Database Info

PSA : Be VERY careful flashing .zips with TWRP and the new root process.

*******ALL IS FINE NEVERMIND THIS POST******
Do not use any mods unless you know what you are doing. If your phone cannot boot, there is no going back. There is no way to restore at the moment. So again do not modify the system or anything that you are unsure will work, don't end up with a paperweight.
Mods please leave this here until things are sorted out. Or until if/when we are able to restore to stock, or a custom ROM is released.
If you need help getting AdAway working, or changing emojis; feel free to ask I'm sure myself or others will help you in this thread.

Yup i wish this was started earlier lol

So is there something spexial we need to do for adaway? Already done the whole root process

xamius said:
So is there something spexial we need to do for adaway? Already done the whole root process
Click to expand...
Click to collapse
i just installed the apk from f-droid and it worked.

xamius said:
So is there something spexial we need to do for adaway? Already done the whole root process
Click to expand...
Click to collapse
I installed the dev version from here http://forum.xda-developers.com/showthread.php?t=2190753
Just enable system-less from preferences and you're set.

Here's a question. Can you enable multi-user on the V20 through build prop like we could on other phones? Inserting:
Fw.max_users=3
Fw.show_multiuserui=1

I installed the latest ad away from f-droid, and changed the default hosts file from /system to /data before enabling it, and it works fine.
---------- Post added at 03:43 PM ---------- Previous post was at 03:42 PM ----------
czerdrill said:
Here's a question. Can you enable multi-user on the V20 through build prop like we could on other phones? Inserting:
Fw.max_users=3
Fw.show_multiuserui=1
Click to expand...
Click to collapse
Yes, you just need to be aware of the limitations on some of the system apps and features.

kibmikey1 said:
I installed the latest ad away from f-droid, and changed the default hosts file from /system to /data before enabling it, and it works fine.
---------- Post added at 03:43 PM ---------- Previous post was at 03:42 PM ----------
Yes, you just need to be aware of the limitations on some of the system apps and features.
Click to expand...
Click to collapse
What limitations are there?

This is nothing new, though. Everyone attempting this should know full well that these are early days and using an exploit before we even have stock images to restore with is always risky. My motto is "keep it stock." Aside from ad blocking and a few other tweaks in build.prop, I keep flashing and other more serious mods to a minimum until there are methods to restore. I'm looking into seeing how TWRP handles the new tot's, but it looks like I'm going to have to cobble it together, which will take some time.
Edit: After looking around, it seems like an update of lgup is needed before any v20 firmware can be flashed, which I would bet will be on the way sometime later this month with the release of the unlocked (carrier free) variant.

So whats the scene update here for the V20? Just 1 variant is bootloader unlocked? What's the flash/root method and what models is it confirmed to work with?
RoOSTA

roosta said:
So whats the scene update here for the V20? Just 1 variant is bootloader unlocked? What's the flash/root method and what models is it confirmed to work with?
RoOSTA
Click to expand...
Click to collapse
http://forum.xda-developers.com/v20/development/h918-recowvery-unlock-v20-root-shell-t3490594 & so far T-mobile has the only unlocked bootloader AFAIK.

apps that use build.prop tweaks like l speed work well on my phone and I left kernel and CPU tweaks alone.

2muchspl said:
http://forum.xda-developers.com/v20/development/h918-recowvery-unlock-v20-root-shell-t3490594 & so far T-mobile has the only unlocked bootloader AFAIK.
Click to expand...
Click to collapse
So single SIMs only can be rooted - or this 1 model?

i'm assuming lgup is LG's version of Odin? what twrp repo were you looking at? I heard nandroid backups were screwed up too

I just got my V20 today from T-Mobile. I traded in my note 7 finally (very sad ) i felt i had too because i fly a lot. I didn't want to be on the news as a domestic terrorists lol Anyways can i install viper safely or should i wait? It an ad blocker are my must haves

albinoman887 said:
i'm assuming lgup is LG's version of Odin? what twrp repo were you looking at? I heard nandroid backups were screwed up too
Click to expand...
Click to collapse
Yeah. The little bit I know about it is that it flashes .tot and .kdz files. What I'm understanding is that there's a missing .dll in order to use the .tot files we have now.
Hook up with @jcadduono. He's been the point man with getting root.

