yashsingh1/xdaforums huggingface dataset:
[G2 General] sahilkhurana:
Very well written guide and I came so close to flashing stock ROM.

But after extracting the KDZ file, the software is crashing. Any ideas how to fix it. I have tried it on another PC and it still crashes. No able to flash ROM. I am coming from a CM based KK ROM.
[G2 General] numec:
yes i followed the steps..win enabler ON, and the vbs script running..

please helpp

---------- Post added at 06:48 AM ---------- Previous post was at 06:29 AM ----------

its running fine now but there is no language to be selected in the dialog box. there is an option for the country 1) rep of korea 2) diff country though..any help?
[G2 General] hyelton:
Just click okay it should let you go ahead even with it blank
[G2 General] numec:
thanks man! just did it and updated from 20a SEA to 20b EUR now..solved my issue (no LTE option, have to manually enable each time reboot)..:good:
[G2 General] sahilkhurana:
Forgot to mention that I am doing this on Optimus G Pro ( have downloaded corresponding FW) and the update tool is crashing on me after extraction is done.
[G2 General] hyelton:
Awesome !;)
[G2 General] PunkUnity:
I had to get a second LG G2. Now I have to downgrade all over again. It's and ATT 4.4.2 phone out of the box. I cannot get the LG Flashtool to flash anything onto my phone. It just sits at 0%... Im in download mode, and got everything setup correctly, I think. What am I missing here?
[G2 General] hyelton:
Change the com port correct?
[G2 General] gotcha112:
So Lost

Hey guys,

I appreciate the effort you have put into making this thread!!! Unfortunately, i am wondering if this guide is relevant any longer? I have tried all 3 methods and nothing worked. Now, I will admit that i am a noob and a bit of nitwit when it comes to this stuff. Maybe i just need a HIGHLY detailed step-by-litlle-step guide, but i just cant figure out what im doing wrong??

I have a tmobile d801 32gb black g2, i rooted it, flashed a couple roms, decided to go back to stock LG/Tmobile. So i found an LG G Flex (couldnt find a g2 rom?) to make matters worse, my dumbass downloads the rom and flashed it to my phone, only to realize later that it was a G FLex rom intended for a D802 (international - i think)!!!! It shows fastboot and i am able to get it into download mode.

I should also say that when using the LG FlashTool (V1.8.1.1023) it says crossdl D801 D802. Then displays red download fail.

Any help you guys could give me would just make my day. Other than the obvious... dont be a dumbass. ;)
[G2 General] PunkUnity:
Most likely the issue. Device Manager will not let me change com ports at this time. Thanks
[G2 General] hyelton:
1st off if you read the last few posts you'll see that the guide is relevant and working... And its the only possible method. 2. If you follow the guide completely it will work, but If you really had flashed a G flex firmware when you do go back to stock you might have issues as most phones flashing a firmware for a entirely different phone will screw up a lot of things.

When doing the tot method make sure your using the correct DLL file or you will get a mismatch error.
[G2 General] hyelton:
How are you not able to change it? Never heard of that issue.
[G2 General] gotcha112:
Ah no, that sucks. Do you think I would be better off doing a JTAG? I hope you dont think I was being rude? Not that way at all...Just really frustrated!!
[G2 General] hyelton:
I didn't take it as rude. I just get a lot of people complaining about it and don't understand its the ONLY method lol.

I don't really know much about JTAG stuff . what DLL file are you using with the 3rd method? Cause if your not using the right one you'll get the mismatch error.
[G2 General] gotcha112:
C:\lgflash\LGD801_20130811_LGFLASHv160.dll
[G2 General] hyelton:
Go back to the OP where you downloaded the T-Mobile tot file download the megalock file and extract it use that DLL file
[G2 General] gotcha112:
Thanks bud, will give that a try!
[G2 General] PunkUnity:
My Windows is randomly not genuine. All kinds of things won't work. Will try it on admin account
[G2 General] hyelton:
Okay. Better get it Genuine. Windows will say that also even if it is and just needs the key
[G2 General] PunkUnity:
Yay I type in the key but no dice. Thanks. Not trying to get off topic. I've been successful before. Thanks
[G2 General] gotcha112:
Well the Flashtool says thats an incorrect dll... Im screwed arent I?
[G2 General] hyelton:
You did extract the file right? It says incorrect DLL or the same phone model mismatch?
[G2 General] maximus20895:
Can I "upgrade" to 12B from 10B on a Verizon VS980 or is that a bad idea?

From what I can tell I eventually will want to upgrade to 24A which has kitkat, but I need a firmware that is not 10B in order to upgrade it.

