yashsingh1/xdaforums huggingface dataset:
[LG V20 Guides, News, & Discussion] SLC 21:
They complete all the process but when LG UP says rebooting the phone turn off and then turn on into firmware update screen. Any solution?
[LG V20 Guides, News, & Discussion] Davestar2000:
Sorry for the long post ahead. I seem to have the following problem: The bootloader of my H990DS appears to be locked after trying to follow the root procedure.

I started out by installing H990ds10c_00_OPEN_TW_DS_OP_1214.kdz via LGUP (unpatched), which seemingly went well.

I then followed the instructions and made it to step 16. I entered fastboot flash recovery TWRP twice (with ample wait time in between) and then entered fastboot recovery (again, ample wait time). I thought I had to let the phone reboot, which resulted in the dreaded static screen.

I thought I’d start over and re-installed the H990ds10c_00_OPEN_TW_DS_OP_1214.kdz via LGUP.

I then went through the instructions again, and at step 16 upon entering fastboot flash recovery TWRP all I got was FAILED (remote: device is locked. Cannot flash images). The bootloader appears to be locked now. Entering fastboot oem unlock only returns Command unknown.

There are a few things that I found odd:

In the developer option, I initially (after first kdz install) enabled OEM unlock. This option stayed enabled after the re-install. It should have gone back to disabled with a complete re-install, no?

The was some message about Anti Rollback Test: PASS upon installing the kdz.

I have managed to get the PATCHED LGUP running. The phone os recognized as H99010c. I reflashed the firmware, bootloader still locked. I know because fastboot getvar unlocked just returns no.

I tried to just flash system (no brick), bootloader still locked.

I tried to just flash aboot (no brick), bootloader still locked.

If I try to flash a backup image from the root procedure (or TWRP directly), LGUP crashes.

I'm running out of ideas. Anyone know what to do to get to an unlocked bootloader state so I can finish rooting?
[LG V20 Guides, News, & Discussion] Prowler_gr:
I had the same issue when rooting via dirtysanta.

What worked for me was to temporarily pull out the usb cable after step 15.

At step 16 (with cable unplugged) type in terminal

fastboot flash recovery TWRP
< waiting for device >

, then replug the usb cable & let fastboot run its course with flashing TWRP.
[LG V20 Guides, News, & Discussion] Davestar2000:
Okay, time to fess up, I now know what went wrong and it's embarrassingly stupid. After step2.bat of the DirtySanta root procedure I mistakenly moved all(!) the .img files into a separate backup folder, so naturally the second time around the aboot.img was missing. The batch file (step1.bat) gave out a brief warning (no such file) but soldiered on regardless, leaving the phone with the stock bootloader as far as I understand. It only took like 15 tries to notice the warning...:silly:

After unpacking the DirtySanta files again - and thus restoring the folder to its full contents - I managed to acquire root for my H990DS.
[LG V20 Guides, News, & Discussion] sh525:
Thank you for such a good tool.
[LG V20 Guides, News, & Discussion] Aoitoori_Android:
Hi bro can you tell me where I can find that firmware to flag on my LGH910 ?
[LG V20 Guides, News, & Discussion] Sachiru:
Already rooted on a F800K.

I used LGUP to backup my 10z firmware partitions, then downgraded (using KDZ and Patched LGUP) to 10e and used DirtySanta and Magisk to root. Is there any way to use the 10z backups to upgrade my current firmware back to 10z without losing root?
[LG V20 Guides, News, & Discussion] Hamodi:
hii

i got H990 trying to go back to stock

not the phone on com ports recognised as H990j but the Model still as Uknown so the LgUp dont take me to the next screen to flash the Kdz

any ideas ?
[LG V20 Guides, News, & Discussion] D4rk9009:
What if my phone hard bricked..all I get is little vibrate when I put the battery in and press power that it

---------- Post added at 03:43 AM ---------- Previous post was at 03:41 AM ----------

It's happen after I flashed ing for raspberry pi on /dev/sda...app I used showed me this my sd card

---------- Post added at 03:45 AM ---------- Previous post was at 03:43 AM ----------

I just want my phone to work don't care root underfoot.I'll figure it out after I at least see lg logo..