The G.O.A.T. said:
I just got my V20 today from T-Mobile. I traded in my note 7 finally (very sad ) i felt i had too because i fly a lot. I didn't want to be on the news as a domestic terrorists lol Anyways can i install viper safely or should i wait? It an ad blocker are my must haves
Click to expand...
Click to collapse
I have can confirm that version of ad blocking works, I had to use ES file explorer to move file to system/bin and followed steps and everything works fine from there. I started using this after they took AdFree down. RIP
http://forum.xda-developers.com/android/software-hacking/ads-adblocker-v1-0-t3283855

Unbrick Method Link Here?
You think unbricking phones like this would work?
http://techxat.com/restore-lg-v20-stock-romfirmware-unroot/

So there's no restore for a bricked device at the moment?
tApPeD fROM mY nExUs 6

So does anyone know if us T-Mobile users are "safe"? Lol I've flashed things like fonts, iOS emojis, Google assistant, dual speaker mod, and changed some UI sounds and everything seems ok but just wondering if there are certain limitations

[US996] 100% Stock deODEXd ROM

Do you have a US996, and want to be able to start modding/theming the ROM? FINE! HERE! Lol...
Please know, this is 100% stock, including kernel. Also, I do not own a US996 (but I do own the H918). This ROM has already been tested (thanks @monsieurtalbot !)
No changes on the ROM. SuperSU gets flashed alongside the ROM. Oh, and setenforce=0 is set via init.qcom.post-boot
Before proceeding. It is absolutely necessary for you to be on a stable TWRP build (currently, RC8, 3.0.2-0, and 3.0.2-1). Also, you must have already have had decrypted your ENTIRE phone. If your phone bootloops into TWRP, you probably didn't decrypt, and/or didn't flash no-verity properly, or it could also be that you are on an old TWRP build. . You have been warned.
This is for the Factory Unlocked US Cellular. Untested on the other US996.
Here we have the base NRD90M ROM from LG. The only difference from this, and what came on your phone is, that it is not ODEXd anywhere. DeODEXing basically bundles all parts of an APK together which saves space, allows for modification of the APK (like for System UI and stuff), and ever so slightly increases performance (by the littlest amount possible). This is ONLY for the US996.
Also, no need to wipe, as /system is fully removed (your apps and settings will stay since that is in /data). Since we only have 1 base from LG, ROMs don't need to be wiped, even if coming from ODEX.
Major thanks to @Chainfire for creating SuperSU
Major thanks to @jcadduono for the root exploit, AND for the TWRP image(s), AND for inspiring me to learn to do it. Also, he supplied the stock System.img, boot.img, and sources for a custom kernel!/RealMVP

SUPER happy to say I am using this currently and it is flawless. Fantastic base for our custom unlocked US996 community.
No more systemless root. This is a full root and I was finally able to delete the stupid boot sounds.
Thx for letting me be the test dummy.
Just so everyone knows I dirty flashed in TWRP from stock and I have had 0 issues. I am a heavy power user.
Everything is working as it should be.
Since it's not specified in the OP - let me make sure that everyone understands that this is for the USA Factory Unlocked US996 ONLY.
Super excited for some custom roms. =)
---------- Post added at 10:53 PM ---------- Previous post was at 10:39 PM ----------
Moving this conversation over from the H918 thread...
I would love to see the FM working on our US996 . . .
BUT - I've had no luck flashing the available zips so far that are for the H918.
FM Service crashes - I figure the chip is there - just needs to likely be enabled on the kernel end.
SO - if you are truly looking into making us a kernel, let's put that on a likely very long todo list. lmao <3

monsieurtalbot said:
Since it's not specified in the OP - let me make sure that everyone understands that this is for the USA Factory Unlocked US996 ONLY.
Click to expand...
Click to collapse
I mean, they would have to be to have TWRP
And it does say US996 in title, as well as in OP

