yashsingh1/xdaforums huggingface dataset:
[LG V10 General] hyelton:
You flash the device using the guide in the OP..
[LG V10 General] wwazman:
Uquick question.. just obtained a v10 vs990 and have my family mobile sim card and using it decently on family mobile system, with some apn help. The problem is it won't stay on 4g lte even though it sees it and will go to it occasionally .. is it possible for me to flash the T-Mobile rom to this phone or will that brick it?
[LG V10 General] hyelton:
No you can only use the rom/firmware meant for the device. The issue your having most likely is to do with it not 100% supporting all the T-Mobile bands.
[LG V10 General] Tovz:
Hi hyelton

Hello,

May i know if i can use LGUP for me to roll back to MM from Nougat?

Because i want to downgrade. MM is much more ok than the new updated firmware.

Please help.

I'm a newbie here and i really want to root my lg v10 or if i cannot root it at least return it to MM.

I follow your step and instruction but there is an error when my phone already on firmware update screen.

The error pops out with error code and the percentage setup of installing the firmware stuck on 16% .

I repeated it 4 times and try to click ok just see what happened but i think it is not ok to bypass the error. right.

so MY phone has been soft brick. I will try to fix it using LG bridge and run the recovery mode.
[LG V10 General] wwazman:
Pardon me for doubting.... but has anybody TRIED it? What were the results? Did it brick the phone, soft brick it, were they able to reflash the correct rom to their phones? I'm curious. I would like to try it (I have not located the correct roms yet) but am of course hesitant to do so without more information. If it DOES work it would solve my problems I believe. As far as I can tell it keeps wanting to look for the cdma networks first, the gsm/lte as an afterthought.. so if I can change that behavior, so much the better.
[LG V10 General] hyelton:
[Guide] LG V10 Stock Firmware (Go Back to Stock) KDZ &amp; TOT Method

It's been done plenty of times. It applies to pretty much all of the LG devices.

At best case If it doesn't brick it, you'll most likely wind up loosing your EFS which if not backed up (needs root) it will be gone forever I.e. No more cellular service. And or you won't get service at all due to the different modems (they're different on the hardware level)

And if you don't manage to brick it, flashing it back to its original model will be a whole different story and sometimes not even possible.

But flashing a Verizon model with a T-Mobile firmware will 99% result in a brick
[LG V10 General] wwazman:
thank you very much, that is what I needed to know.
[LG V10 General] zyper95:
Since I am familiar flashing stock firmware to LG devices this was the first time it failed on me on my LG V10 F600L. So Itried the LGUP method since I wanted to upgrade to Nougat same issue, it even seni bricked my device where it can only boot to download mode since the flashing of the Nougat firmware failed in the middle part. To resolve my issue since some of the Nougat files already written on the parttion I had to restore it to MM using the F600L20e KDZ using Uppercut. And behold, I was succesful to restore it MM then use again Uppercut to upgrade to Nougat.

Also before doing a downgrade check first your device anti rollback version if you have an ATT or T-mobile. If you see the version show 1 or 2 the firmware should have the same version if not you will definitely brick your phone. But if you are on version 0 then you should be safe.
[LG V10 General] klemen241:
[IMG="i"]http://shrani.si/f/P/108/2dPB2HGp/screenshot2017-08-05-18-.png[/IMG] do I have anti rollback or not?
[LG V10 General] hyelton:
That doesnt show your antirollback status but seeing "EUR" I assume its the international variant. Antirollback usually only applies to US carrier models.
[LG V10 General] zyper95:
For LG V10 to find out the Anti-Rollback dial this *#*#244773825625#*#* then scroll down you should see the version. If it shows version 1 or 2, you need to flash your firmware not lower with either of the two version. If you are on Version 0 then you are good to go. Most of Anti-rollback being implemented are on T-mobile and ATT. I haven't tested the LG Flashtool using TOT since I can't find the TOT file for F600L but with LG Flashtool + KDZ you will get an error "Contact the system administrator error". The only thing that work for me is using Uppercut and LGUP + KDZ file.
[LG V10 General] frantus:
Hi, I have H960a so if I have version 0 I can go back from Nougat to MM without any problem? So I will download the right MM kdz for my version and I will follow the first method on the first page of this thread and it will be ok right? Sorry I never used any of this LGUP thing so I'm kinda noob but I wanna go back to MM I don't like Nougat.

Thank you :)
[LG V10 General] rnovta:
i have check anti rollback in my F600L Nougat with this *#*#244773825625#*#* , and the result is "Non-fusing device" , what does it mean guys?
[LG V10 General] hyelton:
It means antirollback doesn't apply.