Can someone shed some light?

Thanks!
[G2 General] gotcha112:
Here is what im seeing...
[G2 General] waz675:
The DLL file you have in the window is to run the flash tool. You need anothee DLL file for your phone.

I use an extracted DLL using "python27/extracted" directory. Is that in this guide? I haven't read the guide for ages.
[G2 General] MrMagnificent1:
LG G2 D803 Sasktel

I have a LG G2 D803 Sasktel which I OTAed Kitkat on it :(

After doing some research I found that I cant Root on kitkat so I decided to downgrade back to jellybean and used the method 2 downgrade procedure posted .

I have downloaded BELL Canada D803B10A_00 ( Cause I thought SaskTel and Bell had same firmware :confused: ) and flashed it via Lg tools. Now I am stuck in Boot loop, When the lg logo shows up it just restarts again however I can put the phone in download mode.

Any help guys:(
[G2 General] maddog497:
Your almost there.

Using the buttons, (Google how to reset a LG G2 using the volume and power keys)

Do a factory reset and you should be good to go.

This is identified in the original post.
[G2 General] Titchener17:
You can root kit Kat, maybe just not your model but not sure? Does ioroot support your model?
[G2 General] MrMagnificent1:
It doesn't lets me it just restarts again and again if I hold Volume - and Power it just again goes to the LG logo and then turns off.
[G2 General] errikosd:
Turn your phone off, completely off.

Then, hold down the volume down button and the power button until you see the LG logo. Right at that point release the power button and hold it again. You should be asked if you want to factory reset it. Using the power and volume keys answer yes and you are good to go.
[G2 General] MrMagnificent1:
Lg g2 d803

Thank you very much guys I just did it :)

I wasn't following the pattern of the volume and power keys correctly now its done thank u so much guys.

How I did it

1 Turn off the phone by holding all three buttons ( in my case all of them otherwise it would just restart )

2 Pressed the vol - button and kept it pressed.

3 Now here comes the trickier step press power button and as soon as lg logo appears let go and press again (Now this last part should be quick) to get it to the factory reset mode. Volume - should be kept pressed during the step 3.

After 2 or 3 tries I got it.:good:
[G2 General] suntzu14:
VS980

Hi guys, I am stuck at the "download mode" part. I enter download mode by holding + key while I plug in USB, fine. Then my phone goes to the "firmware update" screen and just sits there at 0%, saying "rooted" in red at the bottom. My PC shows a dialog box that says "installing drivers", but after a few minutes it says "failed". I've done a factory reset hoping that would help, but it didn't.

No clue what to do... any help?

ps. I attached a screenshot of my pc.
[G2 General] MacroMania:
scary bootloops

downgraded from ZVC back to stock on LS980. used the tot method. since then random bootloops.

with ZVC no bootloops but as soon as ZV7 or ZV8 is flashed system goes into bootloops

with the stock firmware the power key would not even shut the phone down. used usb cable insertion at the same time as power key press to shut down the phone.

factory reset done. i can see media connection icon on the main screen without the usb cable connected !! This happens only with ZV7 or ZV8 but not ZVC.

i wouldve been satisfied with ZVC but cant use ioroot to get a complete root and flash the EFS backup.

i really want to get back to stock now as rooting for stock is possible. any suggestions are welcome

edit: ill give a try the autorec method and install twrp for kitkat

edit2: i have successfully rooted with io25 on my LS980 and used autorec to flash twrp then used twrp to restore efs partitions. thank you for the work devs
[G2 General] wezzywebb:
Guys,I'm having major problems updating,i can't for the life of me do steps 4/5 ,in windows 7 or 8 on a boot camped mac and mac pro,if i delete the folder /files then there nowhere to put the copied files !! please please can someone help me :o
[G2 General] hyelton:
Delete the files IN the folder and replace them. Not delete the folder..
[G2 General] wezzywebb:
Mmm still cant do it,when i go to the C:ProgrameData\LGMOBILEAX and open it to delete files ,it opens in wordpad and wont let me replace the files
[G2 General] hyelton:
That doesn't even make any sense lol.. A folder shouldn't open in wordpad
[G2 General] wezzywebb:
yep thats what i thought ,i,m obviously doing something stupid,sorry its notepad it opens in
[G2 General] ingoljosh:
Thanks to my friend who thought it would be a GREAT idea to install OTA update (ROOTED WITH MANY MODS) i was stuck in TWRP . Thanks to this thread and OP i was able to go back to stock very easily.

