yashsingh1/xdaforums huggingface dataset:
[LG V20 Guides, News, & Discussion] jorn ariff:
Sorry I'm new here can someone help me detect the root cause of kernel error after boot fastboot.i can't boot to twrp.. Version h990ds sea 10d patch sec. 1 dec 16 .. I follow all the steps .. When to open cmd to fastboot, I press shift left click mouse n run cmd .. N it shows adb only .. Not adb fastboot .. But i still can do the twrp step only after reboot boot i got like grey line .. Then i open battery hard reset still show grey line maybe they call it static screen in here i'm not sure then kernel crash .. This is my third attempt n still fail .. I wish can someone make video tutorial for it because i am so noob here
[LG V20 Guides, News, & Discussion] Moon75:
Try enter download mode and re-do to the flash Twrp step

When you flash twrp two times with 30 sec for each time. After flashed the 2nd time with the 30 sec pull the battery out, unplug phone from PC, put battery back and use hardware combo to enter Twrp. When enter Twrp if it ask password select cancel, you will need to do Wipe > format data

There is link for alternative guide 1-2 page back read it.

If you failed to have Twrp you can go back use Lgup flash the kdz file (with the static screen in download mode) then you can start all over

---------- Post added at 12:52 PM ---------- Previous post was at 12:49 PM ----------

The trick is after second time you flashed Twrp, pull the battery out and enter Twrp use hardware combo, it should work
[LG V20 Guides, News, & Discussion] jorn ariff:
Ok I will try your method & hope I succeed this time .. Thanks for helping me ??
[LG V20 Guides, News, & Discussion] jeanclaudevandamme:
I did not know that... if I did I might not have tried all sorts of weird stuff and ended up bricking mine.

what is the actual static screen mean? how can download mode still work with static screen?
[LG V20 Guides, News, & Discussion] Eanan:
I read on another thread on XDA that rooting the V20 990DS breaks video playback and camera focus? Is this true?

If not, is there any other big issues from rooting? Ive rooted many phones over the years, and this sounds like the first time I can remember that rooting a phone would break something.

PS: This must be up there with the most convoluted methods to root a phone.
[LG V20 Guides, News, & Discussion] Jonous:
Same here, in all my years of rooting phones, this is the first time I'm very very hesitant.
[LG V20 Guides, News, & Discussion] exadeci:
[MENTION=781592]Jonous[/MENTION] [MENTION=5476210]Eanan[/MENTION] If you've been rooting phones for years and you can follow instructions to the letter you'll be just fine.

It's a more complex method than others phones but that's because DirtySanta exploit can't be automated but like I said if you can apply exactly what's written you'll have a rooted V20 in not time.

On the video recording, the reason is [MENTION=6984210]emdroidle[/MENTION] is more nit picky than some other devs (which is a good thing) so he wants to fix it without adding tons of unnecessary code in the kernel but as stated on OP (just above the attachments) [MENTION=4394458]Leicxan[/MENTION] and [MENTION=1657835]jahlex[/MENTION] kernels fix camera issues.
[LG V20 Guides, News, & Discussion] Eanan:
Okay then, I might give it a go then tomorrow.

Hopefully all goes well!
[LG V20 Guides, News, & Discussion] zinou213:
That are good news for emdroidle and laicxan who can now fix their respective kernels with the source codes given by LG, Hope it will the solution.

Thanks for your demand guy
[LG V20 Guides, News, & Discussion] D4rk9009:
Is there any custom roms for h990?
[LG V20 Guides, News, & Discussion] Moon75:
Static screen is some sort of kernel crash I think. I had it and I play around then it enter another black screen told about kernel crashed stuff. Even you factory reset it will still show the static screen I was in this mess once.

For download mode with the static screen you enter by use hardware combo as normal. Then open Lgup to see if it recognize the phone, if yes you can flash the kdz file. Mine was recognized so I could flashed the kdz to return to stock and reroot successfully.

---------- Post added at 05:35 AM ---------- Previous post was at 05:32 AM ----------

I mean when enter download mode with static screen connect phone to the PC by type-C cable and open LGUP to check if it detect the phone. If yes you can flash the kdz file.
[LG V20 Guides, News, & Discussion] sbacham:
Yes..lg up tool detects downloadmode with static screen .I had tried once.
[LG V20 Guides, News, & Discussion] dilaboni:
Not yet:D:D
[LG V20 Guides, News, & Discussion] Eanan:
Do we just install the camera fix kernel zip by flashing through TWRP? Or is there a guide for that?