It only mostly applies to US carrier models anyway.

But with previous LG models Korean models won't have antirollback but you just can't downgrade past a certain point.
[LG V10 General] zyper95:
This what shows on my V10 F600L version
[LG V10 General] klemen241:
same on mine. This means you can rollback
[LG V10 General] NIGHTMARE-:
Anti rollback version zero means you can go back ?
[LG V10 General] zyper95:
Based on what I have read on other forums yes I can still Rollback.
[LG V10 General] Luis1450:
Help me!

My lg v10 h900 is bricked and I dont have idea what to do to fix it:C:confused:
[LG V10 General] rnovta:
if you already try to downgrade and success, i hope you'll share about that

so curious cause i am using F600L and until right now still hope there is some way to downgrade ,even many expert from this forum tell me that i cannot downgrade to MM anymore

Or i just waiting the new update of Nougat (hopeless :crying:)
[LG V10 General] klemen241:
Yea tutorial on nougat downgrade would be great
[LG V10 General] zyper95:
Based on what I have read you can't downgrade from Nougat to MM if the Anti-roll shows as 1 or 2 unless the firmware you will be flashing will have the same version of Anti-Rollback which I doubt. This are common to devices like LG from ATT and T-Mobile and Samsung devices. They block the downgrade option.

With my experience before I was on MM version F600L20s when I tried to update to Nougat I got an error halfway of the flashing. So my phone was stuck on download mode. I used LGTools 2014 but it always gave an error Contact your Adminsitrator when I try to restore my phone back to MM using F600L20e firmware. By the way I was using LGUP when flashing the Nougat firmware when it got soft brick.

So I look further and found Uppercut, and since it support the V10 chipset I tried to flash the MM firmware since the phone can only boot to download. Crossing my finger and when it is done it shows success and I saw my phone booted and I was back to MM. The I used again Uppercut to flash the Nougat firmware and so far no issues. But will try to do a downgrade if I will have the time and give an update.
[LG V10 General] hyelton:
What do you mean by "bricked" what did you do for it to be in this state?

The term bricked means completely dead and can not be fixed.
[LG V10 General] hyelton:
Back to stock, downgrading, upgrading is the Same guide/tutorial.
[LG V10 General] mmdscorp:
So I can take my LG H901 V10 that is on H90021z firmware and SAFELY downgrade to H90021w firmware?
[LG V10 General] hyelton:
Why are you running H900 firmware on an H901? There's nothing safe when using other firmwares for different models.
[LG V10 General] mmdscorp:
Sorry I typed that wrong. The phone and firmware are both H900, not 901.
[LG V10 General] hyelton:
[Guide] LG V10 Stock Firmware (Go Back to Stock) KDZ &amp; TOT Method

Ahh okay that makes sense now :). Really not sure haven't seen any recent posts lately so it would be a risk. If you do you'd use lgup and usually LGUP will stop you if there's antirollback but still risky.

I don't keep up much with antirollback in firmwares. Hopefully someone that does know will post about it.
[LG V10 General] jetkov:
I just purchased a H901 , and it came with software version H90121j (I think the very last version of MM) and T-Mobile has appeared to have removed fastboot commands as well as implement the anti-rollback feature in it. I've been trying to get this phone rooted by downgrading to any other MM version, but it seems to be impossible with LGUP (anti-rollback error).

Does anyone know of any other way to downgrade? I was wondering if I might be able to use the LG FlashTool method with a TOT. There is one H901 TOT file "TotbypassFRPlgh901.zip" on [MENTION=2607037]hyelton[/MENTION] 's server... with no description. Is it a stock TOT? Would I be able to flash this file with LG FlashTool to downgrade?

Thanks.
[LG V10 General] hyelton:
If there's antirollback there's no around it other than replacing the motherboard that has an older OS on it
[LG V10 General] jetkov:
How can I take a dump of this v20j software? I tried using LGUP Lab but the model version could not be detected for some reason. I had the same DLLs that worked with LGUP for this phone.
[LG V10 General] hyelton:
I'm pretty sure you need root to dump a firmware
[LG V10 General] jetkov:
Oh, that sucks. :(
[LG V10 General] junejo46726:
Can I go back to MM from Nougat

