yashsingh1/xdaforums huggingface dataset:
[G3 General] youssefkr:
thanks for the reply, I do know how to access download mode. But like I said when I try t boot into it, I get a message on the top left corner saying "secure booting error".
[G3 General] pfcland:
Hold volumeup+power button till you see lg logo let go and hold the same buttons again fast and you should enter download mode
[G3 General] youssefkr:
I can boot into download mode, but as soon as it boots i get "secure booting error".

I'm very familiar with flashing, please before replying read my problem.

Thanks though.
[G3 General] jonny129:
Any Ideas?

I tried:

-kdz flash with LG Flash Tool 2014

-TOT flash with LGUP

-different cables and usb ports

- I just can access download mode, nothing else, but the my tries to flash just fail around 10%
[G3 General] hyelton:
Did you try flashing a stock based rom based on your model in twrp first?
[G3 General] jonny129:
No, I didnt...But as you wrote it last time it was already to late :( Is there any way to rescue it?
[G3 General] hyelton:
[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ &amp;amp; TOT Method With LGUP

If twrp is gone no. But you'll have to keep trying to get LGUP working

Also when your phone is plugged in make sure t doesn't show up as a bunch of drives under computer
[G3 General] jonny129:
hm ok...

-My LG is shown as "LGE Mobile USB Serial Port", which should be correct?

-I tried LGUP yesterday, but it stops with the error "laf_packet_error". What does it mean and how can i solve this error?

thanks in advance ;)
[G3 General] hyelton:
Yeah, but what about in my Computer do you see several blank drives when the phone is connected?

Your very welcome :)/
[G3 General] jonny129:
No, i just see it in my Device Manager.
[G3 General] ksnewland:
I correctly have VS985 10B installed via this method, but my phone is still bootlooping (restarts itself shortly after startup logo).

I have tried to re-flash 10B several times and bootloop is not going away.

is there some other method to reset even harder?
[G3 General] hyelton:
If your using cse flash or refurbish in LGUP there's nothing else you can use. Why not flashing something newer than 10b? That's very old. Does it boot up to the OS then reboot? Or just reboot on lg logo?

Also this is a common issue with a bad battery.
[G3 General] ksnewland:
Happens with 2 different batteries. doing 10B just to start from scratch. I can try flashing a newer rom from 10 and see if it works I suppose.

Using LG FlashTool. Was trying to fix many issues with my phone (wifi broken, SD card mounting issues, etc.) and flashing seemed to fix temporarily but issues would come back, and no custom ROMs would work properly.

Looking for the hardest reset possible. Is LG flash tool with .TOT 10B file the hardest? trying refurbish lgup too
[G3 General] hyelton:
There's no "hardest reset" flashing a stock firmware is as far as it gets.. if you where having wifi issues that's a common problem with the G3 and is a non fixable hardware issue. Your going to have better flashing flashing later firmware. Using older firmware will make problems worse
[G3 General] ksnewland:
Gotcha. Thanks. Tried upgrading LGGUP 10B -> 24B, bootloop is the same.

I have a second LG G3 which now has SIM card issue on custom rom 6.0. Should I downgrade all the way back to 10B, or something intermediate? I would like to clean flash a different 6.0 ROM.
[G3 General] hyelton:
Your best bet is to flash a stock based on your mode firmware via recovery first.
[G3 General] NIGHTMARE-:
Hi Hyelton,

I'm getting this error when I try to delete anything from my OTG device. The cut,copy and paste is working fine. Previously it was working fine.
[G3 General] hyelton:
What happens when you try another phone ? Does it work fine? I don't really use OTG much.
[G3 General] NIGHTMARE-:
No I didn't try in other phone but in pc its working fine. I think because permission something got changed.
[G3 General] dynamoman:
hello, Im Lg g3 user, first I want to ask, now Im using custom rom, how to flash to stock rom? Im afraid of going bootloop . thank you :)
[G3 General] hyelton:
You follow the guide in the OP
[G3 General] dynamoman:
what the easiest method should I follow? KDZ, tot?
[G3 General] hyelton:
That would determine your model, what's your model?
[G3 General] dynamoman:
g3, 3/32, d855 ..
[G3 General] hyelton:
Then it would decide whichever you wanted but since the D855 kdz method is the best. If your running MM make sure you use LGUP
[G3 General] Bertzy:
Can somebody tell me what global marshmallow firmware stock version V30n should I use for the LG-D855 32GB version?Link please?
[G3 General] dynamoman:
now Im using custom rom (base on MM) ..

