yashsingh1/xdaforums huggingface dataset:
[G3 General] Saerayne:
Thank you for this guide. Was able to restore my phone after soft-bricking using TOT method. Greatly appreciated.
[G3 General] huzefaonline:
[MENTION=2607037]hyelton[/MENTION] bro, have you checked this thread by autoprime http://xdaforums.com/att-lg-g3/development/rom-lg-d850-20f-lollipop-5-0-1-extras-t3052041 for flashing Lollipop 5.0.1 ? need your advise
[G3 General] hyelton:
Thats not stock/back to stock. There is still no TOT yet sadly. But its a step forward to custom roms though hopefully.
[G3 General] huzefaonline:
ok. but it states stock lollipop rom for our d850. we can flash with twrp along with the modem to get lollipop on our phone.
[G3 General] hyelton:
Yeah you can and it is a way to get lollipop for people who can't OTA but flashing using twrp is not stock. Only stock way is by flashtool
[G3 General] huzefaonline:
Now i got the point. thanks bro :)
[G3 General] rammy1991:
pls someone reply for this question, sorry for bad english
[G3 General] almmpt:
downgrade

you have to downgrade to kitkat with lg flash tools 2014 fallowing this post > root > flash custom recovery > upgrade to rooted custom lollypop firmware using custom recovery and it´s all done.
[G3 General] Prerevision:
hey, on storage cow there is lollipop folder and just wonder which one to use for european 16gb model?
[G3 General] muazzamm:
How to know my lg g3 stock out of box version?

A nooooooooob here........ I got my lg g3 d855 from my brother from Germany. The phone is unlocked and with no branding on case or box but at startup and shut down it shows Vodafone logo only. My current software version is 5.0 (plz see screen shots attached). When i go to kdzlg.com to get kdz for Kitkat it shows the available kdz vh20. Does it mean that my lg g3 software is lollipop out of box? I want to downgrade to kitkt, please help me to select the kdz for my phone. Sorry for my poor knowledge and english
[G3 General] hyelton:
On the G3 internal storage size doesn't matter. The letter is the version
[G3 General] hyelton:
That site only gives you the latest firmware it doesn't matter When the phone was made. If you are want KitKat just use a file from the links in the OP
[G3 General] scientificharmony:
I need a working download link for kitkat TOT (16GB)

anyone?
[G3 General] hyelton:
All links in the OP work..
[G3 General] Prerevision:
ye i kbow that letters are versions but on kitkats kdz there was specified 16 or 32g so i wonder whats oj lollipop, cuz of its not my g3 on which im going to flash well im bit feard :D
[G3 General] hyelton:
The 16gb vs 32gb doesn't matter on the G3 so you can flash either or
[G3 General] huzefaonline:
Why do you want to downgrade to kitkat?
[G3 General] natewren:
The OTA Update doesn't seem to be working for my D850. I believe it's because I'm on Cricket and I'm using a cricket sim instead oaf the ATT sim. Would I just follow the TOT steps using the lollipop TOT file (D850_20F_Lollipop_Stock.zip) with LG Flash Tool to upgrade? I'm currently on unrooted kitkat.
[G3 General] hyelton:
No, there's no lollipop tot file yet. Only KitKat tot. That file is a flashable zip for twrp
[G3 General] anoopmr:
i am having lollipop and inorder to downgrade i did what was told, but after rebooting my os is again lollipop..what to do ?

thankx in advance :rolleyes:
[G3 General] hyelton:
Model? Tot ? Kdz? Where did you get the file? Did you make sure you used a KitKat file?
[G3 General] maccbrs:
LG G3 Korean F400L to int'l version

can i use this method to convert my korean version to int'l version? thanks :)
[G3 General] metalgearhathaway:
Intrigued to know what people think is the best kitkat firmware.

My device is on V10L, but there are M & N revisions as well.

I have tried the lastest N version, it introduced some fixes such as battery screen not having the silly graph shudder and then adding new changes like 9 pane recents panel rather than 4. But, the N version is a little laggier than the L version.

I have the M rom now as well, but before I bother giving it a try, has anyone else tried M, in particular anyone who used to use L revision?

Cheers!
[G3 General] zlays:
Can I flash European TOT file for 32GB version of D855 that is from Taiwan I think suffix is TWN and it's D855 model too...

Will I be able to get OTA updates and everything just like in this TWN firmware?

Thanks!
[G3 General] muazzamm:
Only due to battery... Battery drain is very quick, about 4 hours on screen time with wifi :(
[G3 General] James H:
Hi,

Followed your instructions for the KDZ method to the letter but for some reason I have no notification bar or on screen buttons. I used the correct version (entered my IMEI).

