yashsingh1/xdaforums huggingface dataset:
[G2 Android Development] jdgesmlls:
At least on the VS985 variant, holding the power button down alone does nothing. You need to hold "Volume down + Power" (sounds simple enough but make sure you hold BOTH down) to get the phone to reboot from download/boot mode.
[G2 Android Development] scaramonga:
Yes, held all sorts of combination of buttons for ages, no way I could get out of this mode. Anyway, got it fixed by using old LG tool and recovered to stock that way, then installed an older set of drivers I had, and the 2014 tool worked OK after that :) Strange how I was getting that server error though?
[G2 Android Development] kt-Froggy:
I dunno... Seems that people have quite an inconsistent experience with this tool, for whatever reasons. I did see the "connection to server" problems, but they were gone after disconnecting from the Internet (that's why I suggested it). Otherwise, the tool has been working perfectly for me, and I have not seen any other problems people reported here, like hanging at 2% or 4%, etc. I have no idea what would cause these issues...

But anyway, glad to hear you got your phone fixed. :)
[G2 Android Development] Cienight:
The tool is failing (connection or something) but the flashing process keeps going perfectly on the phone
[G2 Android Development] roirraW "edor" ehT:
Howdy! First post of many upcoming ones in the LG G-related sections. Just wanted to report that although the tool (under Windows X Technical Preview) x64 worked 100%, it didn't choose English automatically but it didn't present a problem anyway, and it showed the connection error while using on both my Verizon G3 (VS985.4G) and my wife's, but both G3s downgraded completely successfully anyway. I might've by good habit chosen to manually wipe Cache and Dalvik before trying to boot into the ROM, as I've had lots of experience with downgrades/upgrades/just plain flashing the official completely stock ROM image of bootlooping without wiping those, and it doesn't hurt a thing to do it. Or it might've worked fine without wiping - I can't remember at this point. :D

Thank you! I look forward to helping and contributing what I can in the hopefully not too distant future.
[G2 Android Development] snowlin:
So i've been trying to use this tool for a while now, first was to revert to stock in order to send my phone in for an exchange - i couldnt use this tool but i was able to find another way,

Now i am on my new phone, however i already screwed it up :(

My phone is in a position now where i can only access download mode, i have no recovery and no ROM.

Anytime i try and use this tool, i get up to the point where the flashing should begin, the Mobile support tool reads "Analyzing phone setting" however that entire program freezes up at 27% with 5 second elapsed. No matter what i do in compatibility settings or even if i use alternate computers i experience the same issue.

Does anyone know of a way to fix this? or possibly an alternative method to getting my phone functional again? I would greatly appreciate any help as i am stuck and without a phone now.
[G2 Android Development] damonbarnum:
activesync?

Whenever I press start to run the flash tool it says to "Run or Install ActiveSync Program" I'm on Windows 8.1. Anyone else have this issue and/or a solution? Thanks
[G2 Android Development] cheetah2k:
LG Flash Tool seems broken now with the latest LG PC Suite update. I can no longer flash my LG G3 D855
[G2 Android Development] Golzer:
I think I found a solution,I tried to flash some rom and it's gave me error on the program + on the phone it was 20% and after that nothing so what I did was to remove battery put it back turn on phone again and tried to flash again it gave me some error on the software itself but I didn't click ok or finish and I was able to install the rom :)
[G2 Android Development] keithleyson:
Windows 8 has know problem with this tool. Use Windows 7 instead.

---

The cosmos is also within us. We are made of star stuff. We are a way for the cosmos to know itself.... For all our failings, despite our limitations and fallibilities, We Humans are Capable of Greatness.

- Carl Sagan
[G2 Android Development] Deltadroid:
How about Windows 8.1?
[G2 Android Development] RandomPooka:
Windows 8 and 8.1 have a known issue of being Windows 8.x. Use literally any other OS for everything, because they both suck.
[G2 Android Development] kt-Froggy:
Please... If someone, sometimes has some particular issues on some particular OS, it doesn't mean it sucks. Win 7 was my favourite for a long time, but 8.1 is better in every aspect, even on my ancient (in laptop's terms) Dell D630. And I never had issues with this tool on Win 8.1 (used it many times with different ROM versions on Optimus G and G2). I must be doing something wrong, I guess...
[G2 Android Development] RandomPooka:
Relax, I was being slightly less than serious.
[G2 Android Development] kpirnie:
HAHAHAHAHAHHA!!!!