Thanks, just want to be sure.
[LG V20 Guides, News, & Discussion] prmbasheer:
I have read something on similar lines too. I used to root all my phones earlier. But these days, I have stopped doing it. Android has evolved a lot and hardly requires in my opinion. And as far as LG V20, I not even once found the need to root. It is good as it is. Hardly any bloatware. And I certainly don't want to mess up the Quad DAC and camera software by any means. While writing this, my V20 is downloading a 940mb update.
[LG V20 Guides, News, & Discussion] Eanan:
This is true yes, there are only a couple of apps I use with root that I can think of now such as Greenify, Play Music Explorer and Root Explorer. But they are as you said, not worth it to break something big on the phone.

But then the Xposed for Nougat announcement was made this week, which is something i'd love to have back so i'm debating it still.

Does official Xposed for nougat work on the H990DS, or has anyone tried it?
[LG V20 Guides, News, & Discussion] sbacham:
Ya.I have tried. official xposed is working.
[LG V20 Guides, News, & Discussion] Eanan:
Hmmm I just noticed my phone is on 10e by stock as it arrived, as it was manufactured last month going by the battery sticker that came with the phone.

Will I run into any issues with that, such as driver issue etc. if I downgrade to 10c or 10d?
[LG V20 Guides, News, & Discussion] Moon75:
It's model H990ds? No problem normally but may need to factory reset due to some force close apps. You can always go back to any stock rom by use LGUP to flash the kdz file 10e, 10f, 10g etc.
[LG V20 Guides, News, & Discussion] jeanclaudevandamme:
I guess i'll know next time. I have now started a request process to claim warranty with ebay seller, who presumably will in turn attempt claim their warranty with their supplier.

hopefully my phone is bricked so hard even the technicians would struggle to identify the issue and in turn claim their warranty with LG.

But even if I do not get a replacement, I will pay to have it repaired (i think only hope is new mobo now) or just buy a new one.

An LG V20 is the only phone I'm willing to consider unfortunately because it was once a flagship model with a removable battery. I've used a phone with non-removable battery for the past two years. Never again.
[LG V20 Guides, News, & Discussion] Moon75:
I think the problem you have initially when try to root the v20 some people have same problem mentioned about page 90-100 in this tread, anyway good luck.
[LG V20 Guides, News, & Discussion] babihutan99:
Done !!!! its working on my H990DS patch 10d

i followed @ahlok_hk guide

testing the performance now. is xposed work on this? i need ad blocking and other fun stuff

update : XPOSED WORKS :)

* xposed-v88.1-sdk24-arm64.zip

* de.robv.android.xposed.installer_3.1.2-40.apk

btw, i got red triangle every boot,, @ahlok_hk guide said it will only happen a couple times but mine is always shows. I can boot alright but,,,kinda annoying and cool :p
[LG V20 Guides, News, & Discussion] dilaboni:
https://xdaforums.com/showpost.php?p=74123269&postcount=5071
[LG V20 Guides, News, & Discussion] babihutan99:
it works,, using xposed-v88.1-sdk24-arm64.zip on my device at least
[LG V20 Guides, News, & Discussion] jeanclaudevandamme:
https://xdaforums.com/v20/how-to/bounty-thread-lg-v20-root-h990ds-t3493062/page57

my problem is more like the first post on this page, but that link was found in page 90-100 of this thread. so I am not only one to permanently brick this device in bootloop by making a mistake.

The more I read about this, I think I might just keep stock LG V20 when I get replacement or I buy new one. I won't update to 10g / Nougat, just in case because I read people have trouble rolling back firmware. Truth be told, I actually make very little use of root capabilities. I'm very light user of Titanium / Root Explorer / Adblocking (I blocked every ad except Google ads from host file). Never tried custom ROM / OS / Kernels etc. My biggest motivation for rooting is a way of saying "**** you" to manufacturers locking me out of admin access to a device that I paid for money.

But this is the 4th Android phone I've bought since the last ever Symbian Nokia I bought (N86), it goes Samsung S2, Samsung Note 2, LeTV Max, LG V20.

None of the previous 3 phones have had any trouble rooting and I don't remember reports of things not working after root. It seems a sign of the times that manufacturers are making phones harder to root and trying to kill removable batteries. IT makes me sad :(
[LG V20 Guides, News, & Discussion] storm68:
I agree, I think it's slowly dying out, unless something radical takes place in the rooting community.
[LG V20 Guides, News, & Discussion] dr jakub:
So... After 3,5 months of waiting(thanks to mess in UPS, they can't handle deliver small package from Poland to China) i finally received my repaired V20 after hard brick with unsuccessful root)

All seems to be good except that i had h990ds model, after repair in LG support now i have h990N (Hongkong)

My question is, is there any chance to get back to h990ds?