---------- Post added at 04:02 AM ---------- Previous post was at 03:45 AM ----------

Lgup or uppercut cEnt mind headset.. model and port empty..
[LG V20 Guides, News, & Discussion] ChazzMatt:
Did you create a V20 LGUP file because the G5 patched LGUP file won't work on the V20? Do you need different custom file for different phone series? We're trying to use this method on the T-Mobile LG V30.

https://xdaforums.com/showthread.php?p=75208055

Sent from my official carrier unlocked LG V30+ US998
[LG V20 Guides, News, & Discussion] brossovitch:
If someone could work with me on patching lgup for the v30 or if i could provide anything for someone to make one, such as an incentive.. please let me know. Thanks!
[LG V20 Guides, News, & Discussion] antiparadigm:
OK, so I have an H910, ARB 0 but I cannot flash any KDZs because LG UP keeps crashing. I think i got confused by reading the WHOLE thread, and flashed the wrong aboot to my device, but now I cannot get LGUP to flash a kdz without crashing. I tried another modified .dll, but it did not change much. I reverted back to your original modded .dll, and still no cigar.

RIght now im stuck in Fastboot with a locked bootloader, but my computer will not recognize it. I can still get into download mode thankfully
[LG V20 Guides, News, & Discussion] IvanN8458:
Hi, bro. Did you get to solve this? Mine is doing the same.
[LG V20 Guides, News, & Discussion] D4rk9009:
Plz help someone

---------- Post added at 02:45 AM ---------- Previous post was at 02:43 AM ----------

Phone got no sign of life nothing..at all...

---------- Post added at 02:48 AM ---------- Previous post was at 02:45 AM ----------

I just need download mode can someone tell me how to get do mode to work..I tried everything I could think of besides short start it..
[LG V20 Guides, News, & Discussion] will5:
It´s ok to use the edited dll to downgrade a h990DS to something rootable? Or should I use another patched dll. Phone is recognized as h99010b with this dl. Is that ok?

BTW, what kdz will be rootable for my phone? It´s ARE region and there are no firmwares from 2016 on lg firmware page for this phone. All are from 2017.

Thanks
[LG V20 Guides, News, & Discussion] NotYetADev:
The bad news: The bootloader is locked down tight on the V20. LG UP can flash and write to memory but the bootloader checks afterwards if anything not release specific is present and it will halt boot and go into locked fastboot mode, causing a fastboot loop.

The good news: For those with an engineering bootloader available, you don't have to use DirtySanta to flash it anymore, you can just load up patched LG UP and flash ABOOT.img with the PARTITION DL option. (MAKE SURE THE ABOOT IMAGE YOU USE IS SPECIFIC TO YOUR DEVICE OR IT WILL WITHOUT A DOUBT 100% CAUSE AN UNRECOVERABLE HARD BRICK)

I experienced a lot of crashes with it, but the most success rate was with the format: NAMEOFPARTITIONHERE.img

For example: BOOT.img, SYSTEM.img, etc... (Yes, including the caps before .img)

.bin crashes the program, so rename .bin files to to .img.

Start Download mode on your phone, and wait until it says something along the lines of do not disconnect until finished. If you're hasty it will throw some weird errors.

Oddly the thing I don't understand about the bootloader is if recowvery dirtysanta works and it doesn't stop it from booting, why does custom LG UP flashes do it? If anyone finds a fix, let everyone know. A fix for this (getting out of fastboot loop) would allow root on many v20s.
[LG V20 Guides, News, & Discussion] runningnak3d:
So you are saying that if you use partition DL mode, and flash the engineering aboot as ABOOT.img that you have full fastboot, but are stuck in a loop?