Antiroll back status in MM was 3

Same is 2 in Nougat OS
[LG V10 General] hyelton:
If MM was 3 and Nougat is 2 no you cannot if the number changed.
[LG V10 General] scytalemk:
This is BS post copied from older models of LG. None of these 3 methods work for downgrading V10 from Nougat to MM or from MM to LP. So, do not bother to try it.
[LG V10 General] zyper95:
I agree, this method only works for early LG phones not on V10. When I soft brick my phone while flashing the Nougat firmware it left just to boot to download mode. To rebuild my phone I tried flashing the earlier version of MM using Uppercut and it was able to revive it the using Uppercut again I flashed the Nougat and it was successful though I haven't tried yet to revert back to MM. Once I have the time I will try to downgrade using Uppercut and see what happens.
[LG V10 General] scytalemk:
I didn't try Uppercut because it was recognized as virus from my av program. I didn't have time to dissable etc... I think that uppercut it's just a program to make LGUP work with any phone without looking for special drivers. Anyway, I manege to make LGUP 1.14 to work with my V10, and I can tell you that it's the same as earlier LGUP for V10. Same results, only error was showing on 9% instead of 22%. So I have managed to wake my soft bricked V10 with LG Bridge, but now I'm stuck on stock Nougat, and I can't find root for it.
[LG V10 General] zyper95:
Yup so far no root for V10 Nougat until LG release the key for us to unlock the bootloader so I can uninstall the bloatwares on my device.
[LG V10 General] scytalemk:
Wait. I have stock rom by i have unlocked bootloader. You want to say that i can install TWRP?
[LG V10 General] zyper95:
If you are on LL and with unlock bootloader then yes you can root and install TWRP. There is a thread here for installing TWRP for V10 with unlock bootloader.
[LG V10 General] scytalemk:
No. I'm on stock Nougat.
[LG V10 General] zyper95:
Where both stuck at this point. Mine is the korean version of V10 so no unlockbootloader for me.
[LG V10 General] NIGHTMARE-:
How to check bootloader is unlock or not I have H961 dual sim version
[LG V10 General] scytalemk:
Just boot in to the bootloader and you will see there.
[LG V10 General] NIGHTMARE-:
I tried holding power and volume down still no menu showed up
[LG V10 General] scytalemk:
Try using ADB. Before u use ADB be sure that USB Debugging is checked in Developer options.

The command is: adb reboot bootloader

Anyway, if bootloader is unlocked your phone should show you some kind of warning on first screen when you power on your phone.
[LG V10 General] rnovta:
[Question] guys is there any way to flash using dz files? Usually i am using uppercut to open LG up , but i cannot choose dz files from there.
[LG V10 General] hich9090:
Hi my lg v10 stuck in reload mode when it start stop in lock screen and reload after 3 or 4 reloads it stuck in first screen of LG symbol

its lg h901 nougat

please i need help what can i do
[LG V10 General] hyelton:
Reload mode? What's that?

If your meaning it's stuck in bootloop if your device is running stock firmware already and your not running a custom rom and have already tried a factory reset that is a hardware issue.
[LG V10 General] hich9090:
it start normally until the lock screen freeze and reboot automatically 3 to 4 times and then freeze in the lg first screen lg symbol

i made factory reset and it steal rebooting and then green screen :

--------------------------

unknown reset

-------------------------

demigod crash handler : unknown reset

if you want to get ram dump, please do following action

1) please connect usb

2) get the ram dump image using qpst configuration

TZ_UNKNOWN_RESET
[LG V10 General] hyelton:
If your not rooted or never messed with the rom. That's hardware failure.
[LG V10 General] hich9090:
and what i do now?

it consume the battery even when it's shutdown
[LG V10 General] hyelton:
If it's hardware issue. It's motherboard replacement or warranty.
[LG V10 General] Ghanaboy:
Am getting checksum error when using lg up tool
[LG V10 General] masudnishat:
lg v10 H901 T Mobile DLL file

hey i cant find the .dll file in the directory you mentioned above for LG V10 H901 Tmobile, will you please respond back

Thanks a lot

​
[LG V10 General] hyelton:
There's not one. You use LGUP. You don't need a .DLL file.
[LG V10 General] flipinfin:
?

delete

Think its an hardware issue

---------- Post added at 11:29 PM ---------- Previous post was at 11:06 PM ----------

Do you know if this personally works from experience ? Appreciate the write up and everything and your dedication to xda though honestly i dont think you have tried this yourself for the LG V10. Ive noticed in the pic That is a AT&T LG3 model D850 phone so why would you use that pic for a LG V10 Tutorial ? In addition please remove TOT from your description because none of the Downloads you provided are TOT there KDZ for the LG V10 thanks have a wonderful day.
[LG V10 General] hyelton:
The method is the same... G2, G3, G4, G5, V10, v20, and so on.