Awesome!
[G2 Android Development] keithleyson:
I think it was mentioned in the first post that Windows 8 and 8.1 have issues with the tool. I've tried it on my Home machine and it installs everything fine, but during flashing it doesn't Flash to the phone even though the prompts in the tool says so that it's flashing and giving a server error at the end. No such problems on my office machine with Windows 7.

---

The cosmos is also within us. We are made of star stuff. We are a way for the cosmos to know itself.... For all our failings, despite our limitations and fallibilities, We Humans are Capable of Greatness.

- Carl Sagan
[G2 Android Development] kt-Froggy:
Well, the OP says it doesn't work on some machines running Win8.x 64-bit. It must be some specific combinations of the OS and particular hardware setup, because I have no issues with this tool on two Win 8.1 PCs (different brands, but both of them are 64-bit, and both are pretty old). OS compatibility with some hardware can be a PITA, but I don't think this can be generalized as an OS issue.

<offtopic>

Anyway, my response actually was to the comment saying Win 8.x sucks, just because it's Win 8.x. :) Frankly, can't say anything about 8.0, as I haven't used it at all, but 8.1 has been great, even on a hardware most people here would laugh at (over 5 years old).

</offtopic>
[G2 Android Development] jojobans:
whne install kdz error connection to server failed ???
[G2 Android Development] Deltadroid:
I have only an old Windows XP 32 bit machine. Should that be ok?
[G2 Android Development] BajoPrimate:
Yes, Deltadroid. That should be OK.

Cheers. Good luck.

Sent from my LG P76020p-EUR-XX unlocked and rooted
[G2 Android Development] Skyfall007:
i am experiencing "server connection failed" error too.. if i disconnect the internet..it will stuck on 2% and give another error..
[G2 Android Development] Golzer:
Maybe FIX: Try to run the program as a win7 compatibility and if it's giving you any error just wait until process start in phone and dont click "OK" on error.

please replay if it's working for someone :)
[G2 Android Development] scy1192:
Yes this worked, thank you. The tool eventually crashed but by that time my phone (VS985) had started booting up.
[G2 Android Development] NeoFL:
I followed the directions to a T, It flashed the correct rom but didn't flash the recovery... I still have the white 12b Recovery... Also debug fails to work so I cant root with IOroot..
[G2 Android Development] Golzer:
Try to root with PurpleDrake.
[G2 Android Development] rohitaar:
Will this work with my LG P698 (Dual SIM)? on Win 8 x64?

If so, should I install the drivers given by the OP or LG Drivers provided by LG?
[G2 Android Development] Michalko5896:
It should work, drivers provided by OP are same as LG drivers, LG drivers could be newer so use them..
[G2 Android Development] rohitaar:
I can't seem to go into download mode.. (I've tried both volume up and volume down) What should I do?

And you guys sure about P698 Dual SIM with 2.3.4 GB and about 300MB Internal space?
[G2 Android Development] Golzer:
WIN8 FIX - Try to run the program as a win7 compatibility and if it's giving you any error just wait until process start in phone and dont click "OK" on error.
[G2 Android Development] rohitaar:
What should I do if I can't get into download mode?
[G2 Android Development] reikred:
LGE Mobile USB Serial Port (COMnn) missing

Help! I actually managed to unbrick my T-Mobile LG L9 (P769) and install firmware p769-20h, but then I bricked the phone again. And this time I cannot get the COM Port called "LGE Mobile USB Serial Port (COMnn)" to appear when I plug the phone in. It is not hat I have forgotten to set the LGE COM to Port 41, I plainly DO NOT have the LGE COM port/device!

I have tried all kinds of things, uninstall/install LG United Driver before/after plugging in the phone, going into "S/W Upgrade" mode (a.k.a) "Download Mode" before/after plugging the phone into the PC, starting "LGE FLash Tool 2014" before/after plugging in the phone, and also various form of disable/enable/uninstall USB devices, as well rebooting the PC a number of times.

What on earth am I doing wrong? I can't believe I actually had the unbrick working and then screwed up my whole setup so royally. Looking for inspiration to get unstuck, nothing I find on the web seems to apply....

UPDATE: The reason the LGE COM Port did not appear was a worn out USB cable. The cable was good enough for charging, but too worn to transmit a signal well. With a new cable, the LGE COM Port appeared after several minutes of waiting. Uncbricking worked again. Case closed.
[G2 Android Development] reikred:
Are you holding down VolUp BEFORE and DURING and AFTER plugging in the phone battery, and also while plugging in the USB? On my p769 it is essential that VolUp is held down the whole time, or else "S/W Upgrade" (a.k.a "Download Mode") will not appear on the screen.