I am actually glad because now i have the new Kit Kat update.

Im gonna stick to stock rom for a minute.

FYI. I have the Sprint LS980 Running ZVC KitKat. Stock

---------- Post added at 10:55 AM ---------- Previous post was at 10:55 AM ----------

thanks for this - you're freakin awesome
[G2 General] treebill:
so i had this working last night, opened the program (manual as the script doesn't work on 8.1) but not when i try open UpTestEX_mod2_marwin.exe i get this error in the HTTS server

!->15/04 19:12:58 [127.0.0.1:51608>9002] (t1 14) >\swdata\client\inhouse\UpTestEX_1.1.4.3.cab(Undefined/default)
Error. File not found.

and the program just doesn't open at all, i will keep trying but any suggestions would be nice.

edit: disabled comodo and all is working, vbs still crashes out but manual method is working, well it's flashing so i hope it goes ok lol
[G2 General] wezzywebb:
Could somebody please help me to delete,replace the LGMOBILEAX files within windows 7 ,i,m really pulling my hair out :confused:
[G2 General] treebill:
go to C:\ProgramData\LGMOBILEAX

highlight all the files and press delete, will say you need permission just click ok and then copy files over.
[G2 General] dixieflatline76:
Hi,

When using the LG R&D tool to flash back to stock kdz, does the tool:

1) wipe my "internal storage" partition? - when I flash new roms, I always count on having that partition being there where i keep my personal stuff and backups etc.

2) wipe recovery? - will I loose TWRP? - will I be able to nandroid back to my paranoid backup?

3) any good way to get to stock kitkat with root? - I am on paranoid right now, anyway to go to stock kitkat with root?

Thanks!

Karl
[G2 General] lucasd28:
i am having denied permissions when trying to execute the script

HELPP I AM BRICKED
[G2 General] hyelton:
Try another PC and make sure you are signed into an account which has admin rights.
[G2 General] lucasd28:
nevermind, i did it.after a LOT of research
[G2 General] treebill:
Had this problem on Windows 8.1, I just followed the install guide. Pretty easy to do.
[G2 General] lucasd28:
in my download mode it still says ''rooted'',i dont really care about that,but if i need LG assistance,how i remove the ''rooted' on download mode?
[G2 General] taufancandra:
hello, i just bought an LG LS980 G2 for sprint, and intend to use in my country for GSM.

my LG G2 has ZVA stock firmware.

i have tried to root and unlock it for GSM use, but the result is still not good for me.

call and sms ok, but i still have trouble to connect to data network.

so, i intend to downgrade using TOT file of ZV8.

now, i just want to make sure....

so, is it okay to flash ZV8 over ZVA stock using the method on the first page?

it will not end bricked up?

is there any precaution before running the steps?

is it necessary to flash aboot zv7 before?

thank you
[G2 General] hyelton:
Flashing it won't change anything.... Make sure your adding your carriers APN if you don't data won't work
[G2 General] warlock94:
Connect it when the phone is turned on and usb debugging is enabled

The kdz method is for when you have a working ROM

As for the TOT method you can do it directly from the download mode
[G2 General] nbhnohome:
Flash back to Stock with TWRP recovery

Hi guys

I am new to LG G2. I bought a used one which has not been rooted but have TWRP 2.6 installed. I wonder if it is safe to flash back to stock with TWRP recovery still on the phone and not the Stock Recovery ?

*******PS

I've tried to flash my Claro G2 back to stock using kdz file and the guide posted in this thread but everytime I try, LG service update (???) keeps forced closing. And also when the phone is in download mode and plugged into my PC, one of the 3 drivers (LG USB Modem Driver) always fails to install.

Can you guys please give me some advice or suggestion of how to flash it back to Stock ?

Thank you
[G2 General] apcplaza:
Hi I have a Verizon LG G2 Stock ROM Rooted VS98012B this is my original G2. I asked for a replacement because there is a screen issue. I received the replacement phone two (2) days ago and I have been trying to revert the original G2 to stock so I can remove the "ROOTED" in the Rooting status. I did Method 1 and able to run the R&D Test tool. R&D Test tool run the upgrade completely but the phone is still in Firmware Update at 0%.

R&D Test tool settings;

[Select Type] - 3GQCT

[Work Directory] - C:\Users\Administrator\Downloads\LG_KDZ_FW-Update_OfflineFix (2)\KDZ_FW_UPD_EN

[PhoneMode] - DIAG

[Select kdz file] - C:\Users\Administrator\Downloads\VS98012B_00.kdz

I clicked NORMAL WEB UPGRADE TEST button then UPGRADE START.