Yes there are a few tot files in the OP links, more specifically for pre rooted firmware’s. remember not all models will have tot and or kdz files.
[LG V10 General] frantus:
Hi, I tried downgrade my LG V10 H960a from Android 7 to Android 6 using Uppercut. I got error message "Error 0x2000 file does NOT support REFURBISH process" at 4%. My anti-rollback is 0. So I guess there is no way to downgrade to MM from Nougat or I don't know what I'm doing wrong. :confused: Thanks.
[LG V10 General] junejo46726:
[MENTION=2607037]hyelton[/MENTION]

Please link me stock lollipop firmware for LG V10 H961N HKG
[LG V10 General] klemen241:
same here, tried everything. Only thing works is flashing mm or even lolipop from twrp, that downgrade is possible. I dont get it why stuipd lgup wont finish it
[LG V10 General] frantus:
Hi, some guy from uppercut thread give me some advice. I switched from REFUBRISH to UPGRADE. After flash when phone reboot there could be some error messages so do hard reset thru the key combination asap. After that you are succsessfully on MM. ;) (Don't forget to backup if you need)
[LG V10 General] klemen241:
I try that and didt work. I keep getting error 0x2000 when coming to 26% system flash. I can only flash 30 or noughat succesfully. All other all versions get 0x2000 Can you make me MM backup i can flash in twrp?

ps meh i used wrong kdz lol, didnt find right one. But now i cant boot in to system even when format, just bootloops

ps i downgraded even lower version (the one that got error before) and it worked, and it booted. Verye strange lol
[LG V10 General] Romboss413:
Sorry if you answered this already, but will this method work for lg v10 6.0 vs990. My understanding I need to downgrade to lollipop in order to install a rom? By chance would you have a YouTube video, or a simple step by step instructions to complete this task.

Thanks!
[LG V10 General] hyelton:
Downgrading and or upgrading is the same method that’s posted in the OP. But be careful downgrading with US carrier models, due to anti rollback, you can brick the device. It might be best to post or look around the VS990 section on that.
[LG V10 General] Romboss413:
That stinks!! I did brick my g3, but thanks to Laser wolf provided kdz file to downgrade to 10b (kitkat) that unbricked my phone. As you mentioned about bricking the V10, I don't know how to unbrick in case of a problem. At the same time, frustrated with Verizon not sending an ota for v10.

By chance, is there a way to just root the phone? I'm hoping with root access I could utilize all apps for split screen with buildpro .

Thanks!
[LG V10 General] hyelton:
Sorry no clue on root. But “bricking” a g3 is different than bricking a v10. V10 you trip antitollback only Fix is Board replacement.
[LG V10 General] Romboss413:
Wow!! I guess wait for Verizon to send ota for 7.0. I'm a noob trying to be cool rooting and such, lol. Currently I have lineage 14.1 on my g3, do you know of any stable version for 15 for g3 vs985?
[LG V10 General] WeASeL...:
I am unable to find any DLL files for the VS990W (or any other model for that matter).

Can you provide a link for that DLL file please so that I can utilize the LG Flash Tool Method (Since LGUP method doesn't recognize the *.kdz file)
[LG V10 General] hyelton:
You’ll need to use LGUP. LGUP method works with both tot and kdz files.
[LG V10 General] WeASeL...:
Disregard my previous post. Selecting Upgrade enabled LGUP to find the kdz file. After the upgrade completed the file was still present near BIN so I did refurbish next.
[LG V10 General] michael.chaos1:
can u help me? please i know the way i used it ones on a d855 but now i try it on my v10 h960ay and i cant fined the correct drivers when im on download mode (code 10)
[LG V10 General] elbert123:
does flash stock firmware can fix FRP??

I have H90120l software version. Which flash file do i need to use?? please help. thanks
[LG V10 General] hyelton:
Nope there’s a few work around methods for some devices. But flashing stock firmware won’t remove it.
[LG V10 General] orpheus10:
cant find kdz or tot for lgv10 h96220e

uhm do you have kdz or tot for lgv10 h96220e? i cant find it from the given link above. i downloaded kdz for h962 but it is 10b not 20e so i am afraid to flash it fearing it may brick my v10. thank you for the guide, helps a lot. the specified kdz and tot is my remaining problem
[LG V10 General] grzpra:
please helpp!! my v10 after update using your h90120e rom with LGUP and selecting upgrade. now bricked and only showing qdloader 9008 on pc. my board is f600k. my rom before flashing was h90110c which is running normal but now i'm stuck i don't know what to do..... i just buy it yesterday and now it's bricked...
[LG V10 General] samosamike15:
i really need your help