so I had to use LGUP ? what a difference a LGUP and flash tools in 2014?

thank you for ur answer:)
[G3 General] hyelton:
Difference is if your using MM you use LGUP. And LGUP flashes both kdz and tot files. Before you flash make sure your flash a stock based rom based on your model
[G3 General] hyelton:
Just what is based on your model. All links are in the OP
[G3 General] dynamoman:
so I must using LGUP for flashing stock rom to my phone? okey, I will try later :)
[G3 General] RDDraco:
I have a small question,

I am trying to flash MM on my sister's phone she currently is on LP but I was wondering which version Europe or Global do I need to have? she has a D855 2GB/16GB
[G3 General] Jim_K:
Works for VS985, downgrade from MM 6.0 to LP 4.2.2

I'm not sure if this is mentioned in any other threads on XDA, but I just did LGUP to roll a Verizon VS985 back from 6.0 MM to 4.2.2. Just follow the directions only I slected the TOT, not sure if it works on the KDZ or not, didn't try it. Thanks everyone, off to root and rom!
[G3 General] emretutsak:
I have d855 32gb with sw v30c-hkg-xx can i "refurbish" it to MM Global v30b (d85530b_00_1217.kdz) with LGUP?

Will it work on my phone?

I want to root, but kingroot doesnt support the current sw

(sorry for bad english)
[G3 General] dynamoman:
so what you had to reinstall? What worked?
[G3 General] tute123456:
[MENTION=2607037]hyelton[/MENTION] thx for the tutorial!!! LGUP works fine in windows 10 x64?? or is recommendable win 7?
[G3 General] bender_007:
Works on win7/8/10 etc, np
[G3 General] emretutsak:
I want to install the global v30b with lgup, but i dont know will my phone support it. Now i'm using original version of 30c. I had never installed stock version except 30c before. (sorry again i cant speak english well)
[G3 General] tute123456:
thx!!! and Lg flash tools 2014, works in windows 10 x64?
[G3 General] bender_007:
It does but not for MM
[G3 General] fufsaih:
Model Information Check error

For the tot method

I have a d850 and i recently flashed the stock rom and updated my phone to Marsh Mellow. Now I want to flash the KitKat version once again but after the ready message the lg flash tool says download fail and model information check error. Please tell me how to fix this problem. I can still boot to MM but I want to downgrade to kitkat for the benefits of rooting and TWRP.
[G3 General] tute123456:
lg flash tools it works for mm, i used
[G3 General] bender_007:
2014 I mean :)
[G3 General] hyelton:
LG flashtools does NOT work if the device is running Stock MM 6.0. Only LGUP.
[G3 General] hyelton:
That's because you have to use LGUP.
[G3 General] Aid777:
I am running Fulmics ROM ver 6.5 (V30N). I want to go back to stock and have downloaded the correct file for D855 UK model (international). Should I use the LGUP (post 3) guide to do that?

I have watched the video and presumably I would need to ensure I did the "Refurbish". It won't wipe the external memory card will it?
[G3 General] hyelton:
Since your running a custom rom its best to flash a stock based (non customized rom) first for your mode then flash it back to stock. And yes you would use LGUP and referbish.

It wipes internal storage but not external. But always remove it just in case.
[G3 General] Aid777:
Sorry I did not understand, flash stock rom (I will use D85530B_Europe.kdz) first, then flash it back to stock. If I flash the file once, then it has just been "flashed back". Thank you for your post, but you seem to state flash twice? I am sure that's not what you mean, I am probably just misunderstanding you. This is where I got my file, via the link on the first page of this post http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/Marshmallow+6.0/
[G3 General] hyelton:
Flashing back to stock while running a customized rom can cause issues.

What I mean is find a stock based non customized twrp flashable rom first.
[G3 General] Aid777:
Got it! I understand you now. Cheers
[G3 General] RDDraco:
I am having an issue I am currently running FulmicsRom 6.5 on the LG G3 D855 2GB/16GB from my sister. Tried to flash systemless Su with flashify but now I am getting boot recovery error on booting. Cannot enter recovery or boot into the rom itself. Only download mode available.

I cannot use LGUP to reflash stock firmware because of the fact that it doesn't recognize the model I am using from download mode. So can only use LG Flash Tool 2014 with kdz files. But which one do I need to use Europe or Global?

If their is anyway to flash bump'd twrp from download mode it would be great as well.
[G3 General] hyelton:
Depending on what Fulmics is based on etc you may only be stuck with LGUP. Remember any fully based MM 6.0 firmware/rom requires LGUP. 2014 flashtool won't work depending on what the rom is based on.

