yashsingh1/xdaforums huggingface dataset:
[G3 General] hyelton:
Theres nothing specific, other than it could be the battery. Could be the cellular radio, loose connection somewhere, motherboard etc It could be anything.
[G3 General] Benholder90:
Ah difficult to solve then! :(
[G3 General] luc4v:
its my first time going back to stock so i have 2 questions :o

1. Will i get otas after flashing .kdz ? and

2. What do these numbers mean after the model number (10L,10A,30B) ? Which is the right one ?

Thanks in advanced:)
[G3 General] hyelton:
Yes as it's stock and as long as it's not a US carrier model since they sometimes require you to be on that exact carrier before the update will work.

What matters is as long as your flashing the correct model. 10x is KitKat, 20x is Lollipop, 30x is MM etc
[G3 General] TeranG__:
now i'm using custom rom nougat xenonhd, cant get into os or twrp, but i can go to download mode. My device is d855 international and i want to go to stock marshmallow. I have read instruction and confuse to use kdz or tot methode, and which rom should i download (too many choices)? thank you
[G3 General] luc4v:
Thank you very much! going to try it out now :)
[G3 General] Kr3Ep:
Hello I have 3 questions:

Which method should I follow if I have Lineage OS (android 7.1) with NO root?

Do I need root on my phone for this to work?

Will this remove twrp aswell?
[G3 General] hyelton:
If you still have twrp I recommend flashing a stock based firmware first for your model then go back to stock.

No you don't need root this is stock. And yes it will remove twrp
[G3 General] Kr3Ep:
Thank you

What do you mean by flashing a stock based firmware then going back to stock?

Should I just go into twrp wipe the internal memory and flash the v30n kdz? I'm sorry for the questions but this is my only phone and I don't want to bick it :)

Edit: Oh I should mention that I have an LG G3 d855 :)
[G3 General] hyelton:
By flashing something that's stock as in a firmware that's not CM. like a stock debloated firmware etc. Then flash back to stock. Since CM roms do cause issues with detection.
[G3 General] Kr3Ep:
Im sorry but I can't really understand. Can you please point me to a tutorial or something like that? :)

As far as I understand I need to flash the stock firmware (like stock LG marshmallow) then do the whole LG Flash Tool stuff thats written in the tutorial?
[G3 General] hyelton:
Yes. Flashing a stock based firmware is no different than flashing a CM rom. You download the rom, flash it via twrp. Sorry don't have any specific custom stock rom links for the D855 as I don't own one so haven't really kept up with the android Dev section.
[G3 General] Kr3Ep:
Allright Thank you for your help :)

Do you think that this will work? http://www.droidviews.com/install-stock-android-marshmallow-lg-g3-d855-using-twrp-recovery/
[G3 General] Sc4ryB3ar:
hello, just a couple of hours ago my phone froze. after about 5 mins, i pulled the battery, and tried to reboot. it would get past the lg screen and then start blinking red and blue.

I've been reading ever since. I haven't done any of this type of work in a very long time, so I have a few questions..

1: Is kdz-ing or tot-ing back to stock possible on a linux system, or do i need windows (it seems like this is the case)

2: I've looked at the instructions in post #2 (I have a d850) and they seem straight forward enough, my question is about the firmware.... there are a ton of files in the download area... which ones do i need? all the stuff in the first level d850 folder of the download link? or the stuff in the lollipop folder? and then there also a d850pr20a_01.kdz uploaded just a few days ago. is this the newest? or where does this fit in to the process??

thank you very much for any help. i would very much like to get my phone back running fairly quickly
[G3 General] hyelton:
Was the phone rooted in anyway? or was it stock and it just started bootlooping? Did you perform a factory reset by using the correct button combo with the power and vol buttons?

1. No you would need a PC

2.The newest firmware available is V10 which is KitKat, and you would have to OTA update to get up to date as long as you do have the phone with an AT&T sim in it. D850PR is not for the AT&T model.

But, if your phone was all bone stock, and the bootloop happened and performing a factory reset does not work, then its most likely a battery issue(very common!) or a hardware failure of somesort, and flashing a firmware wont fix anything.
[G3 General] Sc4ryB3ar:
yes it was rooted, and has been since I bought the phone, hence the very long time of having to mess around with this stuff.