Tilde88 said:
I mean, they would have to be to have TWRP
And it does say US996 in title, as well as in OP
Click to expand...
Click to collapse
There's another US996 for US Cellular - as we all know - so as things get released possibly for that model (which holds the same model number for whatever reason) and this thread ages - it might not be a terrible idea to exclusively specify so some poor soul down the road doesn't flash this to the wrong device... :highfive:

monsieurtalbot said:
I would love to see the FM working on our US996 . . .
BUT - I've had no luck flashing the available zips so far that are for the H918.
FM Service crashes - I figure the chip is there - just needs to likely be enabled on the kernel end.
SO - if you are truly looking into making us a kernel, let's put that on a likely very long todo list. lmao <3
Click to expand...
Click to collapse
Shouldn't be too hard to enable in the kernel. And if it isn't in the source, it could added i guess

Tilde88 said:
Shouldn't be too hard to enable in the kernel. And if it isn't in the source, it could added i guess
Click to expand...
Click to collapse
Any chance you could post the md5 sum for the ROM to check that we got a good download? I want to ensure a good file before flashing a new system.

AlkaliV2 said:
Any chance you could post the md5 sum for the ROM to check that we got a good download? I want to ensure a good file before flashing a new system.
Click to expand...
Click to collapse
It would have to be later tonight, getting ready for work now. You can just double click the zip on your pc. If it opens without an error, you are good to go.

Would you happen to have a stock ODEXed rom for US996 to post as you did for the H918?
Also, are you planning to build anything off the US996 stock deODEXed rom or is it for safety net purposes?

I was thinking about diving into the v20 world to do some dev work, though am I reading this right? Each ROM has to be based off of the system.img for each model number? That makes it hard to decide which device model to buy
--->

Mentalmuso said:
I was thinking about diving into the v20 world to do some dev work, though am I reading this right? Each ROM has to be based off of the system.img for each model number? That makes it hard to decide which device model to buy
--->
Click to expand...
Click to collapse
I honestly am not sure, but I did this just to be safe. As it turns out, FM is not included in the US996 ROM or kernel. I don't know of any other discrepancies, but that was enough for me.
IMO the H918 is the way to go, and just Unlock it from Tmobile. But that's just my opinion.

papashex said:
Would you happen to have a stock ODEXed rom for US996 to post as you did for the H918?
Also, are you planning to build anything off the US996 stock deODEXed rom or is it for safety net purposes?
Click to expand...
Click to collapse
I suppose I could upload a stock ODEXd, but, I don't see the point. :cyclops:

You're right, no point. It's early in the game, hopefully there will be a .tot or .kdz (lg equivalent of ruu) for the eventual 7.1 update.
Thanks for your efforts to date.

Can this ROM be flashed on a sprint 997 that was unlocked and rooted using the dirty Santa method?
The reason I'm asking is because that process seems to change my phone to an unlocked 996 and I want to start fresh with a stock ROM.

Well this is weird. I went to install this and TWRP is telling me I have the wrong device. It is telling me i have a 918 when I know for a fact its a 996....

bryancotton84 said:
Well this is weird. I went to install this and TWRP is telling me I have the wrong device. It is telling me i have a 918 when I know for a fact its a 996....
Click to expand...
Click to collapse
It detects your model from build.prop I believe.
Can you change your model in your build.prop and retry?