I opted to perform a CSE flash as I was coming from a custom ROM.

Separate thread with more info: http://xdaforums.com/lg-g3/general/returned-to-stock-notification-bar-t3057219

Any help would be super! :)
[G3 General] joshuadjohnson22:
I am on lollipop from an OTA update from the AT&T variant. Can I restore back to kitkat and then use old methods to get TWRP and flash a lollipop ROM? I want to make sure I can before I do it. I have all the files downloaded.
[G3 General] huzefaonline:
isn't that good? i am getting at max 3 or 3.25 hours on 4.4.2 from my g3 d850
[G3 General] rammy1991:
done bro, thanks for replying, now i am on chupa chups 4.2 lollipop rom with bumped twrp and root :)
[G3 General] imach08:
lg g3 twn

My LG G3 D855 16g 5.0 lollipop v20h twn Taiwan version. What firmware should i use to downgrade to kitkat? Can I use the 32g taiwan version, or 16g europe version?
[G3 General] lgg3e:
no sim after downgrading

Hi,

i just followed the kdz method to downgrade from lollipop to kitkat. the problem i'm facing is that no sim is working in my phone now. wifi is working fine. mobile networks in the settings menu is greyed out. how do i resolve this?

thanks in advance
[G3 General] hyelton:
Model number? Did you remove and replace sim? Did you perform a factory reset a couple of times?
[G3 General] lgg3e:
Its D855 32GB. I did change the sim but no luck. Tried to flash 4 times but the same problem.havent tried factory reset. Will that help?
[G3 General] lgg3e:
Even the factory reset didn't help. Tried it 3 times. What could be the problem?
[G3 General] -Frankz:
First of all I want to thank you for making this thread & for providing support to everyone here!

So I think I bricked my phone yesterday, i tried recovering through TWRP, each time it says it succeeded the recovery but when rebooting I get put into Fastboot each time and there was no way getting out of it.

Eventually I ended up here. I am currently doing the TOT method with the LG F400K firmware for my phone but it's going VERY slow.

It has been sitting here for like 25minutes and it's progressing very slowly it's currently at 3%(on my phones screen) and 12% on the Flash tool. It's not stuck cus it just went up 1% while writing this post :P

Any reason why it's so slow & any idea what I should do to make it faster?

Thanks in advance!

Edit: It just stopped "Download Failed" at 2653secs.(attachment #2)

"We can't communicate with Phone"

Edit #2: After the download failed, when I try to boot up the phone it says "Secure booting error; CAUSE: Boot certification verify" and then the blue & red LED starts flashing.

I think my phone is dead lol, unless you have any other advice on what I could possibly do.
[G3 General] Radovan_Djokic:
Zvh
[G3 General] Radovan_Djokic:
Sorry, an error
[G3 General] TheKaser:
what did you put under "select type" ? default CDMA? I have a F460S too and want to flash v20C kdz
[G3 General] hyelton:
Keep it as default.
[G3 General] TheKaser:
thanks a lot! will report results :D

edit. It worked flawlessly. Thanks!
[G3 General] Den2006:
Success revert AT&T D850

Ah, good man. I absolutely hated the Lollipop update. Followed your guide and reverted back to KitKat. Between the battery life, bad memory management and overall sluggish response from my 2 month old G3, this was the worst Android rollout ever. I really, REALLY hate Android 5, in general on my G3 and Shield tablet. But thank you, a beer is on it's way to you. Thank you so much for a successful downgrade.
[G3 General] hyelton:
Thank you! I'm glad it worked for you.
[G3 General] mirotuh:
Firmware Slovak Telecom Branded

I have been strugglin all weekend to find a branded Slovak T-com Lolipop KDZ or TOT, everything that I have found is the european generic stock ROM which is full of bloatware. I know that I can root the phone and then uninstall everything via Titanium Backup, but I would prefer having the original ROM in case of having to send my phone to warranty repair.

Is there anyone from Slovakia having T-com Lolipop or even KitKat firmware file?