can you help me with my problem? how ami supposed to go back from MM to LP. my problem is software info H900 but hardware info is VS990
[LG V10 General] hyelton:
I’d suggest returning the phone as it seems to be tampered with. But us carrier model you most likely cannot downgrade due to antirollback
[LG V10 General] samosamike15:
thank you for your reply it's a great help. anyway this is just a gift from my friend anyway i still can use it i just cant access finger print and other lockscreen.. GREAT THANKS!
[LG V10 General] hosseinzfff:
Is it possible to go back from Android 7 to 6 then from 6 to 5??
[LG V10 General] hyelton:
That would all depend on your model.... also you don’t have to downgrade in steps.
[LG V10 General] hosseinzfff:
model:

H961N SEA V30B

thank you
[LG V10 General] Bagus hamdi:
Where is Download Both Stock Image File & DLL file lg v10

Hello

where Download Both Stock Image File & DLL file - for lg v10 t mobile
[LG V10 General] hyelton:
There’s links in the guide. You would be using lgup which you don’t need a dll file.
[LG V10 General] dxshah786:
Hello lg flashtool is giving me error "milkyway connection failed"
[LG V10 General] dnonymus:
Question about H901

I regret to say that I regrettably upgraded to 7.0 thinking I could still root 7.0 on my LG V10 H901.

Can I downgrade using LGUP and your tot file?

Is this model allowing firmware and boot loader downgrade?
[LG V10 General] hyelton:
That's the tmobile model so there is probably antirollback which means there's no way. Hopefully someone else can confirm this. As I haven't kept up with the tmobile model. But if there's antirollback only new firmwares can be flashable.

If you attempt to downgrade via lgup it would tell you if there's antirollback and it shouldn't harm the device. But take that as a risk if you do.
[LG V10 General] Warningman:
Hi guys I just had a quick question. I have a LG V10 from Verizon the model number is VS990 and its on Marshmallow VS9902BA I am trying to downgrade to VS99011B. Is this possible? If so what do I need to do exactly. I'm still new to all of this.
[LG V10 General] IamMAC:
Hi,

Is there a solution to the anti-rollback on the T-Mobile variant of the LG V10? I have the phone on 30c firmware and can't find root or any updates for downgrading ?
[LG V10 General] hyelton:
Antirollback is as it sounds. It’s like a hardware fuse. There is not a way around it and never will be.
[LG V10 General] 17mm:
im on 30c version, and i tried to flash 30b with twrp, it stopped at 20% and now its bootlooping to download mode, can i just flash 30c again?
[LG V10 General] NYLimited:
They are compatible so you should certainly be able to flash the 30C kdz.
[LG V10 General] ShaDow18:
I want to change my model from h961n to h901 can it be posible.
[LG V10 General] hyelton:
No. There’s no reason to even do that anyway...
[LG V10 General] mynameisam:
Does it work on lgV10 H901 AT&T one

DOes it work on AT&T​
[LG V10 General] wiytboi:
verizon vs990

im trying to flash a verizon vs990 over to tmobile,, will this get me there to that?​
[LG V10 General] moeduss:
Is it possible to downgrade the v10 for root?
[LG V10 General] hyelton:
That’ll permanently brick you’re device If that’s what your trying to do.

You can’t flash wrong model firmware.
[LG V10 General] hyelton:
What model? If US carrier model most likely not due to antirollback
[LG V10 General] moeduss:
Yes, Verizon
[LG V10 General] melorib:
I use Windows 10, no problem, is your phone conected as a Media Device (MTM), is USB degugging connected :confused:
[LG V10 General] kms108:
I found a bug when you downgrade from MM to LP on the H961N, the softkey on the home touch button section to switch usim card does not work, has anyone experienced this problem, I have tried flashing it a few times with different rom 10B and 10C version, same problem.
[LG V10 General] thebiker:
Have you fleshed the rooted version or the original one?
[LG V10 General] kms108:
stock one from this thread, I never like to root.
[LG V10 General] jakeatul:
KDZ fail. with flash tool 2014

Hi hyelton master

f600k

s[IMG="d"]https://scontent.xx.fbcdn.net/hphotos-xft1/v/t1.0-0/s480x480/12938170_1106410039380063_8038884779838948556_n.jpg?oh=7840c38918a7528801226f52fa274f75&oe=578B0311[/IMG]

tried with KDZ file by flash tool 2014 . but LG mobile suppot tool popped up and says

"connection to server failed , try again in a moment.

Could you please advise me how can i flash f660kwith KDZ file