You'd use whichever you'd like to use as long as it matches model
[G3 General] surge919:
I'm trying to revert back to stock and then get up to the latest with the OTA.

I borrowed an ATT sim card and was able to get OTAs for my LG G2 (d800) so the sim card is valid.

I'm not getting the OTA for my LG G3 (d850)

I was able to flash back to stock but didn't get the OTA so I tried to flash it again.

Since I have a d850 I'm using Method #2 and I read that I need to select "Board DL" which I did.

Now I'm having issue where the FlashTool is not finding the phone. The first time I flashed it, I was getting this error and after restarting the FlashTool.. rebooting the phone, etc.. it eventually worked. This time around, I've tried the same thing several times but am not having any luck. I also tried on another laptop but it's a no go.

Any ideas?

thx
[G3 General] hyelton:
Make sure you've reset the com port to com41 again if using a different USB port the comport will change. And make sure your using only USB 2.0 and USB 3.0 won't work.

So your trying to flash back to stock again for ota update? There's no reason to do that if it's already stock. If the update won't come in you need to perform a factory reset and try again until it takes.
[G3 General] surge919:
The port shows as 41 in device manager and I am using USB 2.0.

I left out that I rooted it to try to manually update it but then decided to stay with pure stock.
[G3 General] hyelton:
Ahh okay. Rebooted the computer correct? And freshly put the phone into download mode?
[G3 General] RDDraco:
Well it's based on MM 6.0 so guess I am stuck with LGUP? But how can I make LGUP recognize the model while in download mode? Or is their any other way to flash .kdz or .tot files?

http://xdaforums.com/lg-g3/development/rom-fulmics-rom-3-0-tweaks-hub-ota-v30b-t3304556
[G3 General] hyelton:
Best way is to try flashtools first it won't hurt. And no flashtools and LGUP are the only two methods.
[G3 General] Aid777:
I have TWRP flashed this stock rom here http://xdaforums.com/lg-g3/development/stock-d855-30b-images-kdz-flashables-t3282012 and all seems fine except i don't have root. I can use kingroot to sort that. Is there any need to flash this stock firmware?
[G3 General] hyelton:
I'm confused. You don't need to root to flash back to stock. You just needed to flash a stock based custom rom first via twrp if running a customized rom so that nothing would interfere with flashing back to factory stock.
[G3 General] RDDraco:
Thanks it appears to be working again. Guess I will let it stay stock for a while and see if my sister still has issues afterwards.

Few things I noticed during the flash with Flash Tools 2014 is that it displays mainly ? ????? in the lg tool and that it crashes at the end. This is because the phone was at 100% and rebooting while the tool itself was at 84% and crashed at 99% <.<
[G3 General] hyelton:
That's great!

Yeah that's. Normal. Anything after 80% flashing is done. Any errors or crashing after that won't affect anything as flashing is already done.
[G3 General] surge919:
yep.. rebooted laptop.

started up FlashTool... selected dll and tot... hit yellow arrow

started in "download mode".. hearded plugged in sound.. confirmed Device Manager shows port is 41.. btw: driver shows 3.13.0.0

FlashTool shows "Waiting for Connection" and stays there

If I move to another USB port or simply unplug it, sometimes it changes to the "Download FAIL!!" screen with "Model Information Check Fail!"

Restarting in Download Mode doesn't change anything.

I also tried setting the date to before July 2012 and disconnecting from the internet as suggested earlier in this thread.
[G3 General] hyelton:
Remember if you move it to another USB port you need to go back and recharnge your com port in device manager..

When you click the yellow arrow are you unplugging it and replugging it back into the SAME USB port?

Also model info check failed usually happens with bad USB cables or using USB 3.0

You don't need to change the date. That's not been needed for several years.
[G3 General] surge919:
Doing the same thing over and over.. this time, it started doing something and stopped at

USB Connection Established

Change to DL Mode

Can't change to download mode
[G3 General] hyelton:
So you are sure your using USB 2.0? Can't change to download mode is a error that only normally comes up when using USB 3.0. Along with not freshly booted into download mode
[G3 General] surge919:
I did the same thing I've been doing all along.

I started up the process the way I had before.. let it sit for a few minutes and this time it actually worked.

Now do you have any tips to getting the OTA to actually give me something?