I am on the latest official twrp image, can't remember exactly, but i think it is 3.0.2.0. and am running a RR nightly from last week. I wasn't doing anything exceptional when the freeze happened, just browsing the interwebs on chrome. and it won't let me into recovery mode, not even to those blinding factory reset screens with power+vol down, nor will it let me into download mode with power+vol up

it may be a battery issue, but I was running into some of those back in December, so I stopped by the batteries plus store, and picked a new one, so It "should" be fine... but who knows...

seeing as i can't get LGUP to work right on my linux distro, i'm going to see if I can get something to happen with my girlfriends laptop and report back.

thank you for your quick reply
[G3 General] hyelton:
Yeah Linux and the flashtools don't work correctly at all. Also make sure your using a USB 2.0 port. USB 3.0 won't work at all. And as well since you where running CM flashtool doesn't play well with it.
[G3 General] Sc4ryB3ar:
Well, I'm calling it a hardware malfunction.... I can't get Windows to recognize it as anything but QHSUSB_BULK, and that won't allow for a connection, stopping it from getting into Download Mode, or even in adb.... adb isn't recognizing it as a device. I can't get it to boot into recovery, not matter anything I try, and it won't boot normally....So, I can't really make anyhting happen from this point. thank you very much for your assistance with trying.
[G3 General] hyelton:
Yeah seeing that in device manager pretty much means a hard brick. I have been seeing a lot of dead G3s lately.
[G3 General] Kr3Ep:
Hi I restored my rooted stock backup with twrp and unrooted my G3 D855(removed kingroot). I can not update the software now(im on v30c and the new version is v30n). If I try it only restarts the phone. I think (not sure) that I still have twrp installed and that might cause the problem. Can you please help? Which method should I follow?
[G3 General] hyelton:
If your rooted you can't do ota updates either. And yes unless you flashed stock recovery you still have twrp. Just follow the guide and use lgup.
[G3 General] Kr3Ep:
Thanks!

I know im a pain in the butt and sorry for the noob questions I promise this is the last one:

Do I need to follow this? https://xdaforums.com/showpost.php?p=64624353&postcount=3 (At the "TO DO A FULL WIPE AND INSTALL MM" part?)

with the proper kdz and I will have stock out of the box recovery, bootloader, firmaware and everything? Just like I opened the phone the first time I bought it?

Thanks again :)
[G3 General] hyelton:
No problem,

Yes exactly! Just make sure you choose the refurbish option. And first attempt it with the device booted into android and USB debugging mode on.
[G3 General] Kr3Ep:
The device booted into android? So I dont have to boot the device into download mode with holding the volume up button?
[G3 General] hyelton:
No as lgup will do that
[G3 General] Kr3Ep:
Alright Thank You Sir for your help. I really appreciate it :) Have a nice day!
[G3 General] Kr3Ep:
Do you think that I'll have my warranty back?
[G3 General] hyelton:
There would be no reason why not. Since it would be 100% stock.
[G3 General] thedeparted2:
thank you work very well for m i have choose a normal mode, now no fastbootst error
[G3 General] hyelton:
You need to choose referbish always.
[G3 General] ognjen73:
Hello guys,

So after many years of using Samsung phones i recently got bored and bought myself an LGG3. And i noticed when i boot it shows Warning "current version is not available for uses. cant find matches cost for NT code mcc/mnc[74801], subset[ff]" And i also noticed my reception is awful. So i have read on forums everything i clould find and discovered im not on the version that is for my device. Im running. V20o but should be running v20D. I tried several metods of flashing and error is still here and nothing changed exept all my data witch got deleted. Can someone tell me why after flashing V20D for more than 20 times for the past few hours im still on 20o?

Scince i came from samsung phones flashing lg is a bit more advanced so i must be doing something wrong.
[G3 General] bigzdog:
D850

Tried to flash stock following [Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ & TOT Method With LGUP Post #2 https://xdaforums.com/sho...24&postcount=2

After it gets to ~90% phone reboots and FlashTool reports waiting for reset 40seconds. Phone continues to reboot after displaying inital LG logo screen for several seconds. Eventually after 40 sec timeout FlashTool fails.

Phone continues to reboot until I remove the battery.

I can get into download mode and recovery (to factory reset). Tried factory reset, but same issue.

I have used FlashTool, probably 10 times following the guide to the letter and no luck.

I then tried using LGUP refurbish with the same TOT and same issue with reboot loop.

Tried multiple USB cables and multiple computers. Also downloaded the TOT file several times and from different sources.

Anyone have any ideas how to fix?
[G3 General] hyelton:
What was the reason for needing to flash it?