Would anyone be willing on trying out a custom kernel? FM might be working. Plus other things and stuff .
I don't have a US996, so I can't test it. So be sure to have a stock boot.img and your stock /system/lib/modules folder. If this fails, you can simply flash your stock boot.img right within twrp, and then push the modules folder into /system/lib/modules. Or you can reflash the ROM.

i was able to dirty flash this straight onto my stock VS995 with the konverge kernel flashed as well and the only problem i have is the static boot but that's easily fixed

Get Ur Noob On said:
i was able to dirty flash this straight onto my stock VS995 with the konverge kernel flashed as well and the only problem i have is the static boot but that's easily fixed
Click to expand...
Click to collapse
What is static boot?
Anyone willing to test the custom kernel, be sure to read what I wrote in the post above. You can find it here

Tilde88 said:
What is static boot?
Anyone willing to test the custom kernel, be sure to read what I wrote in the post above. You can find it here
Click to expand...
Click to collapse
basically until the phone actually boots into the os it looks like a messed up tv showing only static colors and you cant see anything, what you do is you wait until it boots into the os and shut the screen off then hold your finger over the front camera and it fixes it and everything is normal.

Tilde88 said:
I suppose I could upload a stock ODEXd, but, I don't see the point. :cyclops:
Click to expand...
Click to collapse
Any chance you could do it, If it's not too much trouble? I'd like to install it on my F800L, if I can, and I seem to be having issues with the current deodex'd version.
If I'm honest, I have no idea if it will make any difference whatsoever, and the issue could be something completely unrelated (ihavenoideawhatimdoing), but I'd just like to try it, anyway. I got an odex'd H918 working, so It has me wondering if it makes any difference?

[GUIDE][UNBRICK] Patch LGUP to unlock features & unbrick V20 (Variant mismatch fix)

[GUIDE][UNBRICK] Patch LGUP to unlock features & unbrick V20 (Variant mismatch fix)
Team
After a flash gone very bad, I got myself a brick with a locked bootloader & wrong viariant in LGUP [US996-->H990ds].
In my attempt to recover I tried several silly things including flashing another variants firmware, however I managed to find a way to unbrick & restore the original firmware.
I ran into the G5 thread by @smitel, and did something similar for our V20 by patching LGUP.exe & our phones LGUP_common.dll with HxD Hex editor (my patched files attached).
After doing this I was able to force-flash either partial or full stock kdz using the [PARTITION DL] option, bypassing the variant mismatch warning (Phone was fully recognised as US996).
It even corrected the partition layout (H990DS is different to US996).
Credits about the original patch should go to @smitel
Press the THANKS button if you have found this thread helpfull

Prowler_gr said:
I ran into the G5 thread by @smitel by patching LGUP.exe & our phones LGUP_common.dll with HxD Hex editor (my patched files attached)
After doing this I was able to force-flash either partial or full stock kdz using the [PARTITION DL] option, without getting the dreaded variant mismatch.
Click to expand...
Click to collapse
I very glad to read you managed to save your phone! What you've found though may potentially be rather more powerful than you think (I don't know how powerful you think this is).
Instead of the complex DirtySanta procedure using DirtyCOW/CVE-2016-5195, it should be possible to use this to directly rewrite aboot. At which point you've greatly simplified the procedure, as well as opening it up for phones which lack a sufficiently early KDZ (Sprint which has no KDZ, H990TR which January is earliest).
Does still need a bit of experimentation to confirm though...

emdroidle said:
I very glad to read you managed to save your phone! What you've found though may potentially be rather more powerful than you think (I don't know how powerful you think this is).
Instead of the complex DirtySanta procedure using DirtyCOW/CVE-2016-5195, it should be possible to use this to directly rewrite aboot. At which point you've greatly simplified the procedure, as well as opening it up for phones which lack a sufficiently early KDZ (Sprint which has no KDZ, H990TR which January is earliest).
Does still need a bit of experimentation to confirm though...
Click to expand...
Click to collapse
I'm aware of the great value of my discovery. (Almost makes us unbrickable)
I was able to upgrade official firmware without loosing root or twrp.
To be honest I haven't tried flashing aboot or unofficial kdz, but if possible it unlocks full potential....

