yashsingh1/xdaforums huggingface dataset:
[G3 General] Lanikor:
And here's the solution, the exact situation as mine, damn device test:

"Just a word about the service menu and device test. When running device test from "Device Test"->"MT" in service menu as it restarts, it will cause you a "secure booting error" and the device won't boot. I was trying to calibrate the proximity sensor but I can't as it can't boot into the device test.

I fixed the booting error by making backup of all partitions in twrp and copying the internal storage in to sdcard. After backing up things, I installed lollipop .kdz with lg flash tool, rooted it, installed twrp and restored the backups and I was in the starting point. So the device test doesn't work. "

So which one of those files on your server are Lolipop kdz?
[G3 General] hyelton:
[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ &amp;amp; TOT Method With LGUP

20x are lollipop

30x are MM
[G3 General] Lanikor:
I flashed Kit Kat KDZ ROM from your site (Europe Common 16G D85510A_00.kdz) by following your guide (LG FT 2014, CSE FLASH etc) from the first post and managed to get out of this nightmare and now it works fine.

A note for other users reading this: THIS SOLUTION MIGHT NOT WORK ON YOUR PHONE AND I DID THIS AT MY OWN RISK (but i don't see why it shouldn't if you have a proper ROM), my phone was D855 16 GB International version, so i can't guarantee for the outcome if you try this.

Hyelton thanks for the help, you and this thread were very helpful.
[G3 General] ad astra:
Hey there @OP! First off, thanks for all the guides you provided in this thread. I read the past few posts where you showed Lanikor how to fix his problem. Just one quick question: Is it impossible to flash a MM kdz (via LG UP) from a custom rom (in my case CM 12.1 with android 5.1.1)? I have a D855AR 16GB which is essentially a D855 international.

If true (impossible to flash from custom to stock MM via lg up), are this steps correct?

1) Find a stock android based rom, flash it via twrp

2) Flash a stock KDZ 5.0

3) Then upgrade via KDZ to 6.0 (can I omit step 2 and flash a 6.0 KDZ directly?)

Thanks a lot mate!
[G3 General] hyelton:
It just depends some can some won't flash correctly while on CM. just find a stock based rom like above flash it via twrp then flash 6.0 kdz :).
[G3 General] Lanikor:
I took the longer way just in case, so i don't mess something up, let the phone do updates via OTA and i managed to upgrade to 5.0. that way, after that you have to use LG Update app, and it took me to MM 30C version.

So my way takes you from 4.4.2. to 5.0 via OTA (lots of little updates between those two, very time consuming) and from 5.0. (after more little updates via OTA) to 6.0. via LG Update app.

[IMG="MM 30C SS"]http://s32.postimg.org/p3u8b5pj9/Screenshot_2016_05_08_19_01_40.png[/IMG]
[G3 General] hyelton:
If you do that be sure you perform a factory reset for a clean slate after all the updates it can cause problems
[G3 General] Lanikor:
Yeah, i did that as soon as i updated to MM, i must say that i'm surprised how well it works compared to CloudyG3 ROM, it's a lot faster and more fluent.
[G3 General] Aciz:
Anyone?
[G3 General] hyelton:
[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ &amp;amp; TOT Method With LGUP

Sorry no clue on rooting I keep up with several LG devices for stock stuff. This thread is for going back to stock or stock in general for anything about rooting best to check general and Q&A section.