A window will pop out "Select Country & Language". I noticed that the Language list is empty. Is that normal?

I select Country = Republic of Korea

Language = blank

Then click OK button

LG Mobile Support Tool runs and complete but nothing happens to the phone.

Please help, I have three (3) more days to return this to "UNROOTED" status so they can honor my warranty.

Thank you!
[G2 General] ingoljosh:
life saver
[G2 General] keving75:
Help Please!!

I was rooted running JB Roms w/o issue. Flashed the the KK baseband and went to the Maladus KK ROM. No problems really/

I was having some calling issues w/ that ROM after a few day, so I decided to restore a backup to the old JB ROM and did not flash the old baseband. Now I am stuck. Phone will ony flash the LG image when I hold volume down and power.

Can I do anything to restore the phone w/ data?

Or do I have to factory Reset and start over?
[G2 General] hyelton:
Just follow this guide. You'll have to reset :/
[G2 General] keving75:
By reset, you mean I will have a wiped phone? If that is the case, shouldn't I just use the hard keys and do a factory reset?

I started downloading some of the files in the guide but Chrome says that are malicious, so I am a little worried about going further.
[G2 General] hyelton:
You can try a reset but if it's a baseband issue its not gonna fix that. Also its been brought up several times the files are safe. It says that cause there's a webserver in the files. Whats your phone model?
[G2 General] keving75:
Verizon VS980
[G2 General] hyelton:
Oh okay just wondering.
[G2 General] keving75:
So you think that going through these steps will restore the phone and the baseband? And when done the phone is completely formatted?

Sorry to beat a dead horse on this, I just lost my business tool and i am trying to get it back as best possible. I appreciate the feedback.
[G2 General] hyelton:
Yes. This method is the ONLY method of restoring back to stock lol. and about formatted Idk on that one. It may or may not.
[G2 General] abby_nitewolf:
By any chance does anybody have the md5 checksum for this file VS98011A_01.kdz . I searched all over and i can't seem to find it. Thank you.
[G2 General] hyelton:
Any reason why you would need it? Sorry I don't have it but the file has been downloaded1,000s of times and was uploaded by me to my server.
[G2 General] abby_nitewolf:
I just don't want to flash a corrupt file. But all i did was download it three times and compared all 3 checksums and they seem to match. I'll just have to cross my fingers and hope for the best.

BTW nice photography site.
[G2 General] hyelton:
Oh okay :) I always just use a Download Manager to make sure the file gets completely downloaded.

Thank you :) Its not really complete just using Flickr at the moment for my Photography just haven't had the time
[G2 General] pancabit:
Hi, I'm new here and thanks a lot to provide this instruction to go back to stock firmware.

I'm trying to use TOT method for my sprint G2. However, the computer cannot recognize my cellphone under download mode. This results in the fact that I cannot change the port number to be 41 and also cannot proceed to write the stock firmware into the phone. Anyone can provide a clue to solve this issue? Many thanks!

Additional info: my phone is currently bricked and I can only see LG logo. When I connect usb cable to the computer under LG logo screen, the phone can be recognized by the computer and I can see the phone under "Ports" in "Device Manager". But it's cannot be recognized by the computer under download mode.
[G2 General] Ravi Shanghavi:
Getting a permission denied on running vbs script, error line 72. Windows 7 64bit. Thoughts? I can't say that the other methods are clear or make sense to me. I'm running a Canadian Bell phone for which I downloaded the kdz from

http://xdaforums.com/showthread.php?t=2687260

If I try method 2, and run UpTestEX_mod2_marwin , select the kdz file and do a Start Upgrade, it crashes after I see a error "extract file error". Tried a different download, and used a download manager. Any thoughts? I don't understand how the tot method would work for bell image either, as I can't see a bell one available.
[G2 General] Ravi Shanghavi:
I wasn't able to get the above methods to work.. so I just used the LG Mobile Support Tool and it upgraded me fine to 4.4.2. Lost root. I only rooted because of the stupid wifi bug where I had to toggle a setting so it doesn't forget my wifi every reboot. I'm hoping that's fixed in 4.4.2 but doubt it, as I saw that it'd dropped my wifi on a reboot before I just did a factory data reset.