No matter what kdz i use the model remain h990N and Ota didn't work... I need to check what's more...

Wysłane z mojego LG-H990 przy użyciu Tapatalka
[LG V20 Guides, News, & Discussion] jeanclaudevandamme:
yeah i only visit xda once every 2 years lmao when I get a new phone and try root it. that's why I completely ****ed this root up because it was more complex than the ones I done before and I forgot things like CMD / BAT files / ADB / Fastboot / bootloader etc. I mean, I kind of forget and relearn every 2 years.

my memory is hazy but I don't remember much reports of permanent bricking. I'm a bit surprised I managed to brick mine to this extent (well not technically "hardbricked" but permanent bootloop with every ready solution fail). It would take some one with high technical knowledge now to comb through boot1.img from original dirty santa files which I accidently flashed, alongside aboot.img from h990ds 10d kdz and with good hex editing skills for custom dll to try and get what must be mismatched model information to get download mode working again as it currently has 633A B50 error.

That is beyond me and I think no one would bother with such a specific case of user **** up. So just waiting to see what will happen re:replacement now.

But whatever happens, the V20 is going to be my phone for the next 2 years. I may never buy another Android flagship just on removable batteries alone.
[LG V20 Guides, News, & Discussion] Eanan:
I remember the days of double clicking a bat file in your PC to root the original one plus. Those were the days. I've decided against trying to root the phone as the risk outweighs the reward. As you said, I have little use for root these days.
[LG V20 Guides, News, & Discussion] Moon75:
I think it's just for this Lg model that's need some effort to do it but the guide is there. I have LeEco phones it need little effort to unlock bootloader and root, same to other older Lg phones except some Lg korean models. For v20 rooting may be you gain some performance and some apps need it, tweaks that required root, custom kernels etc. Some of us just love rooting it for some reason ???
[LG V20 Guides, News, & Discussion] Redline:
Because of how the second screen works, you can't set the DPI lower than somewhere around 540 I believe, since the second screen is technically just a widget container, and LG apps have ALWAYS been touchy about changing the DPI, and in most cases they just stop working.

I also wanted a smaller DPI to be able to fit more on my screen, but I decided it wasn't worth only having half a second screen. I just use the no-dpi versions of apps where I can, and I've never had any scaling problems or anything like that. Just something we have to live with I suppose.
[LG V20 Guides, News, & Discussion] jeanclaudevandamme:
How did you get LG to repair it? How much did you have to pay?
[LG V20 Guides, News, & Discussion] dr jakub:
I paid nothing as this was standard guarantee request. Before sending i was able to install us966 rom but it didn't work (obviously). I only know from my seller that LG said it was very simple repair... I wish they could provide normal flash program like Odin for Samsung...

Wysłane z mojego LG-H990 przy użyciu Tapatalka
[LG V20 Guides, News, & Discussion] Hamodi:
Yep twrp is there and works fine .

It just boot stuck on lg boot screen .

When i plug the phone i can here it , and i can here screen bottom pressed .

But the screen still on lg logo
[LG V20 Guides, News, & Discussion] theleftykid:
I just found out my IR blaster is not working? Do you guys have the same problem and is there any fix to it? Ty
[LG V20 Guides, News, & Discussion] stingbandel:
Hi, I would like to ask... can we root using the latest firmware of we have to downgrade first in order to get rooted? thanks
[LG V20 Guides, News, & Discussion] faeterov:
The IR blaster of my H990DS works ok
[LG V20 Guides, News, & Discussion] Jaspreet.master7:
3.Go to Settings -> General -> About phone -> Software info -> Android security patch level; if your phone is on an update after December 31, use LGUP to "refurbish" to an earlier firmware release (this will do a factory reset).

next time read before asking

it was step 3
[LG V20 Guides, News, & Discussion] theleftykid:
Thanks for confirming. I am using Anymote Smartremote since the LG remote app doesn't have the TV and Set top Box model we have. I have the Anymote on my Note 4 installed and it works well. But the app won't work with my H990DS. Or it could be my IR blaster has problem. I haven't tried the remote control feature of this phone before I rooted it.
[LG V20 Guides, News, & Discussion] lucfig:
AnyMote Works for me without root on 990ds.

Only the learning does not work with any app, even with stock LG quick remote.