Not sure if MM is even rootable or not

As for going back to stock 30x firmwares are MM. As long as you stock to your model number youll be fine.
[G3 General] PhoneNoobs:
I was stuck for hours on Fulmics 6.0 til a few hours ago i figured it out. Check the build prop dont edit anytjing i used root explorer hard pressed on it n clicked use viewer to look at it. I seen that fulmics put my phone as sometjing like MKT8475 or something of that nature so i immediately made a back up on twrp then grabbed my other G3's buildprop that was stock ls990 and i replaced the build prop on the fulmics with the stock using root explorer. It automatically creates a backup of the original. Then i changed permissions back to rw-r--r-- 644 on root explorer and since i knew it would cause a boot loop i didnt reboot i simply just turned it off like normal. Immediately after that i plugged it up to the computer and bam worked like a charm. I used lg flashtool, with ls990 ZVA tot and lgflashv160dll it wasnt working at all because it wasnt recognizing the phone or not allowing me because the phone had a weird name once it seen the build prop it letbit flash. Hope that helps u make a back up then find a stock build prop of w.e carrier u got and do what i did. But im warning you make sure u dont reboot or power on that phone with the build prop u just put in, after adding the buildprop, change permissions to 644 rw r r then just power off normally and then continue to flash, it should flash now. and if it dont work then u can restore the back up u made before changing that build prop.
[G3 General] Aciz:
I see. So since I'm in NEU, I would choose "Nothern Europe D85520F.kdz" which would take me back to stock LP, after which I could use OTA updates again and update to MM (since I don't see NEU MM files there)?
[G3 General] Jatiska:
I tried to go stock with LGUP, but now I'm stuck in TWRP. Can I flash the MM kdz with LG Flash Tool or does it have to be lollipop?

Edit: I was on 30B and variant is D855

Edit2: Never mind. It's working now after I flashed the MM kdz with Flash Tool :)
[G3 General] MaRcOliNoSS:
i had the same problem as u yesterday and after hours of freaking out i came to this solution,flashed lolipop kdz via flash tools and mm kdz via lg up now my phone is working fine.btw do u mind giving me your battery status cause i think that mine drains a bit fast
[G3 General] dsillydude:
ANYONE PLEASE HELP ME IM GETTING THIS ERROR (FAIL TO DOWNLOAD) PLEASE VERY URGENT.. I TRIED EVERYTHING ON MY LG G3 BUT NO SUCCESS. Im using a tot way:crying:

i forgot to say this,

when i boot my phone into dwnld mode it goes okay but the problem is when i start to flash it wont finish, for some reasons it goes until 10% then phone just switch off itself so the process fails, see the pic i attached
[G3 General] hyelton:
Your using usb 2.0 right? Also if your running MM you must use LGUP
[G3 General] dsillydude:
Yes usb 2.0 plus i was on 10e kitkat i was surfing and the phone started to randomly stuck and and reboots itself for couple of days but just now it went off and wont fully boot, just that
[G3 General] Lanikor:
Try to reinstall drivers and VC redist and try again
[G3 General] hyelton:
That sounds a lot like a hardware issue.
[G3 General] PhoneNoobs:
I had to do that with my g3 because nobody uploaded zvb or zvc sobi go with zva and manually upgrade to zvc. So yes it should work u might get a bunch of little updates and not just 1 big update but they will come. I heard somewhere that its best to leave NFC on for this and be connected to wifi of course. Itll take a while but itll work.
[G3 General] eleandroo42:
Hello there,

I am new to the forum. I just got a lg g3 d851 a week ago. I have flashed the stock 6.0 30d from lgup. But I lost my last backup of the kitkat and I can't find a way to gi back to it.

I tried .tot and .kdz with flashtool but it fails.

What should I do.

Thank you.
[G3 General] hyelton:
That's because once you install MM you must use LGUP which is stated in my guide to downgrade. But be careful not sure if the D851 can or not yet haven't seen anyone post. I do know the G4 cannot be downgraded past a certain firmware now for the D851.
[G3 General] MaRcOliNoSS:
Shall i do a factory reset after i upgrade lp to mm?
[G3 General] Lanikor:
Yes, to prevent weird behaviour and bugs, battery drain etc.
[G3 General] sleboard:
Hello everyone, I have LG G3 AT&T version, my phone has been unlocked work no trouble with all sim card, now I have one question.!