I'm waiting to see if anyone has ideas on my COM-port problem, thought I might try to help you in the meanwhile.
[G2 Android Development] wannabemixer:
i just flashed the 5.0 lolipop on my phone stock, my question is do i have to flash the modem/basebad or did the lg flash 2014 do that for me?
[G2 Android Development] TheProdigee:
upgrade stopped at 2%

I've been trying to flash original 20D kdz to my D802. I'm on nightly CM11,but also tried on Optimus G3,Blisspop Lolllipop ROM. None of them worked, the upgrade stopped at 2%. My drivers are fine in the PC, I'm running Windows 8.1 64BIT, there are no errors/warning in the devices section. The phone boots up correctly, I can use it,but i want to go back to stock,hopefully remove the ROOTED title as well. Could somebody help me? What could be the problem? Sorry for the English,cheers.
[G2 Android Development] u25150:
If you scroll up a little you probably would find the the answer [emoji16]
[G2 Android Development] intheair86:
Flashing Tool

I have the tool and kdz file... Question, do i have to be connected to the internet to run this tool? My phone is my wifi hotspot... Please and thank you.
[G2 Android Development] TheProdigee:
I can't find it, went back to 25th page but nothing helpful. Could you link me what you thought of exactly?

You don't have to be connected to the internet.
[G2 Android Development] u25150:
[emoji16]
[G2 Android Development] TheProdigee:
Tried it, it doesn't works, I keep getting the error which i attached, I tried waiting for 10 minutes but nothing happens. Any other ideas?

BTW It's a hungarian 16GB D802, bought from Vodafone. Can i use TOT method with this model?
[G2 Android Development] zindank:
Exactly same problem..

What is the solution?
[G2 Android Development] Tinchoska:
hi guys, i have this problem, i cant go through 2% i have the latest flashtool and latest drivers... any idea?

---------- Post added at 10:52 PM ---------- Previous post was at 10:50 PM ----------

sorry, i have a d806 with stock, i need to have a full flash (wipes formats etc) everithing stock...
[G2 Android Development] Golzer:
First be sure the USB Debug is on,be sure the drivers installed and enter download mode again and try to do it again.
[G2 Android Development] Tinchoska:
It seems to be that the 2% problem is getting on all g2s... it's like when flash tool went outline....
[G2 Android Development] TheProdigee:
I had the chance to try it out on an another PC, I got the same error. The drivers are fine, installed them just before the flashing, restarted the PC aswell. USB Debug is on, but I think it have nothing to do with download made,but correct me If am wrong. :)

I guess my phone could be wrong somewhere, but where. :\
[G2 Android Development] Golzer:
if you getting some error just don't touch it and don't click anything on the error wait few mins and you should see process on your phone.

what windows you using?
[G2 Android Development] TheProdigee:
Win 8.1, the other pc running Win 7.

On Win 8.1 tried set the compatibility to win7 but same error.
[G2 Android Development] Golzer:
maybe try to run as admin?
[G2 Android Development] TheProdigee:
Am running it as admin.
[G2 Android Development] u25150:
I don't know what's wrong m8 but am my self has run this new flash tool many time without any issue, i put my file on admin c: folder and turn off the anti virus
[G2 Android Development] Tinchoska:
It keep telling me to retry.... every time.... Its not an error it just don't go further than 2%.... its like the 45% problem....
[G2 Android Development] Golzer:
Can you please show me the error? post screenshot.
[G2 Android Development] TheProdigee:
I don't have any antivirus software,only the windows firewall/defender stuff. Tried to put the whole thing to C:\ but nothing :\
[G2 Android Development] damonbarnum:
this error

I'm running Windows 7. Verizon G3 with 12b stock

Trying to get back to something I can root and load up a custom ROM.

I think I read through all 50ish pages and did a google search and can't seem to find anyone else with the same issue. It will either do this or say please wait while file is being extracted then just stop. I'm tries while in download mode, off, and on. Debugging is on with MTP mode. Running as admin.