Also flashtool was almost ALWAYS fail it's normal. It's actually flashing the firmware correctly anything after 80% the flash is actually complete. Have you tried using the board_dl option In flashtool?
[G3 General] bigzdog:
Reason for flash is was friend's phone who gave to me and I wasn't sure the history of phone. It was on stock but rooted and was functioning before flashtool, that I know. I just wanted to put back to known good stock.

Tried board dl option and same result. LG logo for several seconds then reboot.
[G3 General] hyelton:
Usually reboots like that are battery issues which is common with the g3
[G3 General] bigzdog:
I actually read something about that and tried plugging into 1.8amp wall charger, but still reboots. Would that rule out battery?
[G3 General] hyelton:
No clue about having a wall charger. But a battery can cause strange problems. And usually if a battery is bad it may work on an older firmware but on a newer one. The firmware you flashed newer than the rooted firmware?
[G3 General] bigzdog:
No firmware I flashed would be older than rooted. The only TOT I could find was v10d which is 4.4.2? Rooted was lollipop

Is there any other method to try to flash back to stock?
[G3 General] hyelton:
Ohh okay. These are the only methods for that model. It's not a D850PR is it? It's for sure an AT&T D850 correct?
[G3 General] bigzdog:
Yes ATT D850
[G3 General] hyelton:
I haven't any other idea other than battery or manually flash via fastboot which I've never had to do before, but maybe another guide in the general section for that.

How long does it take to flash before getting to 80%? Post a screenshot when it's at 70%
[G3 General] bigzdog:
From READY, when I unplug and replug, it sits on waiting for connection for several minutes. Probably about 5 minutes. Then when it actually starts flashing it takes about 100 seconds to get to 80%. I can get a screenshot tomorrow.
[G3 General] hyelton:
It should only sit on waiting for connection for a few seconds. You unplug and replugged the phone and it will start flashing. Reason I ask as it may be skipping partitions.

You are using a USB 2.0 port right? USB 3.0 won't work and will cause all sorts of problems.
[G3 General] bigzdog:
Yes usb2. I noticed it takes a very long time on waiting for connection. I previously had a G2 and used this tool and it was much faster, I just assumed it was something different with this phone.
[G3 General] hyelton:
Yeah when it's stuck on waiting for connection just unplug and replug. It's common. Same for the G2 I just flashed back to stock to sell.
[G3 General] alliance1975:
Mr. Hyelton,

I recently purchased an unlocked AT&T branded lg g3 d850 with the MM stock firmware. No root nor TWRP. Followed your LGUP procedure and downgraded to KK without problem. Proceeded to root, install TWRP and flashed a nougat rom. All worked perfectly except for the cell phone reception. I had to go to a downtown urban are to even make a call. Otherwise I was at -120dbm almost constantly. I’d see 2-3 bars, I’d call voicemail and the bars would disappear and get a no network error. I’m using AT&T sim on AT&T network here in Florida. I tried all three modems from here:

https://drive.google.com/drive/folders/0B2MvabHC5i11VXUxbXFzWmFIczg

and no improvement. I even changed out the antenna and still no improvement. The same sim card in a similar T-mobile phone gets far better reception. Do you have any idea what the problem could be with the AT&T phone?
[G3 General] hyelton:
Running any non stock rom on a G Pro,G2 , and G3 I have always experienced this. Works fine in bigger areas but in lower signal areas I always noticed problems.
[G3 General] alliance1975:
Thank you for your reply. It appears going back to stock may be the only means to improve signal.
[G3 General] hyelton:
Yeah that's the only resolution I've ever had over the years.
[G3 General] gabrielsond:
Cannot downgrade F400S with TOT or KDZ method. Stuck in boot loop. Please help!

I decided to take my old F400S and downgrade it from 6.0 to stock. I've done this several times in the past without problems but now I'm stuck.

I tried the TOT method and it failed with the CrossDL error.

I tried the KDZ method also and it failed after 4%.

I was able to get back into the phone and I noticed a new upgrade and tried to do that and it failed too.

I put the phone back into download mode and tried the TOT method again and this is what I get:

image at i.imgur.com/9UGQFXz.jpg

I can't get out of the boot loop. I've tried to do a master reset and I can't get to the menu.

I don't have a sim card in the phone but I thought it shouldn't matter. I'm not sure why PID and IMEI are null.

Any ideas?
[G3 General] hyelton:
Cross DLL errors normally occur when your device is running a custom firmware based on a different model. Or your attempting to flash wrong model firmware.