I appreciate it
[G3 General] hyelton:
If that's what came with your phone In the OP there's a link to lgkdz.com where you enter your imei and it will give you the exact kdz for your phone.
[G3 General] mirotuh:
this link I havent tried out yet, but I tried out a few others and always got a ROM full of bloatware. Thank you for this hint, I will try it out

EDIT: this link just redirects to the repository that I already know, among KDZ files is the slovak one missing so I guess it automatically downloads the european generic stock instead

EDIT 2: it just came across my mind that it would be logical to factory reset the phone after flashing the KDZ and voila- all bloat is gone
[G3 General] onetik:
Whats the best KK rom for speed and performance?
[G3 General] hyelton:
What do you mean? These are stock firmwares not Rom's
[G3 General] hyelton:
So it does give a link? Are you sure its not giving the correct one? Because if it didn't have an exact it won't give a download at all, it won't substitute.
[G3 General] onetik:
Sorry, I meant stock firmware.
[G3 General] hyelton:
The only difference is region apps, modems, etc.
[G3 General] metalgearhathaway:
I ran through the available KK official builds to discover that myself, you will want V10L, the few revisions that came out afterwards did not improve upon it, instead they introduce lag. Rest assured the V10L KK official is definitely the best revision :)
[G3 General] onetik:
^ Thanks buddy... Will try it out
[G3 General] GTiceman:
I tried to download the KDZ from LGKDZ.com but the download link doesn't seem to do anything.
[G3 General] hyelton:
Then that would mean there's either not one on LG servers for your phone or the link is dead. That's why I host a ton on my server. Check the links in the OP and just download what you need from my server.
[G3 General] GTiceman:
I think the link is dead as it presents me with a link to download but clicking it does nothing.

I did look at the other link and I saw a bunch of files not a single KDZ, this is for a Lollipop for a ATT D850. Her OTA, rooted, 5.0 is unstable so I wanted to reflash.
[G3 General] hyelton:
Wait do you have a D850? You can't use lgkdz for that model. That's only for kdz. The D850 is tot method only. And there is still no lollipop yet. You'll have to flash the current older version and then OTA.
[G3 General] GTiceman:
I was going to ask if it was TOT only, I assumed by the mannerism of the KDZ post that D850 could follow that method now. Okay, I might just wait unless the gf wants me to flash back then OTA up. Thanks
[G3 General] hyelton:
There's 2 methods in the op. Top is kdz and the bottom part there's the tot method.
[G3 General] mirotuh:
It seems like the correct one, only the bootsplash is not from T-com as it was originally, but the LG logo. I just hope that I wont have to use warranty in the future cause without the original logo it is obvious that the phone was flashed outside the original distribution from the operator. Or is there a way to get the logo back? Am I doing something wrong?
[G3 General] hyelton:
For changing logo you have to root
[G3 General] MWGiants:
Hey so I'm also stuck in fastboot. I have the .tot file for my version...how do you get the specific .img files out of that giant file dump?
[G3 General] tememi2005:
hi

i am using g3 verizon and need ti remove its version and put an international version. possible?
[G3 General] hyelton:
No. Only way is custom ROM meant for that model. Flashing a wrong model will result in problems
[G3 General] tememi2005:
Thanks!

Could u helpe please find a custom one and the way to do thay.
[G3 General] hyelton:
Just go look in the G3 Verizon development and find something you might like
[G3 General] checasey:
I tried flashify and Bump to install TWRP but it did not work so I am going to try this method to finally get my LG G3 D855 rooted with a TWRP recovery so I can use Xposed Framework and G3 Tweaks.

My only question is this, when trying the flashify and bump methods of installing TWRP when rebooting into recovery the phone just has a black screen and the notification light flashes all the colours it has. So will this method fix that issue too?
[G3 General] shaneg79:
I know these are for the regular LG G3 but does anyone know if the little brother the LG G3 Vigor will ever have the stock firmware so we can flash back to stock and get the system updates from our carrier? Thanks!
[G3 General] chiwjiajun:
Help for resetting my lg g3

Hi. May I know which D855 TOT file should i download for my international ver of g3, its v10k.​
[G3 General] hyelton:
First please don't quote the entire OP.

2. What is international to you? International to me(since i live in the USA ) is Any country that is NOT USA. So your phone is not "international"

Since your using a D855 use the kdz method and just pick whatever kdz marches the country you or the phone is from.
[G3 General] Thot Ctrl:
Would it be possible to get a KDZ for the new Indian 20H firmware? ^^
[G3 General] hyelton:
If you have an Indian d855 just go to lgkdz.com and enter your imei. If its available.

I don't have it yet.
[G3 General] Thot Ctrl:
I would rather not enter my IMEI on some random site but thanks for the response
[G3 General] hyelton:
That's not some random site, that's MY site.. I'm sure I wouldn't be here if I was running a scam on one of my sites lol. But I do understand what you mean, but everything I post is safe.
[G3 General] Thot Ctrl:
I did not mean it as an offense but I hope you understand the reason for my hesitation :o
[G3 General] hyelton:
No offence taken :). Just stating I have 6k+ posts I wouldn't be here if I was scaming :). Also since I added that site about 1,000 people have used it so far.