If I restore phone From Official stock rom AT&T (D850)

Whether it will make my phone is locked again??﻿

:)
[G3 General] hyelton:
No flashing back to stock cannot relock the phone. Just remember you won't be able to update past Kitkat without an active AT&T sim though due to ota updates only work on AT&T
[G3 General] 2ez4tt:
flas tool says no mobile connected

HI I erased everything (cache,system,dataand other ptions in recovery mode ..idk why :| ) Now i am trying to install stock ROM back using your kdz method.. everything works fine but after 36% flash tool says something like this ..no device connected plz recnnect and retry.. and even in device manager there is ' ! ' on lg g3 driver .. i dont know what to do .. kindly guide me
[G3 General] hyelton:
Your using a usb 2.0 port and cable that came with the phone correct? Usb 3.0 won't work. Your also putting the phone into download mode correct?
[G3 General] 2ez4tt:
yes, i am using 2.0 and in download mode but not the original wire but i think if yjre is a problem with the wire then it must not show the download screen on mobile (right?) and i hear connecting sound too :/
[G3 General] hyelton:
No download mode works even without a usb cable. If your using a cable that never came with any type of mobile phone it might cause problems.
[G3 General] 2ez4tt:
i tried with 2 cables .. one is universal cable and other is some original huawei cable :/ . so you are sure its because of cable then .. or should i try tot method too? maybe it will give the same error? howebber lg up also says no device connected :|
[G3 General] 2ez4tt:
well, i noticed even after error prompt the progress bar continues upto 60% and then stuck :|
[G3 General] hyelton:
Are you sure it's not saying server connection error? That's normal.
[G3 General] 2ez4tt:
apperently your lg driver was the problem

i got what the error was .. apparently the lg driver you mention does not work . but i got this https://www.androidfilehost.com/?fid=24052804347802528 to download lg driver from here http://xdaforums.com/showthread.php?t=2797190

and now it works like a charm ! so it wasnt flash tool's problem but lg driver :good:

Thankyou anyways your kdz method works ! :cowboy: :good:

---------- Post added at 08:32 AM ---------- Previous post was at 08:27 AM ----------

nope it wasnt server connection but lg driver wasn't detected .. i get to know it when I click normal flash and it stucks after 15% saying something like connecting to PC .. so i figure out that its lg driver causing the problem :good:

Edit : Or maybe its just that i copied the kdz file into the flash tool folder
[G3 General] PhoneNoobs:
I would try downloading different drivers on your computer. What version do u have installed? I believe 4.0.4 are the newest, a lot of old threads have the 3.x.x versions so i would advice u get the new drivers installed and i dont know what carrier you are using but if its Verizon u have to download different drivers. For some reason on a lot of other threads they have verizon drivers seperate for download.. Dont know what else to tell ya
[G3 General] hyelton:
It most likely worked if you copied the kdz file into the flash tool folder. The drivers in the OP work perfectly fine. Also never normal flash. Always do a cse flash.
[G3 General] endlessahmed:
Does this rom work ls990 ?
[G3 General] hyelton:
What rom? These are stock firmwares. And yes this method works for the LS990 to go back to stock.
[G3 General] yochananmarqos:
[MENTION=2607037]hyelton[/MENTION]: FYI, I was successfully able to restore the Kit Kat D85010d TOT via LGFlashTool 1.8.6.527 with LGUP8974.dll coming from Marshmallow D85030k. It failed the model check using the LGD850_20140613_LGFLASHv160.dll. I did not try LGUP.
[G3 General] chrisiamae11:
Hi I'm using LG G3 F460K, just want to ask if the KTF F460K20C_00.kdz file in the Directory listing is Kitkat or Lollipop? Thanks!
[G3 General] hyelton:
10x is kitkat