Also what do you mean kdz method? You mean LGUP? LGFlashtools doesn't work if the phone is running MM 6.0. You have to use LGUP if the phone is running MM.

And your using a USB 2.0 port right? Just making sure as that makes a difference.
[G3 General] gabrielsond:
I upgrade to stock 6.0 through LG PC Suite

I'm using the f400s.dll and LGF400SAT-00-V10e-SKT-KR-JUN-07-2014+0.tot which I've used before

I tried both LGFlashTool and LG Flash Tool 2014.

I tried LGUP and it says unknown model.

Yes, I'm on USB 2.0. Although I started on 3.0, not sure when I switched.

Ugh, sounds like I made a few mistakes.
[G3 General] hyelton:
You will only be able to use the tot method and LGUP. The flash tool kdz method will not work at all with MM. You'll need to get past unknown model in LGUP, which the easy way is to boot the phone into android. But seems like you cannot anymore. Where did you download LGUP from? You need to make sure you have the correct dll installer for LGUP to detect the device.

Also try the LGUP_.dll file (it has 4 numbers at the end) can't put my mind on the exact file name. Use that instead of the F400 dll file with the tot method.
[G3 General] gabrielsond:
LGUP_8974_DLL_Ver_0_5.msi had the dll I needed for LGUP to identify it.

Thanks a ton!!!
[G3 General] hyelton:
It worked?

And your very welcome !
[G3 General] gabrielsond:
Worked perfectly! Thanks again.
[G3 General] bluelines115:
it says com 41 is in use- can anyone help with this? i've used this guide already to restore back to stock but now i need to do it again as i stupidly wiped my whole system partition on accident. is there a way to reset it or use a different com port?

i cant find a kdz file for my g3 (sprint ls990) so it looks like im stuck with using the tot method
[G3 General] hyelton:
When it says it's in use it will let you choose it anyway if you select it.. and yes the Sprint model is tot method only.
[G3 General] bluelines115:
i did try to use it anyway already, but it kept stopping at 14% at system on the lg tool. should i just leave it be while it's there?
[G3 General] hyelton:
In use means nothing then if it's actually detecting the phone and the port is actually set to the device.

Depends on how long. If longer than 5 min then no. Tried using LGUP? If it was running MM LGUp should be used.

Your using USB 2.0 right? USB 3.0 won't work.
[G3 General] bluelines115:
yes im using 2.0 and it wasnt running mm it was on kk
[G3 General] hyelton:
Is the tot file your trying to flash older than the software it's currently running? That could be the issue, when it comes to Sprint models anyway.
[G3 General] bluelines115:
its the .tot i originally used to flash to stock from lollipop. i then installed cloudy g3 which had issues, so i restored back to kk. i then was about to install a new rom but accidentally wiped my system partition so i currently have no os. on the twrp site it said a flash back to stock would be a viable option so i decided to try that again.
[G3 General] l1nuxguy:
To save people a little trouble later on, yes, this is more or less written up elsewhere and doesn't *seem* to work (with the files linked elsewhere), the files *here* and process listed *here* does indeed work.
[G3 General] alliance1975:
D850 phone reception problems.

Just to let you know, per your suggestion I downgraded the D850 to KK, then did OTA updates to LL then MM and the phone reception improved dramatically. I suspect it is the baseband in the MM that does it. Fortunately I also have a D851, (T-Mobile brand), that I managed to root & TWRP via:

https://xdaforums.com/tmobile-lg-g3/development/stock-d851-30e-kdz-flashable-zips-t3478560

I'll keep it on stock MM for now as I can add remove apps and get great phone reception. Many of the sites I went to gave thanks to the name hyelton.
[G3 General] G3rizwan:
overheating and no display after fall

Dear all,

please help, i was having flicketing and fading problem which was solved and my lg g3 d855 was working fine but 2 days back my mobile got slipped from my hand and fell on hard floor facing the screen, now its not getting ON and overheating, kindly help me with your best advise..... please help, awaiting for your response ASAP. thank you so much.

rizwan
[G3 General] hyelton:
You would need to either replace your screen, motherboard, or phone.
[G3 General] sfh23:
Hello,

Does post #3 still work to downgrade from MM to Lollipop or KK? Also it says d855 only but will this method work for d850 model?

Thanks
[G3 General] hyelton:
Yes. And it works with all LG device models
[G3 General] sfh23:
Thank you! Also for rooting do you recommend downgrading to lollipop or KK? also do you have a reliable link that will help me root my d850?

Much appreciated!
[G3 General] hyelton:
Your welcome!