Prowler_gr said:
I'm aware of the great value of my discovery. (Almost makes us unbrickable)
I was able to upgrade official firmware without loosing root or twrp.
To be honest I haven't tried flashing aboot or unofficial kdz, but if possible it unlocks full potential....
Click to expand...
Click to collapse
I'd hardly rate it as "almost unbrickable" (`dd if=/dev/zero of=/dev/block/bootdevice/by-name/xbl2`; you're toast), but does give additional tricks.
There are a few other methods of doing firmware upgrades without losing root or TWRP. Both extracting the KDZ and turning into a flashable .zip, or my tool for directly writing the contents of a KDZ file.
The real potential here is if this can be used to install the DirtySanta aboot image, then it is a much simpler installation method. This should also be able to avoid the unreliable installing TWRP via `fastboot flash`. Additionally since this isn't relying on DirtyCOW/CVE-2016-5195 even up to date phones should be able to use this.
You're on a vanilla H990 single-SIM? Rooted via my method? Other method?

I agree that this method won't save you once you lose "Download Mode" that's why I used the word "Almost"
I have a dual-sim H990DS, originally rooted with your method (even paid for your bounty. although hadn't pledged).
I had a US996 rom fully flashed on my phone (with different partition layout), & I was still able to go back using this method.

Well, I will be the guinea pig
I got my H910 back from LG, and of course dirtycow was patched, so if this can flash the us996 debug aboot and not brick my phone, that will be something.
EDIT: @emdroidle I am not at home, but looking at your repo, it looks like you are now able to package back up a v20 format KDZ. If that is true, and this patched LG UP can ignore the signature of the KDZ -- this may very well be one of the greatest finds in a long time. Really looking forward to testing it to see....

It worked on my device. thank you very much
---------- Post added at 02:07 PM ---------- Previous post was at 02:02 PM ----------
runningnak3d said:
Well, I will be the guinea pig
I got my H910 back from LG, and of course dirtycow was patched, so if this can flash the us996 debug aboot and not brick my phone, that will be something.
EDIT: @emdroidle I am not at home, but looking at your repo, it looks like you are now able to package back up a v20 format KDZ. If that is true, and this patched LG UP can ignore the signature of the KDZ -- this may very well be one of the greatest finds in a long time. Really looking forward to testing it to see....
Click to expand...
Click to collapse
I have a h910 device and I have kdz to h910pr version. But I can not unlock device to root. And I used this way. It can kdz us996 files without problems

@bilong9 So you flashed a stock US996 KDZ onto your H910 with this method, or did you repackage a KDZ with the US996 debug aboot?
-- Brian

runningnak3d said:
Well, I will be the guinea pig
I got my H910 back from LG, and of course dirtycow was patched, so if this can flash the us996 debug aboot and not brick my phone, that will be something.
EDIT: @emdroidle I am not at home, but looking at your repo, it looks like you are now able to package back up a v20 format KDZ. If that is true, and this patched LG UP can ignore the signature of the KDZ -- this may very well be one of the greatest finds in a long time. Really looking forward to testing it to see....
Click to expand...
Click to collapse
runningnak3d said:
@bilong9 So you flashed a stock US996 KDZ onto your H910 with this method, or did you repackage a KDZ with the US996 debug aboot?
-- Brian
Click to expand...
Click to collapse
Yes. I used this method for my h910 device. My english is very bad sorry
---------- Post added at 02:50 PM ---------- Previous post was at 02:26 PM ----------
---------- Post added at 02:54 PM ---------- Previous post was at 02:50 PM ----------

I already knew that you can flash any V20 variants stock rom if the kdz is officially signed by LG (my phone was fully recognised as US996 when bricked & was able to flash H990DS firmware).
What I don't know is if an unofficial .kdz (not signed by LG - eg compiled with KDZ extractor) can be flashed.
I strongly suspect it would but haven't tried it yet.

I wish this had worked for me. Both LGUP and LG Flashtool 2014 both fail every time. With your patched files for LGUP I got stuck at 4% and then it crashes. Before I used the patched files I got stuck at 9% and then it crashes. I'm on US99610H and I want to downgrade but have had no luck and I can't seem to find how to solve the issues I'm having.