20x is lollipop

And 30x is MM.
[G3 General] chrisiamae11:
Do you have the KitKat Rom? Because I'm downgrading from MM to KitKat.
[G3 General] hyelton:
Sorry I do not the files for that model are not as popular.
[G3 General] iamcray:
Thanks for mentioning this because stock AT&T MMs battery life sucks so much. I can't even keep waiting for root on MM any longer.
[G3 General] yochananmarqos:
I successfully rooted on Marshmallow with KingRoot 3.9.2 (grab it from the XDA thread) then used SuperSU Me Pro to replace it with SuperSU.
[G3 General] chrisiamae11:
Hi i tried to downgrade from MM to kitkat, LG G3 F460K, but it says "an error occured please try again" please help! Thanks
[G3 General] hyelton:
What error? And your using LGUP correct?
[G3 General] chrisiamae11:
I'm using the KDZ method

---------- Post added at 03:13 AM ---------- Previous post was at 03:11 AM ----------

This happens when it opens the LG Mobile Support Tool, then it says "UPGRADE STOPPED DUE TO AN ERROR".
[G3 General] hyelton:
You have to use LGUP if you were running MM
[G3 General] chrisiamae11:
Ok I will try! Thanks!

---------- Post added at 03:30 AM ---------- Previous post was at 03:25 AM ----------

I have read that LGUP only works for D855 model, mine is F460K, will this work for me, as you suggest?

And also i am downgrading from MM to KitKat, in the instruction it only says Downgrade from MM to LP...
[G3 General] hyelton:
LGUP is for all models. But may not work for models in which a dll was not installed for that's the downside of it as its a little difficult if it does not easily work.

LGUP can flash Jelly bean and up.
[G3 General] chrisiamae11:
When i tick the BIN in the FILE PATH, it only shows TOT there is no option to select KDZ file. So KDZ file dont show up

to select.
[G3 General] hyelton:
Choose view all files.
[G3 General] chrisiamae11:
Sorry but there is no option for VIEW ALL FILES, only (full packages(*.tot), no other selections.
[G3 General] hyelton:
Choose upgrade select the kdz and then click referbish
[G3 General] chrisiamae11:
Ok I've made it. Thanks!

---------- Post added at 04:13 AM ---------- Previous post was at 04:07 AM ----------

Thank you so much, downgrading was successful!
[G3 General] hyelton:
Your welcome :) glad it worked for you.
[G3 General] chrisiamae11:
yeah, coz my phone heats up fast and drains battery quickly, in MM.
[G3 General] hyelton:
I only owned the G3 back when it first came out didn't own it long. But anything after kitkat on the G2 stock wise is awful
[G3 General] chrisiamae11:
what are you using now? its my first time to use an LG brand.....used to own Samsung..
[G3 General] hyelton:
Currently main Device is an iPhone 6S. Yes I know... Lol. But I sort of wanted my main to stop causing software issues I was having with several different devices.

But I do carry a LG G2 and a LG F3 which I use the F3 mainly as a Dash cam and the G2 for my android needs. My G2 houses a famous number :D 867-5309 so it collects tons of calls and texts everyday.

Along with various other devices laying around.
[G3 General] chrisiamae11:
Whoa! Nice! :good:

Is heating normal with the LG G3?
[G3 General] djmarco83:
Not work. Pict up.
[G3 General] hyelton:
The method does work.
[G3 General] djmarco83:
It does not work.

Image attachment.

is somewhere in the file *.tot V10L EUROPE ver 32GB?
[G3 General] hyelton:
No, That screen is showing me that your NOT in download mode.
[G3 General] djmarco83:
Because, as I run the G3 is immediately enters my downloadmode.