I think what is more likely is that LG UP is erasing your aboot and using abootbak. lafd will not flash a partition without a matching signature, and the SIGN payload that is in the KDZ won't match the engineering aboot.

-- Brian
[LG V20 Guides, News, & Discussion] SLC 21:
nada por el momento
[LG V20 Guides, News, & Discussion] SLC 21:
what do they think about this method to flash ABOOT.img? wich KDZ is the correct to flash, newest version? oldest? same? Are there any method to know wich KDZ has the phone haves?

Is it just flashing aboot and praying that it starts? or do we have to do something else later?
[LG V20 Guides, News, & Discussion] IvanN8458:
Mine says 910K B50 on the Firmware Update screen. I read it has something to do with the original USB cable, but I hasn't tried with one as mine is generic. I will try this weekend and report back.
[LG V20 Guides, News, & Discussion] SLC 21:
i dont know if i do the correct process, first i run lg up, select partition dl, then i select aboot and i start the process.

same situation for me.
[LG V20 Guides, News, & Discussion] SLC 21:
Where can i get an engineering bootloader to flash it?
[LG V20 Guides, News, & Discussion] NotYetADev:
I didn't try flashing ABOOT. I was talking in theory there. I did a more detailed write up in another thread. I will link it in a moment. The fastboot loop occurs when ABOOT detects sercure boot fail. You kinda get rid of that if you flash the engineering bootloader.

---------- Post added at 03:07 AM ---------- Previous post was at 03:04 AM ----------

This is only applicable to the dirtysanta bootloader flashed devices. You can use the aboot.img provided with the dirtysanta files. Keep in mind flashing it on an unsupported device will 100% end up in a hard brick. Only proceed if you know what you're doing.
[LG V20 Guides, News, & Discussion] :
will there soon be a defined and complete written procedure to root the h990 with patched LGUP and its .dll file?
[LG V20 Guides, News, & Discussion] :
it seems this is the unlocking of LGUP to get it as they at LG might use it, so if this tool now allows flashing any partition of the device it is the unquestionnable way to go rather than fastboot flash which in my experience did not work.

Could someone describe each of the function that has been unlocked? I'm afraid that testing them, except for the "dump" function which sounded obvious enough to me, does some memory wipe or even just a change without prompting.
[LG V20 Guides, News, & Discussion] wongjos:
Hi,

Have anyone tried to flash h990n from f800l successfully?

If do so, please let me know how to do.
[LG V20 Guides, News, & Discussion] wongjos:
Can I have the instruction? Ok just to flash the whole DL Partition if switching to other model?

E.g. VS995 to US996

Ok for F800L to H990N?
[LG V20 Guides, News, & Discussion] quanqw:
Now we can unlock bootloader via this LG Up.
[LG V20 Guides, News, & Discussion] toastyp:
G[MENTION=3167089]runningnak3d[/MENTION] just got caught up on this thread. I know you have said that attempting to flash the engineering aboot with lgup won't work for multiple reasons but was wondering if it had been tested. I noticed another user was saying he/she managed to get into a fastboot loop and was wondering whether that meant recovery had been flashed successfully or not (I'm assuming no). If it's helpful, once ATT has pushed the update and I can dump it, I have no problem attempting to flash aboot this way and see what happens. Worst case I kdz and root the normal way.

Thinking about this and remembered something you said about torching the aboot means that lafd won't load. I'm assuming using lgup won't work anyways (you mentioned different sign payload (assuming a key of sorts)), just wanted to confirm that this avenue was 100% not viable.
[LG V20 Guides, News, & Discussion] runningnak3d:
The only thing you would do is brick your phone if you tried to flash aboot.

LG UP erases the partition before flashing it, so you would have a blank aboot.