At the current moment that's your only chance of getting it if it's available. But as time goes I'm sure I'll have it and upload it.
[G3 General] chiwjiajun:
I'm so sorry. Didn't know where to start quoting. Mine should be international since I'm not living in the USA. So just wanted to make sure, I should choose one that matches the country I'm currently in?
[G3 General] adikinzor:
Tot method works just fine. i downgraded to kitkat some months ago.

However, kdz method got my g3 hard bricked ( lg flash tool crashed halfway through) while trying to go back to stock Lollipop. i cant find any method to repair it though...
[G3 General] hyelton:
Thread cleaned by [MENTION=3506348]Toledo_JAB[/MENTION]

It is well known that mobile device flashing software gets flagged as a virus.
[G3 General] manyakurt:
Hi everyone,

I accidentally changed system file's permission so that my phone couldnt boot. I decided to flash stock room, downloaded D85520h_00 and followed the picture now firmware update screen stuck at 13% and I dont know what to do any help pls?

edit: my fault I closed the lg mobile suport tool by pressing ok after connection failed error. I shouldn't I guess :)
[G3 General] hyelton:
So im guessing your model is a D855 32GB model? dont pay attention to whats on your phone screen once in download mode, you need to watch whats on your computer.
[G3 General] manyakurt:
my fault, great contribution many thanks
[G3 General] hyelton:
Glad you got it :D
[G3 General] Dj1nNs:
A lot of thanks

Many thanks for your tutorial that simply save my LG G3. KDZ solution is the best, i have try the tot one from another tutorial french (yeah because i am) and i couldn't do the update to 4.4.2 from 5.0 .. KDZ did everything good.

Again thanks you a lot
[G3 General] frank.devliegher:
KDZ procedure, 855, bricked my phone?

Decided to go for a custom rom ... was running lollipop on my LG G3 855 16GB

Root, done

TWRP, dd method, done (see trwp site itself)

but on reboot, signing verification error ... :(

Cause is the lollipop version, I read, solution to reflash to stock, so this is the thread about this ... Reflash to KitKat, to make install of TWRP really easy, that was the plan.

Tried the KDZ method, followed the steps, but the language is NOT changed to english ... although it's in bold ... making the text all appears as ??? ???? ??????? ??? ?? ???? ... On the phone it was 5% done, but than a pop-up came with ??? ??? and ???? as action, so I pressed ????. Was running in a loop, same loop multiple times. When closing the flash tool, and restarting, I selected English, which caused the dialogs to be readable. Dialog said to remove phone, restart and reconnect ...

and now I am stuck ...

cannot get in download mode, the verification error is showing up also there :(

normal boot is just not working anymore

dead end?

Any help really appreciated!

Thx, Frank

UPDATE: followed the steps at xdaforums.com/lg-g3/general/unbrick-lg-g3-qhsusbbulk-qualcomm-9008-t3072091 with the KitKat TOT file (D855 16GB EU). Did work, got phone back in download mode. Next step was to flash stock KitKat firmware. Tried the TOT and KDZ methods, both failed. TOT method returned 'Can't change to download mode', tried multiple times, no luck ... I read somewhere that Windows8 could be a reason, so did retry on a windows7 (portable) and yes it was a success, G3 is back!
[G3 General] Webster200x:
Hi, i'm trying to install (downgrade to kitkat) and i tried every method and i get the same result it doesn't matter if i try KDZ or TOT for me it doesn't work. When i use TOT it says waiting for connection and it stays there for ~1 hour (at least that is how much i left it.)

I'm using a D855.
[G3 General] hyelton:
When you tried the tot method did you change your com port to com41 in device manager?
[G3 General] Webster200x:
Yes i did but still no luck, i tried front and back usb 2.0 and 3.0 ports and different cables but still cant get it to move.
[G3 General] hyelton:
So phone is in download mode and lgemodem shows up in device manager and you changed that to com41?
[G3 General] Webster200x:
Yes, i started to try to downgrade last night (because my External 64 gb MircoSD card is not being recognized not even my 16 gb or 1 gb micro sd cards) And i thought that it must be a problem with the lollipop upgrade. Plus the phone is so slow sometimes...

LE: Did this before on HTC, Samsung and Google Nexus devices so its not really my first time doing this.
[G3 General] Sum14u2nvy:
Hi just a question. Haven't been doing this for a while so I'm kinda rusty. I just Upgraded my stock D851 to Lollipop using LG's Mobile Support tool. T-Mobile said that their OTA should be coming out soon, so I'd like to have that. If I use the TOT method, will it work for my device?