How do I connect the charger also happens to be the same.
[G3 General] hyelton:
Remove the battery. Put it back in, boot into download mode plug in USB, also make sure your com port in device manager is set to com41
[G3 General] djmarco83:
I am doing everything according to the instructions. I set COM41. The device is detected as shown in the photo above, but there is an error

---------- Post added at 05:47 PM ---------- Previous post was at 05:46 PM ----------

I did format for TWRP and therefore I can not start the phone
[G3 General] hyelton:
Anymore errors? Cause in your screenshot its saying its connected but not in download mode. You sure its in download mode?
[G3 General] djmarco83:
Yes. Starts me immediately so
[G3 General] hyelton:
Okay. Hmm tried another PC?
[G3 General] djmarco83:
Repeat. The phone is detected but does not want to upload the ROM. Port set to COM41

Last ROM was uploaded V10L

Later, by mistake I did format system by TWRP already will not start.

All the time runs downloadmode. LG Mobile Tool detects but do not know why I do not want to upload.
[G3 General] hyelton:
I asked if your tried another PC as some configs do cause issues, like Windows 8 causes issues that Windows 7 does not and so on. Why not try the kdz method?
[G3 General] djmarco83:
kdz method does not work. This leads to 6% and returns to 1%

I tried on another computer and the same thing.
[G3 General] veronesi.n:
try following this ... maybe you've missed a trick ... sometimes videos are better than text....

http://youtu.be/1WgXuxDbmbc
[G3 General] igylan:
Had to update my d855 vi to vl. I had to unroot and this worked perfectly.

Thank you so much!
[G3 General] veronesi.n:
Ok finally tried it...

I was on 10g and wanted to go to stock to 10L to try roms etc

I had to set administrators rights and compatibility mode to windows 7 bacause I've got windows 8.1 .

Downloaded KDZ file from Lg's web site (the one wich you can see what's your latest firmware with your imei)

I had an error message from flash tool but when I looked the phone the progress bar was filling itself like it was working.

Phone wiped even in normal mode so don't forget to backup any data...

Hope this can help someone.
[G3 General] RoTTeM:
mcafee app

please anybody... can rar or public his mcafee apk from his phone with this i can fix my kioll switch error...
[G3 General] aazmath:
Hi,

Does Software version changes to eur-xx when i update it into stock ? Because now i got branded G3.
[G3 General] puttitat:
My LG G3 won't boot. Rooted, but stock firmware. Have run as rooted for two months, so it's not due to a new root. :)

Followed a guide on Youtube how to enter download mode - it takes 5 seconds in the video, but I held the volume up button for one minute before the little "Download mode" icon showed, and I'm at four minutes now, just stuck at "fastboot: processing commands" terminal display...

Any suggestions as to what I can do now?
[G3 General] rastascan:
Try the LGMobile support tool to recover?
[G3 General] qwikcilvr:
Hi, I have a lg g3 with stock firmware 21a...I want to use lg up to upgrade to marshmallow...is it okay to use 30b kdz
[G3 General] deathbytalkshow:
I followed the instructions to the letter. I have the D851 and the KDZ method doesn't work at all, I get the "connection to the server failed" and I move that window aside only to find the window under it says "Upgrade stopped due to an error", while the phone sits there, nothing's moving in the text box below the Firmware Update screen to indicate that anything is being done.

Then I try the TOT method, red colored bar: "CONNECTION FAIL" and the text box says something about "model check fail". I download all the right files, all that corresponds to the T-Mobile variant (D851)

I made sure to use all the files in the instructions, no "official" LG tools used, the right drivers are installed, I made sure COM port was assigned to 41, I'm using the USB it came with, I used every USB port on my PC, I don't know what else to do.
[G3 General] hyelton:
The kdz method works perfectly fine, but are you running MM on your phone? If so you must be using LGUP the normal tools won't work.
[G3 General] dsillydude:
i did still didn't work, thanks for the reply anyway..

---------- Post added at 07:45 AM ---------- Previous post was at 07:38 AM ----------

i dont think so, i did nothing to it.. its just switched of itself and when io turn it on it starts by writting the lg logo then screen goes black, i dont want to give up because i can still go to download mode but when i start to flash it goes up to 10% then phone switchs itself off so it fails.. help me please must be something blocking
[G3 General] Lanikor:
Try with other stock ROMs for your model, newer/older flashing tool, try changing the USB cable, try with another battery and/or charger, try flashing on another PC to avoid that as well etc.