The reason they boot looped is because a blank recovery partition is still an altered recovery. If your bootloader isn't unlocked and you change one byte of boot, recovery or laf, and you boot loop.

If the partition you are flashing doesn't have a hash that matches what is sent in the SIGN payload, it is a no go. I don't even think LG UP sends the SIGN payload when you flash an individual image file, so even if you tried to flash the stock recovery image, you would still have a boot loop.

-- Brian
[LG V20 Guides, News, & Discussion] MaZeNsMz:
Thank you, very excellent work:

I managed to update the rom to the latest without touching the root partition.

My Question, I updated System partition only, and I got the security patch updated to latest. However the rom software version is showing the same old one.

Any Idea what to do ?!?!
[LG V20 Guides, News, & Discussion] runningnak3d:
Just a reminder to anyone that still thinks that LG UP can send an individual partition -- it can't, and no amount of patching it will make it so that it can. Nougat lafd no longer accepts single partition flashes.

Now, if you have access to some build of Marshmallow for the V20 that I don't know about -- sure, MM lafd will accept an individual partition.

-- Brian
[LG V20 Guides, News, & Discussion] uccfar:
Thank you very much for this tool and the patched files

I am on VS995 12A (stuck on boot with message "your device is corrupt")

flashed 13A no luck

flashed US996 10F - (tried update& partitionDL both suceeds & The phone boots up but FC after the logon screen in 10secs :(

bootloader is locked - (checked in fastboot get var)

please help
[LG V20 Guides, News, & Discussion] einsteino:
did anyone lose their network after flashing kdz to their LS997? it would seem my device cant pick network at all but can read my sim. I flashed my VS996 kdz to my LS997, then did the dirty santa.
[LG V20 Guides, News, & Discussion] Phoenix591:
Crossflashing variants generally does that. You need to flash this (from the ls997 specific root thread) to restore the sprint modem and rest of firmware.

Once thats done with connectivity working you should use the dump option in LG up to make a backup of your phone to restore in case you run into connectivity problems like sometimes there is with the lineageOS and other roms
[LG V20 Guides, News, & Discussion] einsteino:
Thanks alot. Since it is a zip, I guess it is to be flashed via TWRP right? ie using the "install zip" option on TWRP.
[LG V20 Guides, News, & Discussion] Phoenix591:
Yup
[LG V20 Guides, News, & Discussion] einsteino:
Thank you so much, my network is back.
[LG V20 Guides, News, & Discussion] harlharbah:
HELP BRO

hello bro...

please i'm not a developer and i've run into serious problem trying to root my LG V20 f800L, after trying to root and it went bad, i opted to restore it back with the stock rom, but after restoring it comes up with Service disabled and my camera crashes a lot. i tried all i could to no avail. please i'll appreciate any help and also if you can help me mod my the version F800l with LGUP so i can try other stock of other variant on it. Thanks in advance
[LG V20 Guides, News, & Discussion] umby75:
Hi guys, since ten days ago I plugged the charger in my H990DS and when I woke up I found my phone stuck in Firmware Update screen with code 910K B50 there.

My phone wasn't never rooted and bootloader never unlocked too although I participated for bounty at developer who unlocked the bootloader.

I tried to flash the firmware again and the bar progress on phone was full but the phone isn't never boot as it should do...:(

What do you suggest for me?

Sent from my LG-H990 - Rome - Italy
[LG V20 Guides, News, & Discussion] runningnak3d:
What happens when you pull the battery?
[LG V20 Guides, News, & Discussion] umby75:
I've just fix it spraying parfume on charging plug and plugging the charger..now Android is upgrading!!

Edit:

The issue is solved only partially because if you restart the phone it shows Firmware Update screen and only wjen you spray alcool into plug charger and you try many times plugging the charger that you can boot the phone fine.

Anyway I get many errors and I can't create sms and WhatsApp backups...:(

Sent from my Oneplus A5000 - Rome - Italy
[LG V20 Guides, News, & Discussion] enki7:
Ok, this is my problem:

I am the tipically smart-dumb person ( I think I know what to do but usually break the things!).