I hit update and it find nothing. hit it again and it says to wait 24 hours so I set the clock ahead and try again but no joy.

thanks for taking the time to reply to my cries for help!
[G3 General] hyelton:
Very strange. With the OTA update it can take several tries sometimes with AT&T devices. It may be one of those things you may have to call AT&T for that line and give them the IMEI before it will update.

Usually changing the date and time and factory resets will eventually work.
[G3 General] dynamoman:
hello,

I had a problem like you, first I also use fulmics rom, and secondly I think the custom rom is not good enough for daily use, so I think it will be returned to stock.

I want to ask, how the first step to go back to stock? can you give me a hint? I'm just afraid of going bootloop, thanks man.
[G3 General] tryman87:
Hi guys i used the tot method and this shows up. Any idea? I can only access the download mode.
[G3 General] hyelton:
Why did you post in 2 different phone threads? Are you getting this issue with both the G2 and G3??
[G3 General] cultofluna:
I'm a little bit confused......

I read in the OP that if you want to downgrade or upgrade to or from MM you have to use lg up...

But 2 days ago I've made an upgrade to MM with lg flash tool 2014 and kdz on my girlfriend's g3.....

Am i missing something?.......
[G3 General] hyelton:
You can flash MM firmware via 2014 flashtool if you where on KitKat or lollipop. But if you where on MM you have to use LGUP.
[G3 General] Aid777:
I just wanted to go back to stock and then re-root because I just want my phone rooted. I was going to flash using LGUP, then re-root, however I instead used TWRP to flash stock rom as you suggested. So my question was should I now flash 'your' stock rom or are both roms (this one and the one I flashed) basically the same?
[G3 General] tryman87:
The issue was with the G3, the post on G2 thread was a mistake. The phone is in DL mode and was connected via usb 3.0.
[G3 General] cultofluna:
Personally was on stock v30n MM and i flashed v30b with lg flash tool to obtain root...

so I still don't get it...but anyway.....
[G3 General] surge919:
Not having any luck with the OTA.

Is the latest flashable TOT for the d850

BIN_LGD850AT-01-V10d-310-410-JUN-19-2014-0.zip or is there a newer TOT?

What is this? D850_20F_Lollipop_Stock.zip
[G3 General] hyelton:
There not the same. As it's. it not officially a stock rom that you flash with twrp. You just flash it to clear build.prop and other things that may cause issues with flashtool or LGUP detecting the device correctly.
[G3 General] hyelton:
That's your issue, you cannot use USB 3.0 you can only use USB 2.0
[G3 General] firedani:
Currently I'm on stock v30n. Which is the best method to upgrade to a custom 6.0 rom? I'm thinking of downgrading to LP and then flash a pre-rooted 6.0 and go from there. (btw which kdz is the LP one?)
[G3 General] Aid777:
Well that did not work. I had root and used the LGUP to flash the stock rom to the phone. I did it all correct it seemed and the phone booted automatically into recovery to install new FW, TWRP started and I did not touch anything on the phone, then the LGUP finished and I clicked on it. The phone is is TWRP boot loop though and there is nothing on the phone! I then attempted to flash the stock ROM I did earlier (not yours, the other one), all seemed fine but there was an message at the end of the flash list that said "Failed to mount '/data' (Invalid argument)" and the same message for cache/

Anyway the phone is still in boot loop. WTF did I do and how can I fix my poor phone?

When the phone is connected to PC only the external SD card is shown. :(

UPDATE, so I tried again and put the phone into download mode and started the process again, COM 3 popped up and I d not believe that happened before. TWRP started again and this time I swiped to allow modifications, the flash finished and I "clicked here to complete", I then exited the LGUP program and attempted to start the phone, but it still did not work
[G3 General] deathsquad737:
What firmware do you have what version???

A.L.B/E.B.B
[G3 General] 1toadfacedfrump:
Thank you. I have an AT&T LG-D850 running Android 4.4.2, build number KVT49L.D8501d. I am downloading from the OP's files BIN_LGD850AT-01-V10d-310-410-JUN-19-2014-0 for my phone under the first KDZ section. Thank you again.
[G3 General] aelole:
Hi i want to flash a bumped rom.if in the future decide to return to stock rom i will be able to use this guide?or make a backup of stock rom with twrp recovery?
[G3 General] deathsquad737:
Yes

A.L.B/E.B.B
[G3 General] valamihir:
Help!!