Can I flash Rogers firmware onto the d803 which was bought as Bell phone?
[G2 General] SuperSport:
Did you install the drivers for Download Mode? Is there ANY device listed when in Download Mode? Even an unknown device?
[G2 General] saeed_red:
flash lg g2

i have problem with flashing my LG g2

when flashing my LG g2 imei is shown in following picture.

and when working with lgflashtool this error pops up and closes the app.

plz help me.
[G2 General] vipercoyote:
Did you replace the megalock .dll
[G2 General] saeed_red:
yes I did
[G2 General] MacroMania:
Hard Reset question

REMEMBER if you get Bootlooping after flashing perform a factory hard reset!

Instructions Here: https://support.t-mobile.com/docs/DOC-7590

With reference to above instructions

Top 2 steps needs to be performed or any single one of them will suffice ?

After flashing ZV7 tot got bootloops. So used power+vol to get into Android stock recovery 3E. I dont get the factory hard reset option.

As soon as wipe cache is selected phone immediately boots without completing the wipe process.

Im sure that bootloops has something to do with wipe process not being able to complete

please let me know if there is a solution to this
[G2 General] maddog497:
I've been following this thread and have read every post, yes every post. I'm getting ready to take my G2 back to stock so that I can accept the 4.4 update. I would also like to unroot it so I can sell it without having to explain what "rooting" is to the person who may buy it.

My question is, how do I find out what version of D803 I have?

I purchased the phone unlocked from someone local so I have never needed to know if it was a Rogers, Bell or Telus model. (it's a Canadian version)

Are all three close enough that I can use either KDZ file for this?

Hyehton : Thanks for the work you did here and for staying with the thread.

Found my own anwser but that has created another one.

EDIT : I looked back into you folder with the KDZ files and it appears my phone is a Bell version based on the software number on the phone. D803B10d

Unfortunately it appears that file is broke in your Canada folder. I'll look for it elsewhere but could you please check and see what's up with that. Thanks

2nd EDIT : I noticed that some other rooted Canadians were able to use the LG Update tool to upgrade to 4.4.2 without doing anything special. The whole precess went through without an issue. I did however lose root but not an issue for now. The upgrade didn't erease any of my apps of info. So far the only thing I've had to do is add my APN.

Again thanks Hyehton for posting this. Although I never had to use it (yet) I will be leaving a small donation in appreciation for this guide.
[G2 General] hyelton:
Hi your welcome for the guide :). What did you mean the file was broken? How so? It not download fully? Always make sure to use a download manager when downloading large files sometimes that will happen if you use just Chrome or something to download it.
[G2 General] maddog497:
If you go to the directory on storagecow and then to Canada you will see that the Bell file B10D doesn't have the zip icon beside it and the rest do. If I click on any of the other files it pops up a download window. The Bell one .....B10D takes me to a broken link.

Donation made.
[G2 General] hyelton:
Ohh that's just because I never zipped up the file. When you download a zip from my server when you extract it that would be the file you would use. .kdz files is the what the flashtool reads not the zips, the file is fine :)

Thank you for the donation that's appreciated :)
[G2 General] drlenny:
Vs98024a kdz

[MENTION=2607037]hyelton[/MENTION]

VS98024A.kdz
[G2 General] hyelton:
Thanks :) Its been uploaded to my server now, I have a lot more files I`ll hopefully get to uploading today just been extremely busy lately.
[G2 General] dfoshay:
stuck at 49%

I have a Verizon LG G2 VS980 I have tried to flash the kdz file to my phone and it freezes at 49%.. I am not able to boot up my phone it just shows the LG logo .. I have TWRP recovery I have booted into and wiped the date and formated unfortantly I did not back up my recovery so I am not able to install from TWRP. I was trying to side load with adb but also my computer is not recognizing the device when I try to connect as adb... anyone have any suggestions.. I am with out a phone right now
[G2 General] hyelton:
When you say wipe data? Did you format system?
[G2 General] dfoshay:
Yes.. tried a few times still stuck
[G2 General] cacciucco:
To Hyelton

After weeks of running around in circles with method 1 I used method 2, found my own way to save the host file and run the update tool.

It was all over in less then 10 minutes, done perfectly without affecting any apps, files or settings.

I am now on KK 80220C working as new. For UK readers 80220C is the Three UK version which has LTE, no obvious branding and works on a 32GB model running on EE.

Thanks very much for the good work.

C
[G2 General] wezzywebb:
Hi there ,could you please explain step by step how you updated please ,also i get stuck on the lgmobileax part when you have to delete,replace files,any help would be greatly received
[G2 General] sadtears:
I need help

Hi sir, do you have F320S21D. stock ROM? my phone was stucked in boot loop after flashing back to jellybean ROM. :(
[G2 General] maddog497:
If your in a boot loop after going through the steps all that is left is a hard factory reset.