Enviado de meu LG-H990 usando Tapatalk
[LG V20 Guides, News, & Discussion] Jaspreet.master7:
Try changing the selinux mode to permissive
[LG V20 Guides, News, & Discussion] KOLIOSIS:
Once again,I want to thank you for all of your hard work in getting BL Unlock/Root/TWRP to the H990DS.

Wish I was hanging around to use this phone (now) to its full potential,but,I've put my H990DS up for sale on Swappa.

Couldn't get past downgrading to a vulnerable version,the LG UP program would not "see" my phone.

It's a shame,since the DirtySanta exploit that you've worked on seems pretty straightforward to implement.

I fault LG for this,for not having more models readily unlockable & their finicky "self-service" tools are frustrating to use on a good day.

Best of luck to you on your future projects :good:

Hope to see ya 'round the XDA forums soon (Essential PH-1 or OP5 perhaps)................
[LG V20 Guides, News, & Discussion] lucfig:
Don't we need root for that?

I thought the 990ds didn't have learning capability as the stock app can't learn...

Enviado de meu LG-H990 usando Tapatalk
[LG V20 Guides, News, & Discussion] Jaspreet.master7:
Actually it does have learning capability just select universal remote

And yes you need root for changing selinux status
[LG V20 Guides, News, & Discussion] lucfig:
Mine can't learn. Tested with several remotes and it never worked.

Enviado de meu LG-H990 usando Tapatalk
[LG V20 Guides, News, & Discussion] Jaspreet.master7:
With or without root?

I haven't tested ir blaster with root
[LG V20 Guides, News, & Discussion] lucfig:
Always without root. Haven't tried root yet.

Enviado de meu LG-H990 usando Tapatalk
[LG V20 Guides, News, & Discussion] Jaspreet.master7:
That's odd

Might work with root

Also try changing the selinux status to permissive
[LG V20 Guides, News, & Discussion] lucfig:
Thanks.

Once I have root I will try that.

Enviado de meu LG-H990 usando Tapatalk
[LG V20 Guides, News, & Discussion] Mikesco3:
I finally sat down all excited about being ready to do this and am currently running into an error with LGUP:

Error 0x2000,

H990ds10c_00_OpenSG_D file does NOT support "REFURBISH" process.

My current phone info:

Model: LG-H990ds

Soft ver: V10e-SEA-XX

attempted:

H990ds10c_00_OPEN_SG_DS_OP_1214.kdz

downloaded from: ( https lg-firmwares.com/lg-h990ds-firmwares/#more-3756 )

Also Tried:

Hardware factory reset before LGUP (power up pressing VolUP + Power, release power for about 1/2 sec, and repress power)

Finally Worked by choosing UPGRADE on LGUP....

Hope this helps someone
[LG V20 Guides, News, & Discussion] stingbandel:
ok thanks.... sorry for not reading carefully.

now my next question... would it be possible to unroot once I am successfully root it? my main reason to root it to remove the bloatware. once I remove the bloatware I would like to root it. so would that be possible and then upgrade the firmware to the latest version back? this means without having to clean install everything again?

thanks
[LG V20 Guides, News, & Discussion] -laughingman:
Video recording does not work. It just shows a black screen
[LG V20 Guides, News, & Discussion] FACAF:
LGUP not recognize my phone H990ds. I install drivers but nothing happen
[LG V20 Guides, News, & Discussion] jeanclaudevandamme:
did you buy from ebay seller? and your ebay seller send back to LG?

my ebay seller says they have contacted supplier, I'm not if if they bought from LG direct.

Did yours have the red triangle warning as well? and it went through LG warranty?

yes, rooting my old samsung phones were easy. haven't had samsung since they got rid of removable batteries.
[LG V20 Guides, News, & Discussion] dr jakub:
I bought mine from seller in Poland which is specialized in rare phones, they sent the phone directly to LG support.

I had red triangle which was gone after flash us966 software.

Wysłane z mojego LG-H990 przy użyciu Tapatalka
[LG V20 Guides, News, & Discussion] xoose:
Mine was also a 10e when I bought it. I used it as-is for about a week until I had time to root it, which meant downgrading to 10d. After another week or so I upgraded back up to 10e using kdzwriter which leaves the bootloader and recovery (TWRP) partitions intact so no need to re-root afterwards. The 10f KDZ file for my phone only came out the other day, I'm waiting for it to download as I write this so I can update with kdzwriter in the same way.