Sorry no clue on root. Only keep up with stock :D here. I haven't rooted a D850 since it first came out.

I'm sure there's root threads in the G3 AT&T section of the forums.
[G3 General] G3rizwan:
Thank you heylton, I am trying for motherboard but its not available in market.
[G3 General] hyelton:
Depending on where you live it may be cheaper to just get a new phone. Here in the Us the G3 can now be gotten for under $100 for a fully working phone.
[G3 General] kennymasters:
hi which one is the kitkat 4.4.2 for g3 sv985?
[G3 General] sfh23:
Hello,

I am trying to downgrade from MM to LL. I have a d850 and in my software version it says i have a d85030p. The KDZ file in post#3 the file name is d850PR20A. Will this kdz file work to downgrade my phone? Thanks!
[G3 General] itsmepedro:
Using the TOT method, after it shows "Ready!!", nothing happens. I tried to unplug and plug the cable again, but it only shows "Waiting for connection", nothing more. Any help?

Thanks!
[G3 General] hyelton:
You changed your com port in device manager to com41 right? And using a USB 2.0 port? USB 3 won't work.
[G3 General] SupersonicSquirrel:
LG Flash Tool doesn't see phone

Just for future problem solving

I ran the FlashTool but with no success . Make sure to have the drivers installed, change COM port like HERE and connect Your phone to a USB2.0 port instead of 3.0. That helped for me
[G3 General] hyelton:
Yeah that's in the guide and I've posted it most likely a billion times here :D and somehow still goes missed at times.
[G3 General] laset111:
I have stupid question but i cant found answer, what is the password for tot rom which you give link on page 73?

I cant paste the link becouse i create account in this moment and i have blocade.
[G3 General] hyelton:
There's no link posted by me on page 73. Also none of my links have a password.

What tot are you looking for? All of my tot files are on my storagecow links in the guide.
[G3 General] laset111:
I have rom from oceanhost.eu from your link from page 73 (its 724 post in this topic, you posted his in

21st December 2014, 10:40 PM), its LG D855AT EUR V10l tot file in zip, i searching exactly this version v10l.

---------- Post added at 09:37 PM ---------- Previous post was at 08:58 PM ----------

Maybe have you anywhere that file? its the only source on the internet, where i can get it.
[G3 General] hyelton:
If it has a password then it was from the file where I got it from long ago. look at the file name it may have it in it. But sorry I don't have any passwords as I never add them.

If I have the file it will be on my storagecow links. But to find a exact version like 10l you'll be better off finding a kdz and not a tot.
[G3 General] Bruce Fraser:
The LG UP method worked perfectly on my Canadian D852. Neither of the other two methods -- KDZ or TOT -- were successful; both ended with various error messages.
[G3 General] hyelton:
Glad it worked for you :) remember if you where running MM 6.0 you must use LGUP. Remember LGUP flashes both KDZ and TOT files. I think you meant lg flashtools didn't work. Kdz and tot files are the only firmware files you can flash.
[G3 General] JMourao:
hum ok so in my case its not recognizing the phone.

I have installed everything and i watched the video, the phone is connected to a usb 2.0 port, with CM14.1 and the phone simply not recognize even after rebooting while connected to the pc. Which step am i missing?
[G3 General] hyelton:
It's in download mode right?

Also CM causes problems with flash tool and LGUP like what your having. If you can flash a stock based rom based on your model. Then attempt to flash.
[G3 General] JMourao:
Yup it was in download mode, i was in CM 14.1 twrp 3.1.0(2) and i was not managing to find the phone by any means, i ended up solving the situation using method #1 and now back to stock :) thank you
[G3 General] Bruce Fraser:
No, I meant what I said.

The original post in this thread specifically talks about "KDZ method" and "TOT method." I followed the instructions exactly, and the result was nothing.

Taking a chance, I tried the "LG UP method", even though it warns "Currently only for the D855." When it worked perfectly well on my D852, I thought that was worth reporting. So I did.
[G3 General] hyelton:
Your post made it sound like neither a tot or kdz worked. But you use those with LGUP as well.

LGUP works with all models. (I really need to remove that)

But also as I stated if you where running MM 6.0 you HAVE to use LGUP the other two methods won't work.
[G3 General] donbro74:
Worked like a charm - D850

Awesome job on this! Recently received D850 with MM D85030P. Followed instructions to downgrade back to KK using LGUP and TOT file, and 6 minutes later I was rooted and back in business.

Thank you to OP for putting this out there.