hi, ive got d855 v10g-hkg-xx and everytime i try to install a new rom from another country, the process is complete but the software remains the same afer the process, is there any way i can install a different regions rom?
[G3 General] hyelton:
Are you performing factory resets??
[G3 General] valamihir:
well kind of, im trying to change the software version from hong kong to europe using the kdz method but everytime i do it, its still the same software :(
[G3 General] hyelton:
Im meaning going into settings and performing a reset which is recommended after flashing. Depending on what your flashing there's not much difference if any between firmwares..
[G3 General] valamihir:
698

am i supposed to do a factory reset after flashing?
[G3 General] hyelton:
Yes.
[G3 General] valamihir:
I did factory reset but its still the same hong kong software, sorry if im confusing you but basically, Im trying to change the hong kong firmware on my phone to european firmware so that i can get 4g compatibility. But everytime I do the kdz process, the phone just retains the same hong kong firmware and its really annoying :(
[G3 General] hyelton:
Try and reset but when phone reboots put it in download mode then flash before it boots up. Also flashing won't give you 4G bands if its not included with your model.
[G3 General] valamihir:
well see thats the issue, the phone does support the frequency my network requires but for some reason I cant get 4g up on my phone, ive tried the hidden menu thing and selecting lte/wcdma/gsm but it still wont work, the phone is genuine but it just wouldnt connect to 4g, ive read somewhere on forums that people have had success in getting 4g after updating their firmwares but for me, my firmware doesnt want to leave my phone, ha :/
[G3 General] hyelton:
One thing though if the phone supports the bands then the hidden menu should work I've used that mutipul times when I owned the phone, if it doesn't support the bands then make sure your using the correct APN for LTE.
[G3 General] valamihir:
well, everything is correct as far as my knowledge tells me, my sim is 4g activated, the apn settings are right and the hidden menu is turned on and the phone supports the required band which is 800, i dont know what else is wrong to be completely honest apart from the fact that i shouldve bought the phone from uK instead of ordering it all the way from hong kong
[G3 General] hyelton:
Have you tried setting it to LTE only?
[G3 General] valamihir:
yes, it wouldnt connect
[G3 General] hyelton:
That's really odd, as it should work as long as the signal is there and connectable. Try and do a factory reset and right as it reboots put it into download mode then flash a firmware. Not sure why its not sticking
[G3 General] valamihir:
im doing that right now, ill update you in about 10 minutes, thank you for your help :)
[G3 General] hyelton:
I hope it'll work. Not really sure why it shouldn't work though never had that sort of an issue.

If your in the UK should be what about 9:30? :). Its 4:30 here, about time for some rest haha.
[G3 General] hyelton:
[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ &amp;amp; TOT Method With LGUP

I'm slightly confused.. are you placing the phone into download mode?? LGUP has nothing to do with TWRP. The phone doesn't boot into recovery to flash stock firmware. It flashes stock firmware in download mode only. It can't flash via recovery. You don't use twrp at all, flashing will actually remove it.
[G3 General] hyelton:
Sorry no clue with it comes to root/custom roms as I only deal with stock with this devices. But 20x firmwares are LP firmwares.
[G3 General] firedani:
Currently I'm flashing v30b coming from v30n and I chose Upgrade. I hope it will work.
[G3 General] Aid777:
Thanks for reply. I defo need help. The phone was rooted as you know and TRWP is installed. Phone was turned on when I used the LGUP program. After maybe 70% or something the phone restarted I guess and went into TWRP, and it said swipe to allow modificatons, but I left it. After LGUP finished I shut down the LGUP prgram and turned the phone on (I expected the phone to reboot automatically) and TWRP started. I am able to get into download mode (power off, plug in USB while holding vol+). I tried the flashing the file "D85530B_Europe.kdz" again, but still in boot loop so don't know why TWRP was not deleted. Trying again now, phone is in download mode manually but LGUP won't initiaise and model is Unknown on COM3. I will have to pull the battery, not sure why LGUP saw phone before, but not now.
[G3 General] hyelton:
NEVER choose upgrade. Always choose referbish. Especially when downgrading.. and it's never even recommended when upgrading firmwares.
[G3 General] hyelton:
[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ &amp;amp; TOT Method With LGUP

Even though it says unknown did you still try and click select and see if it lets you? Select it? Since there's no firmware on the device it's going to show unknown.

You do the flashing process in download mode. That's what caused the previous problem.
[G3 General] Aid777:
Tried again, got into download mode, selected the file, exited the program, started up again, it was in refurbish mode. TWRP is still there though. Is TWRP even supposed to start during the process (it only took a couple of seconds to display 100% on the phone, and a little while longer to display 100% in LGUP). Maybe i should try a different file? .tot maybe?