dll it fails because it thinks the phone is a d802 because of the d802 rom I flashed.

I try TOT with d802.dll just to see if I could get something on the phone... but it fails on the modem check. kinda stuck in the middle of no mans land.
[G2 General] PZenith:
IMG files for 32GB

Where can I find the img files for d802 10A 32 GB?
[G2 General] l0zts0ul:
Does anybody could put the d802T partitions on the internet?

Thanks!
[G2 General] rolrctermaniac:
I think I completely screwed up my phone and right now it seems to be irreversible.

I, being the idiot that I am, assumed that the files provided would work for my vs980 because there was not a seperate folder for it (oh was I wrong). I proceeded to follow the instructions to the letter and everything worked okay. Until I got to twrp. the touchscreen calibration is very, very, very out of wack. Also, the device does not show up in adb devices when plugged in to usb. so here is where I stand:

1. no download mode

2. attempting to boot the device results in TWRP

3. adb not available

4. anything in twrp that requires a swipe or typing in twrp is impossible (not hard, impossible)

is there any chance of survival?

If the op reads this. I beg you to add something similar to "if not on LG G2 D802 10a HIT THE 'BACK' BUTTON TO FIND THE CORRECT DEVICE" near the download link

Thanks in advance.
[G2 General] pete022682:
please help im really trying to fix my vs980 i have no recovery mode no download mode, i foolishly tried to flash a tmobile stock rom on verizon g2 to get lte problem is the verizon kernel wouldnt flash right so now im stuck in fast boot cant factory reset nothing i tried this but i dont think i have partitons i have ubuntu running through virtual machine when i type ls /dev/sd* in terminal i get only /dev/sda /devsda1 /dev/sda2 /dev/sda5

it also said MBR only BSD APM GPT not present

someone please help
[G2 General] lep2011:
I can not

lg g2 D805:crying:

my problem

Secure booting error

Error: Verify Certification Boot!

gdisk-l / dev / sdb

* this part does not have the result that should have

someone .. can arrange for me ... using TeamViewer program

thank you very much
[G2 General] BesTCooL:
phone download mode ok but pc no any action no find driver etc how solve this problem ?
[G2 General] pete022682:
holy mother f'in s#it...I LOVE YOU SOOOOOOOOOOOOOOOOOOOOOOOO MUCH

i'm definately that one person you do deserve a beer and i'm buyin'!!!!!!!!!111:good:
[G2 General] collller:
Can this procedure be done in command line in windows?

i mean

fastboot erase laf

fastboot flash laf.img

etc with all the files.

Will it work?

EDIT: IT WORKED !!! no need to use Linux. just use fastboot and flash file after file.

fastboot flash [partition] [path to the file]

i.e. fastboot flash tz c:\tz.img

BUT now i have crazy screen. touch is unusable. any ideas please?
[G2 General] dftimoteo:
yep it does.

Just make sure you're using administration level cmd.
[G2 General] pazuzu91:
.

https://www.youtube.com/watch?v=hwuyVaTU0Js this is mine problem :S
[G2 General] bender_007:
Well. Crazy in what way ? can you enter the download mode now ?

---------- Post added at 12:40 AM ---------- Previous post was at 12:39 AM ----------

What did you do to make it like that ?

Can you enter recovery mode (if it's a custom rom, obiously it is) --- power off, hold volume down + power until you see the lg logo, then release for a moment and hold either volume down + volume up OR volume down + power again

Can you enter download mode ?

--- power off --- hold volume up and connect to pc..

.
[G2 General] pazuzu91:
,

I can enter in pre stock rec mode. In promt screen with yes or no option to chose, and he reboot is same condition like this. if i try to enter download mode, same thing. I pushed with dd missmatched laf.img and recovery.img. Now i cant do anything with him. I took it into the service for JTAG, and with no succes. Those guys dont know how to fix it :S
[G2 General] cadavar:
Yet another frustrated user

Hey guys, I have the same issue as many others here. This fix is not helping me, maybe someone can shed some light on why?

AT&T (D800) 32GB model, trying the "10o_partitions" (hopefully this is the right one for my model)

I can't get into recovery or download mode. When doing either it goes straight to "security error" then blank screen while the phone is still on.

I am able to use the dd commands but it appears they are going too fast? The phone is constantly rebooting as well, so is there another way to verify that the images are actually being written to the device?

I have tried every possible method but nothing seems to be responding.