@me2151

Slashbeast24 said:
I wish this had worked for me. Both LGUP and LG Flashtool 2014 both fail every time. With your patched files for LGUP I got stuck at 4% and then it crashes. Before I used the patched files I got stuck at 9% and then it crashes. I'm on US99610H and I want to downgrade but have had no luck and I can't seem to find how to solve the issues I'm having.
Click to expand...
Click to collapse
Perhaps try one partition at a time, or try disabling antivirus (my hex edit invalidates the files signature hence some antivirus may classify it as malware).
To be sure I would try flashing US99610H again (to rule-out anti-rollback)...

pro_granade said:
@me2151
Click to expand...
Click to collapse
already attempted it yesterday. it dumps partitions fine but installing partitions is wonkey. it wouldnt flash my boot.img but would flash its header so the phone refused to boot. crashes when you try to flash aboot on.

Prowler_gr said:
Perhaps try one partition at a time, or try disabling antivirus (my hex edit invalidates the files signature hence some antivirus may classify it as malware).
To be sure I would try flashing US99610H again (to rule-out anti-rollback)...
Click to expand...
Click to collapse
Alright, so I downloaded the US99610H KDZ and I just hit Upgrade and It did say something about Anti-Rollback check passed and the LGUP program didn't crash. Is there any way to go back to a previous firmware version or am I stuck with an Unrootable V20?

Slashbeast24 said:
Alright, so I downloaded the US99610H KDZ and I just hit Upgrade and It did say something about Anti-Rollback check passed and the LGUP program didn't crash. Is there any way to go back to a previous firmware version or am I stuck with an Unrootable V20?
Click to expand...
Click to collapse
That hints that anti-rollback is active on your phone (you can flash your current firmware or a higher version - not an older one). Try flashing system only & see what happens (cannot guarantee you won't get a brick, but I believe its highly unlikely - you have been warned)

me2151 said:
already attempted it yesterday. it dumps partitions fine but installing partitions is wonkey. it wouldnt flash my boot.img but would flash its header so the phone refused to boot. crashes when you try to flash aboot on.
Click to expand...
Click to collapse
Is your phone still recognised?
I suggest you retry with another cable (try the lg stock), updated drivers etc. I have flashed aboot many times on my H990DS.

Prowler_gr said:
Is your phone still recognised?
I suggest you retry with another cable (try the lg stock), updated drivers etc. I have flashed aboot many times on my H990DS.
Click to expand...
Click to collapse
lol my phones bricked now(different reason than this) and im leaving the v20 scene

Prowler_gr said:
Perhaps try one partition at a time, or try disabling antivirus (my hex edit invalidates the files signature hence some antivirus may classify it as malware).
To be sure I would try flashing US99610H again (to rule-out anti-rollback)...
Click to expand...
Click to collapse
Prowler_gr said:
That hints that anti-rollback is active on your phone (you can flash your current firmware or a higher version - not an older one). Try flashing system only & see what happens (cannot guarantee you won't get a brick, but I believe its highly unlikely - you have been warned)
Click to expand...
Click to collapse
Alright, so if I just flash the system while clicking Partition DL, I run the risk of having a brick. If I don't get a brick would that somehow deactivate anti-rollback if I just flash the US99610H System?

me2151 said:
lol my phones bricked now(different reason than this) and im leaving the v20 scene
Click to expand...
Click to collapse
lol. You got me sweating. I farewell you (in your thread), & then I read your post here thinking it's because of this...
Enjoy your new toy!!!

LG H918 Update v10r

New update H91810r
Seems like a security update
kdz:https://drive.google.com/open?id=1Gy-lUWvutnA8Rxd3eLMGs1PulxqhyGoO
Donate: paypal.me/HassaanM

It would be nice to have a stock ROM of this like they did on P and Q. With the stock kernel download on the side with KCAL, RCT implemented. ?
---------- Post added at 12:28 AM ---------- Previous post was at 12:19 AM ----------
But I have this weird feeling we're screwed. There's only a few of us left if you've noticed.