20000 possible sources of fail are everywhere in the process, with which USB cable (original or else) and what are the specs of the PC (OS) on which you're trying to flash your phone?
[G3 General] ThePurpleK:
I'm trying to restore my phone from CM13 Marshmallow. I've somewhat bricked it by installing encrypting my phone, bieng unable to decrypt it using TWRP, flashing Cyanogen Recovery over TWRP and now CM Recovery can't mount data/internal storage. I've tried to use LG UP and it worked up to the reboot point. After it rebooted, it loaded CM Recovery and overall there was no change. How can I overwrite the recovery and encrypted partitions so that everything reverts back to stock? I'm quite stuck here.

Edit: I decided to treat things as a hard brick and followed this instead: http://open-freax.fr/guide-unbrick-your-lg-g3/
[G3 General] Ray1000:
My phone is fully bricked after using AutoRec to install TWRP when i had it already installed.

I tried the KDZ method and it does not work(d855p), after i press start in the Flash Tool LG Mobile Support Tool loads until around 14% and tells me to disconnect the phone and power it on but its bricked "Problem with communication between cell phone and PC"!! Then i have a "retry" option and no option to close Support Tool.

I used "Normal" mode, i CANNOT lose any data!

Any help?

Thanks
[G3 General] bender_007:
Is download mode alive?

Poslano sa mog SM-G930F koristeći Tapatalk
[G3 General] hyelton:
If your phone is "fully bricked" it's dead you cannot bring it back to life. If the phone is not in download mode flash tool supposed to fail.

If your phone does not turn on at all it's completely dead :(.
[G3 General] Ray1000:
How do i know if download mode is alive?
[G3 General] hyelton:
Try and place your phone into download mode while holding vol up or down while plugging in usb connected to a usb 2.0 port. But if your phone doesn't show any signs of life like LG logo when trying to power it on, it's dead
[G3 General] Ray1000:
It is really dead, no power, no lights, vibration or any sign of life but according to this link i am in download mode because i can see it in Device Manager. I used "DIAG" as in your tutorial but in the link the man is using "EMERGENCY"

http://xdaforums.com/lg-g3/general/lg-g3-auto-rec-hard-brick-fix-t3376638

When i connect the phone to Support Tool downloaded from LG site it manages to connect to my phone and tells me that i already have the lastest version installed. Looks like a sign of life?

:rolleyes:
[G3 General] bender_007:
Hold volume up and connect to pc.

If it loads firmware upgrade then fine. Check for errors while connected to pc.

If errors about drives pop out, asking to be formatted then it's also ok.

Poslano sa mog SM-G930F koristeći Tapatalk

---------- Post added at 22:26 ---------- Previous post was at 22:18 ----------

Lg flash tool might flash it then via tot mode but don't ask about data. You could use either lg flash tool 2014 or lgup (normal mode and upgrade mode--not cse mode and not refurbish mode)

Poslano sa mog SM-G930F koristeći Tapatalk
[G3 General] Ray1000:
Nothing happens to the phone when i do that. When i connect the cable the only change is that i can see the phone in Window's Device manager, under modems. Also LG Support tool manages to connect to my phone, says a new version is available but then says the lastest version is already installed.

Maybe i should try EMERGENCY and CS_EMERGENCY instead of DIAG? Can the phonemode EMERGENCY and CS_EMERGENCY make me lose data?
[G3 General] hyelton:
If you don't see firmware update on the screen it's NOT in download mode. Even if the phone is dead the computer may sometimes detect it but you can't do anything with it.

Hate to say it but data probably won't be recoverable in anyway. As in the state it's in if you could get it in download mode you'll need to use a tot or cse flash.