I had an used LS997 lg v20 bought at ebay, I turned it into a US996 using the dirty santa thread.

But, after everything was ok, I could not connect to my carrier.

So I thought: Hmmm, maybe it is the rom, maybe it is the radio... and tinkered A LOT with roms and radio images.

END RESULT: my LG V20 is now "soft bricked".

The problems:

- LGUP or Uppercut does not read the MODEL, so I can´t do it anything with it.

- FLASHTOOL 2014 always gives me an error that I cant even read, cause the program does not have a roll bar... So I just read "....kdz does not..." and nothing... does not what? Match, work? I dont know.

Weirdly, in a program, my model shows as US996 (what is ok, cause I used dirtysanta), but the "rom" is US99610q.... I dont even know if this rom/model/version exist... cause I cant find it!

So, I tried anything to turn my phone in a KNOWN MODEL, but I cant... and the HEX edit to match DLL and LGUP is beyond my knowlage atm, cause last time I did a hex edit was in a ZX Spectrum, in 80s.

Anyone can guide me what to look, and what to change to try this hex edit? Or anyone has a solution to my problem?

My phone, now, is in a stuck LOGO, no recovery, I can get into fastboot mode, but the bootloader is locked again... and i can get in Download mode... but cant update, cause LGUP, FLASHTOOL and others always find some problem.

Thanks for any answer.

(I already had another phone, but it is a big PITTY for me to have a great phone bricked by me!)
[LG V20 Guides, News, & Discussion] runningnak3d:
[MENTION=5535815]enki7[/MENTION] You aren't using partition download mode. Even with this patched version of LG UP, if you use upgrade or refurbish to try and flash the entire KDZ it will fail the model check -- you MUST use partition DL mode. Select all partitions and click OK if it complains about partitions that have changed. It will flash any version onto any model.

-- Brian
[LG V20 Guides, News, & Discussion] enki7:
How can I use partition DL mode? In what program?

Thanks for the answer!
[LG V20 Guides, News, & Discussion] runningnak3d:
Please read the first post. That is what this thread is about. If you have downloaded the patched LG UP from the first post, then you have an additional radio button called "partition DL".

-- Brian
[LG V20 Guides, News, & Discussion] lovemypurps:
lost my os, only have twrp

i somehow mangaed to delete my os. how can i get back to stock somehow. i am on h918 version.
[LG V20 Guides, News, & Discussion] kenjmark:
thank you
[LG V20 Guides, News, & Discussion] epicuros:
But once you select DL partition, that is selected to update a kdz and not lose the recovery nor the root?
[LG V20 Guides, News, & Discussion] epicuros:
Help.

*I upgraded to a kdz by selecting the DL partition and then selecting all the options from the following menu (Select partition).

I have been updated to the new version but I have lost the root and the TWRP.

Can someone explain how to update without losing root and TWRP?

Thank you very much
[LG V20 Guides, News, & Discussion] runningnak3d:
You can select individual partitions....

If you are upgrading this way, you will lose root, but you don't have to lose TWRP.

Select all partitions, and then UNSELECT:

recovery

aboot

When you reboot, your phone will be on whatever KDZ you flashed, but you will still have the engineering bootloader, and TWRP.

IF you let the phone completely boot to the OS, it will wipe out recovery, so immediately boot to TWRP and flash Magisk again.

-- Brian
[LG V20 Guides, News, & Discussion] epicuros:
Done but now it only starts in TWRP.

I must have done something wrong.

a greeting
[LG V20 Guides, News, & Discussion] cnjax:
Use the button combo to boot into twrp. Under mount make sure system is mounted, then use twrp to boot to system
[LG V20 Guides, News, & Discussion] epicuros:
I have the botloader blocked

I can not record images

Any ideas?

device is locked. Cannot flash images)

Solved with lgup
[LG V20 Guides, News, & Discussion] epicuros:
Impossible for me to update without losing the recovery.