Thanks!
[G3 General] PDXMatt:
The Lollipop update that you updated to via the LG Update Tool is the same version that will be sent OTA. Since you are already running that version/build you will not get a notification that there is a new OTA Update. You're all set at this point.

[emoji3]
[G3 General] RaDi:
Hay, I'm on Lollipop rooted with TWRP recovery, if I flashed the latest kdz for my D855, will it go back to stock and I lose root and recovery? I want the phone to be back to stock as I'm going to sell it
[G3 General] hyelton:
Yes it does
[G3 General] PDXMatt:
If you flash a stock ROM you will lose root and recovery.
[G3 General] hyelton:
Keep in mind these are not ROMs [emoji14]. These are factory lg firmwares.
[G3 General] PDXMatt:
Yes I know. It's just what most people refer to them as.
[G3 General] BR7fan:
I have the D850 and from what read it can be done only with tot,correct ?

I've followed the link to get tot files, but all I seen was stock zip with image files. Is this what I use,or am I missing something ?
[G3 General] hyelton:
Yes tot method. The zip files you extract to get the tot file. There in zipped files because there so big.
[G3 General] Joshnz:
IS it possible to flash the stock firmware with twrp and expect it to revert to stock?
[G3 General] hyelton:
I think you need to actually read the OP... no its not. This guide is the only method of going back to completely stock. You can't go back to 100% stock by using twrp.

The firmwares here are directly from LG
[G3 General] Apocryphobia:
Assistance.

I went through the process of updating my 2 week old LG G3 to lollipop via this walkthrough from LG http://www.lg.com/us/mobile-phones/TMUS_Update

After the update I experienced major lag in the OS performing various tasks as well as extreme heat developing at the camera/rear button area.

I did not like this so I chose to downgrade following the walkthrough mentioned on these forums which worked flawlessly.

I have Tmobile in US and used this image "Download Android 4.4.2 V10C T-Mobile LG G3 Stock Firmware D851."

I was once again at the original kitkat and happy until I realized the sim card was no longer working and/or the phone/data service was not working. I attempted to check networks and settings as well as manually set up an APN which would not save.

After this I had a theory that perhaps something is wrong with the original stock firmware or way in which it flashed. So I installed lollipop again using the above method, my sim immediately started working and I had 4gLTE and phone service again. I then flashed once again back to stock and again the sim card was no longer recognized.

As it stands now I do not want lollipop but flashing back to kitkat does not seem to work when using a tot file. I attempted to flash kitkat using the kdz file but it seems to be updated because it puts me back to lollipop.

Does anyone know for sure if there is a stock lg g3 kdz file that is in fact kitkat and not lollipop? I'd like to try flashing back to kitkat NOT using a tot which seems to cause the sim issue. Has anyone else experienced this issue?

I used this method to flash to lollipop. "LG Mobile Support Tool" http://www.lg.com/us/mobile-phones/TMUS_Update

I used this kdz method to downgrade which still left me at lollipop (I saw that others were also left back at lollipop as if the kdz image that gets downloaded is lollipop). http://xdaforums.com/showthread.php?t=2785089 Is this file lollipop or kitkat because it left me with kitkat? http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/T-Mobile+D851/ D85110R_00.kdz

I then used the TOT method to get me back to kitkat where the sim is not working.

My final theory is to try the kdz method again but confirm the kdz file is in fact kitkat and not lollipop.

Am I doing anything wrong? Critic me please if so :)
[G3 General] hyelton:
First off the kdz is kitkat, theres both kitkat and lollipop there., If you read this guide applies to all sorts of different models and different issues. When you download from MY server you get what it is as labeled If its Kitkat its kitkat if its lollipop its lollipop :).

Anyway when you flashed did you perform a factory reset? If not that could most likely be your problem. Perform a factory reset at least 3-5 times after flashing if you have signal/sim issues.
[G3 General] Apocryphobia:
Thank you for the response. When I flashed using D85110R_00.kdzD85110R_00.kdz1259476KB Dec 14 2014 11:07:57 PM it booted up with lollipop. I assumed by the date of the file that it was in fact kitkat but it was not or perhaps it didn't actually flash even though it said it had flashed correctly. Thanks for clarification. I'm sure it's probably a matter of me not understanding :)

I did perform factory resets but not 3-5 times. Perhaps I can try that.
[G3 General] Sum14u2nvy:
Thanks man! Now just another question lol. I hate the stock feeling. And I want to root, but the problem is my device is patched. Can I use this to downgrade my Android Version and root it?
[G3 General] PDXMatt:
Not without root already. It probably won't be long until this version is rooted.