Any thoughts, theories, or wild speculations?
[G2 Android Development] damonbarnum:
add'l info

whenever I try to run it makes a cabinet file for the .kdz I try
[G2 Android Development] culot:
Nothing to see here, hi, how is everyone? Deleteme.
[G2 Android Development] u25150:
I think you should estract the kdz first then use the ekstracted kdz not the zip
[G2 Android Development] mor_1228:
when i run lg flash toool everything is fine till i get actual extracting and flashing screen and everything is just ?????? there no english language any help ?
[G2 Android Development] vangoogle:
Yep just ignore the ??? works for me, used it yesterday. u dont really need to read any of it.
[G2 Android Development] mor_1228:
earlier it used to show English but now it shows ?? after i reinstalled window 7
[G2 Android Development] Tinchoska:
Guys, isn't it the same to flash over recovery a flashable KDZ.zip?
[G2 Android Development] sheikhramnuj:
Using this Lg flashtool today but lg mobile support tool say "Upgrade stopped due to an error" . Any solution for this? Thanks!
[G2 Android Development] UpGado:
I have this same problem :confused:

It happens with V20F Korean version of software.

I wonder if this would change if I use any English version?
[G2 Android Development] mor_1228:
it happened with D802 international
[G2 Android Development] sheikhramnuj:
I try to flash stock firmware but software update reaches 2% only after that update error comes out. Any solution fo this one? Btw, im using d802 32gb. Thanks!
[G2 Android Development] Tinchoska:
If you read only the last three pages you'll know that you have to install some drivers posted above
[G2 Android Development] sheikhramnuj:
I already read all the post, install the very latest drivers but the problem still exist.
[G2 Android Development] epwt:
Hahaha... They just shoot the comment, read someone to suggest reading few pages back like you then I believe they'll start reading.
[G2 Android Development] iksi:
Hello. I also have this problem. My situation. I was on cm 12 with twrp recovery. I tryed flash cwm recovery, but after flashing when power the phone on the screen write security error. Next I tryed go to stock by flashing with flash tool 2014, but error on 2 percent. Tryed on 2 machines. Next succesfuly flashed with mobile support, but after flashing phone only reboot on lg logo, and hear lg startup sound. I tryed go to stock recovery, but no luck, and cant do factory reset. Any solution? Thanks. p. s. my phone is lg g2 d802 16 gb.
[G2 Android Development] mood_coolman:
help here please! i followed ur steps one by one, its not going well when i start flashing it tell me that an error occured plug and replug usb cable i dont know why im stuck right here!

---------- Post added at 12:25 PM ---------- Previous post was at 11:49 AM ----------

can u please explain what u exactly do, i have the same problem i have a cloudy g3 rom, i dont know how to flash a tot, and can i extract kdz to get tot?

---------- Post added at 12:30 PM ---------- Previous post was at 12:25 PM ----------

can u please explain what u exactly do, i have the same problem i have a cloudy g3 rom, i dont know how to flash a tot via this flash tool.
[G2 Android Development] pw1nce:
doesnt work

hi it deosnt work , i installed b2cc app and the lg flash tool detetcts my phone , but when i flash with this tool , always error , connecting to server , try again , or stuck n fails at 2% , i tried everythin , turned off wifi , set port to 41 , its just the tool doesnt work , lg online tool is detetcting the phone , any ideas?
[G2 Android Development] MB525:
2% problem on LG G2

[MENTION=5803783]mood_coolman[/MENTION]

It's so long ago that i almost forgot anything...

My problem was the infamous 2% bug with the KDZ. I think reason for this is the wrong device ID set in the 'build.prop' by the G3 rom for the G2. The flash tool expects a G2 but sees a G3.

I did not find a workaround for this BUT there is one for the TOT method. You will need:

- LGUnitedMobileDriver_S51MAN312AP22_ML_WHQL_Ver_3.12.3.exe (version does not matter)

- Setup_LGFlashTool_1.8.1.1023.exe - for flashing of a TOT

- LGUP_8974.dll - this is needed for the flash tool to accept all TOTs

- the right TOT for your device

Please google these, I just checked and found them all. You can also find instructions for them.

Install drivers and LGFlashTool then start it.

Start smartphone in download mode by holding the volume up key while plugging USB in PC. Phone must be off.

Wait for the device recognition then change COM port of the new device in Windows device manager to something between 41-56 so that the flash tool can find the phone. In the model config window of the flash tool select the 'manual mode' then enter the path to the downloaded LGUP_8974.dll in 'DLL' and the path to your TOT file in 'S/W'. Set 'Action mode' to 'BOARD DL' then press 'OK'.

Your phone should be shown on selected COM port. Now you can press Start (the arrow).

After that my phone was a real G2 again and then I could flash the lastest KDZ with the 'LG Flash Tool 2014 mod'.