No issues with standard operation on 10d or 10e after rooting, other than the camera focus one which is fixed with jahlex's kernel. The only problems I had were installing Magisk 14.2 and getting Xposed v88.1 installed and running properly. I don't think the two problems are related, I had 14.2 Magisk installed at one point but couldn't do it again when I restored from an old backup to try getting Xposed to run properly. I'm currently on 14.0 Magisk and 88.0 Xposed with no problems, Greenify runs great with all Xposed options on.
[LG V20 Guides, News, & Discussion] oliwek:
No. Because you should be aware (vandamme joke [emoji767])

By the way in command line you change directory with 'cd' as flr example with :

cd C : \users\jcvandamme\minimal_adb\

Envoyé de mon LG-H990 en utilisant Tapatalk
[LG V20 Guides, News, & Discussion] AVIMPEG:
I have tried Did not succeed I tried to come back

I can not install with my device lg V20 H990 lg up I always give an unknown model error

Need Help
[LG V20 Guides, News, & Discussion] babihutan99:
Is there anyone have a problem with stock camera lagging results?

I have 990n glibal and successfully root plus xposed.

When i record video using stock camera WITHOUT FILTERS, the video lags. Steady cam is off,, using all resolution options.

I tried rebooting, even try google camera,,still the video result are laggy
[LG V20 Guides, News, & Discussion] Eanan:
Okay cool, have you had any issues since you upgraded to 10f using KDZ?

Also, any issues with battery life or anything with the jahlex kernel? Can you send me the link to that kernel also please, as I cant seem to find it, thank you!

We just flash the kernel zip through twrp right also?
[LG V20 Guides, News, & Discussion] xoose:
No issues so far on 10f, battery seems just as good if not slightly better and I was able to install Magisk 14.3 and Xposed 88.1 without any issues.

The jahlex kernel is linked in the first post of this thread, but here is the direct link anyway - https://xdaforums.com/showpost.php?p=73770419&postcount=648

Yes, just flash kernel through TWRP after doing "kdzwriter -a" on the new KDZ file. I also erased cache/dalvik after doing this, I don't think it's essential but good practice either way since it takes forever on the first boot after system image upgrade either way.
[LG V20 Guides, News, & Discussion] Eanan:
Great, thanks for the information. Just one final thing; what do you mean by after doing "kdzwriter -a"? How do I do this? I didnt see it any guides or maybe missed it, but I searched and didnt find anything either.

Thanks,
[LG V20 Guides, News, & Discussion] xoose:
kdzwriter is an shell app/command that lets you write KDZ files from TWRP. Basically the steps to upgrade your firmware after you have TWRP and root installed are:

1. Download the factory KDZ file applicable to your phone's model/country. I got mine from here - https://lg-firmwares.com/lg-h990ds-firmwares/#firmwaresList

2. Copy KDZ file to your phone's sdcard (I don't think internal or external matters, I used external anyway)

3. Download kdzwriter and copy it to your sdcard as per the XDA thread here - https://lg-firmwares.com/lg-h990ds-firmwares/#firmwaresList

4. Download jahlex kernel (or whatever) and copy it to your sdcard.

5. Reboot to TWRP and extract kdzwriter as per the above thread.

6. Execute the following command (replacing the KDZ filename and path with whatever you downloaded, the "-a" option is to "Write areas known safe to apply to the device. As of right now this is /system, /firmware and /cust." so there is no risk of overwriting your boot or recovery partitions with factory versions needing to root all over again:

kdzwriter -a /external_sd/H990ds10f_00_OPEN_AU_DS_OP_0923.kdz

7. Flash the kernel from TWRP's install menu. Update to Magisk 14.3 at this point if you haven't already done so (it only came out a few days ago).

8. Reboot, check settings/about/common/software info, "Software version" should now be whatever you flashed with kdzwriter above. Root access should still be working without problems.

9. Take a backup if everything is ok, then install Xposed/systemless v88.1 from Magisk if you haven't done so already and make sure it works. Xposed is the main thing that I had problems with that made me start over again, that's why this is a good point to take a TWRP snapshot.
[LG V20 Guides, News, & Discussion] Jonous:
I've stayed with 10c after rooting and haven't managed to successfully install xposed framework, neither the official nor magisk, i always get stuck in LG logo and have to flash the uninstaller. Don't know why, maybe something I've installed is conflicting.
[LG V20 Guides, News, & Discussion] exadeci:
You should update with kdzwriter, I've managed to have Magisk and Xposed though booting after xposed can take a long time (first time I though it had failed so I did it manually with wipe cache/dalvik)
[LG V20 Guides, News, & Discussion] Jaspreet.master7:
It takes approximately 15 minutes