But with LGUP could I change the modem of my H990N to that of the H990DS ?.

Would it be enough to select the DL partition and only select the modem from a KDZ of the H990DS?

Greetings.

Enviado desde mi LG-H990 mediante Tapatalk
[LG V20 Guides, News, & Discussion] Stallio:
How to get download mode back? I get TWRP when I try to go to download mode. Iam using LG V20 H918.

Please help.
[LG V20 Guides, News, & Discussion] cnjax:
If twrp is on the download partition then that means you rooted with laf exploit and should already know that if you had done some reading, go back to that thread and READ and then you'd know how to get dl mode back
[LG V20 Guides, News, & Discussion] Stallio:
Hi, unfortunately I didn't rooted my phone, as my phone got network locked while trying to downgrade. I took it to a shop to fix it, may be they used the laf exploit, could you guide me to the post where it can be recovered if you remember?
[LG V20 Guides, News, & Discussion] cnjax:
Try here

https://xdaforums.com/v20/how-to/root-lafsploit-h918-version-t3773443
[LG V20 Guides, News, & Discussion] Angelo.:
Grazie mille per il vostro lavoro e per aver condiviso lgup con patch.

Ho potuto in questo modo ripristinare il mio LG V20 H990DS che non ne voleva sapere di installare correttamente il firmware a seguito del bootloop causato dall'aggiornamento dell'app LG Smartworld e successiva installazione del tema 'SHINE' scaricato sempre dallo store LG.

Inutile dire che sia il venditore che LG stessa si sono tirati indietro per ripristinare il telefono.

Grazie ancora a tutti.

Angelo

Thank you so much for your work and for sharing lgup with patch.

In this way I could restore my LG V20 H990DS that did not want to install the firmware correctly following the bootloop caused by updating the LG Smartworld app and subsequent installation of the theme 'SHINE' always downloaded from the LG store.

Needless to say that both the seller and LG itself have pulled back to restore the phone.

Thanks again to everyone.

Angelo
[LG V20 Guides, News, & Discussion] ironets:
just thank you!!! I was able to apply us996 to vs995 and save myself bunch of headache.
[LG V20 Guides, News, & Discussion] johnwaynegacy:
My problem is that I have 995 as a 996, but at this point lg driver doesn't work for me.
[LG V20 Guides, News, & Discussion] dark_prince:
Is there anyway to hack LGUP further to actually not pop "You have to select a known model, please" msg and proceed directly to the flash screen. I'm stuck at "Model List" and my phone appears as Model: Unkown and COM Ports: [COM4, H91510e]

I have the same error msg. were u able to recover?
[LG V20 Guides, News, & Discussion] Vofffa:
Hello everyone! Why I can not download LGUP_V20dll_Patched on the first post? I click on it and nothing happend... Thank you
[LG V20 Guides, News, & Discussion] Cyber_in:
help pls

I tried u r patch but still lgup not recognize my cell under modelits still unknown
[LG V20 Guides, News, & Discussion] Rafeh:
i have the same problem did you find any fix,

can octopus box fix such issues?
[LG V20 Guides, News, & Discussion] Cyber_in:
It need hardware
[LG V20 Guides, News, & Discussion] Cyber_in:
Pls some one help me

---------- Post added at 09:52 PM ---------- Previous post was at 09:51 PM ----------

Can some one provide about.img

Or atleast

Us996 lgup.dll file

---------- Post added at 09:53 PM ---------- Previous post was at 09:52 PM ----------

Is there any way to bypass the modelselection in lgup

I tried upcuter

No use
[LG V20 Guides, News, & Discussion] smhg007:
can i get lg g6 h872 patch file i'll be very thankful

can i get lg g6 h872 patch file i'll be very thankful