Good luck!
[G2 Android Development] mood_coolman:
i had serched for a tot for my d802 rom 20a the original one but i didnt found it, i just found kdz for my rom, so is there a way to convert that kdz file to a TOT one by using lg firmware extract?
[G2 Android Development] MB525:
Yes, there are only v1.0a and v1.0b TOTs (at least at StorageCow) but they are okay for the job.
[G2 Android Development] RandomPooka:
I always wonder how many of these issues are caused by the wrong version USB port and/or crappy aftermarket cables.
[G2 Android Development] mcc2005:
Thans very much for this treat - my phone is working again...
[G2 Android Development] kailashnj:
Tried using this tool but there is no CSE Flash button in the 03/07 update or I am not getting that option. kindly help.
[G2 Android Development] ratedadorable:
check here in the link budd hope it'll work hit thankx if you like it :p

http://xdaforums.com/showthread.php?t=2432476
[G2 Android Development] clickanu:
Anyone can help me to root my F320L device for Lollipop. I have lost my imei after flashing Stock Lollipop using LG flash tool 2014. Cant downgrade to kitkat, stuck at 73%. please help
[G2 Android Development] kelvintisw:
My device is a LG G Pro 2 (D838 32GB SEA model with stock firmware Kitkat D83810B. :cool:

After using the awesome LG Flash Tool 2014, my LG G Pro 2 is now running on a stock Taiwanese Lollipop D83820C.. :good::D

Awesome Tool and job.

Thank you quangnhut123 so so much! :good::good::good::fingers-crossed::fingers-crossed::fingers-crossed:
[G2 Android Development] athlonia:
how about LTE connectivity??

hello,

did you managed to get stable LTE/4G connectivity using the new taiwan lollipop rom? thanks in advance.
[G2 Android Development] M.M.K:
I dont know about CDMA!? I've heard it should be 3GQCT- but you(quangnhut123) said you've modded the tool so no problem!

but how about the phone mode? CS_EMERGENCY or EMERGENCY?

I've read many posts. someone said CS_EMERGENCY is for bricked devices(not make sense!) & EMERGENCY for not bricked devices! & another one said should always use CS_EMERGENCY.

really which mode I should use to flash my OptimusG? I'm confused....

& I guess its better you mention this guides in the OP
[G2 Android Development] wwazman:
This finally worked for me too. I had attempted to flash a rom and forgotten to unlock the bootloader, so it was stuck at Security Error. When I tried Cmahendras method, it would halt at 15% saying no connection. I had to download all the updates for visual studio et al, (otherwise even with the 2014 tool it kept disconnecting) but once I did it worked fine. I will note I changed mine from the CDMA settings to the 3q .. did a normal wipe and it fixed it.. first boot it had a red triangle on the robot, but once I rebooted it booted up fine. Good luck for others!
[G2 Android Development] Naxil:
any chance to use it on native linux?
[G2 Android Development] dwegiel:
_STILL NEEDED TO EDIT HOSTS FILE!_

Confirmed on a fresh install of Windows 7. If the hosts file is left vanilla, the program will throw an error that it can't connect to LG server! Redirecting to localhost in the hosts file fixes it!
[G2 Android Development] androidlabs:
server not found issue .. any solution win 7 64 bit service pack 1 ?
[G2 Android Development] roirraW "edor" ehT:
Look up one post above yours.

Sent from my VK810 4G
[G2 Android Development] petar11199:
Hi, I have currently version 20f on my phone, and it says when I go to OTA update, that its the latest version. So can I flash D85520h_00.kdz without rooting the phone to get it on 20h version? I have 16gb europe version of the phone.

Thanks in advance.
[G2 Android Development] androidlabs:
I saw it but but i was confused.. What exactly needed to be edited in host file.. Local host ip.. 192.168.1.1 or any other ip please elaborate.

Thanks
[G2 Android Development] roirraW "edor" ehT:
Try quoting the guy's message and ask him; I haven't needed to so I don't know.

Yes.
[G2 Android Development] petar11199:
Oh, I just noticed that this is thread for LG G2 :eek: . Will the same method of flashing KDZ with flash tool work with LG G3?
[G2 Android Development] roirraW "edor" ehT:
It will.
[G2 Android Development] palswim:
I have an LGL45C brick in Emergency Mode with the correct KDZ/CAB files.

The LG Mobile Support Tool is giving me a "Necessary information not found" error. (The subtext says: "Please contact via http://lgservice.com[009,400,102,102,102].")

Can I do anything to address/fix this?
[G2 Android Development] carlos1984:
when i normal flash it says s/w upgrade and fails at 4% and when cse flash it flashs fine, but I am curious why it fails in normal flash.