If you mean a flashable zip, I'll be glad to post one.

runningnak3d said:
If you mean a flashable zip, I'll be glad to post one.
Click to expand...
Click to collapse
Oh man your the man! A huge thank you!

runningnak3d said:
If you mean a flashable zip, I'll be glad to post one.
Click to expand...
Click to collapse
Yes please I want to keep root

I'm so sick of trying to get my H918 TMobile to root, I'm on H91810q... I might as well just flash this kdz because I can't root, cant unlock bootloader or do anything else to be a android nerd anyways. I should flash this just for the pleasure of a little something to update my precious V20. Thanks for posting link bro

Andy Chi said:
I'm so sick of trying to get my H918 TMobile to root, I'm on H91810q... I might as well just flash this kdz because I can't root, cant unlock bootloader or do anything else to be a android nerd anyways. I should flash this just for the pleasure of a little something to update my precious V20. Thanks for posting link bro
Click to expand...
Click to collapse
Uh im pretty certain that it's because 10q is NON-rootable. You needed to be rooted before updating to q. I am still on k for instance unsure of when I want to root but will not update to q+ for the root problem.
Oh and don't try to flash/kdz back to some lesser than q ROM, as you will hard brick.

Yea I know bro. I learned the hard way and luckily I didn't successfully revert to an older Rom.... I read a thread here and was like oh chitt I almost wrecked my phone lol. I should prolly wait till maybe q gets rooted but q does not look like its going to get any root at all, by as I read so far, devs are not interested.. So I guess ill go ahead and just flash this kdz

runningnak3d said:
If you mean a flashable zip, I'll be glad to post one.
Click to expand...
Click to collapse
Would you suggest updating? I can't root as it is.
Sent from my LG V20 using XDA Labs

@BROKEN1981 It is still ARB 1 so if by some miracle a kernel exploit is found, you can roll back to 10p if needed.
-- Brian

runningnak3d said:
@BROKEN1981 It is still ARB 1 so if by some miracle a kernel exploit is found, you can roll back to 10p if needed.
-- Brian
Click to expand...
Click to collapse
Ah cool, thank you
Sent from my LG V20 using XDA Labs

I'm on v10k (rooted) if I update to this will I be able to keep root?

techpreneur said:
I'm on v10k (rooted) if I update to this will I be able to keep root?
Click to expand...
Click to collapse
No Flash the 10r rom
https://www.google.com/url?sa=t&rct...zip-t3681312&usg=AOvVaw3KvFfn5ce29A7fAg0l7Snf

Hi, there. I just bought a V20 T-Mo for a really good price but the phone issue is that every time I turn it on, it goes straight to the "Firmware Update" screen without pressing any volume keys. It shows in LGUP and all with no problem, the firmware version is LGH918AT-01-V10R-310-260-NOV-17-2017-ARB01+0 as it shows when I try flash other KDZs such as 10R_00 or 10Q. The only way to make it boot normally is to flash the V10i KDZ, it starts to flash and immediately it says "Error Tot Anti rollback version is smaller than device" (Image below), phone reboots and starts normally, but if I turn it off and on again it goes to the "Firmware update" screen again.
Does anybody know how I can fix this and help me here? I've been doing some research but can't get it sorted out. Thanks in advance.

IvanN8458 said:
Hi, there. I just bought a V20 T-Mo for a really good price but the phone issue is that every time I turn it on, it goes straight to the "Firmware Update" screen without pressing any volume keys. It shows in LGUP and all with no problem, the firmware version is LGH918AT-01-V10R-310-260-NOV-17-2017-ARB01+0 as it shows when I try flash other KDZs such as 10R_00 or 10Q. The only way to make it boot normally is to flash the V10i KDZ, it starts to flash and immediately it says "Error Tot Anti rollback version is smaller than device" (Image below), phone reboots and starts normally, but if I turn it off and on again it goes to the "Firmware update" screen again.
Does anybody know how I can fix this and help me here? I've been doing some research but can't get it sorted out. Thanks in advance.
Click to expand...
Click to collapse
Not the place to ask this. Go to the question section and make a new post after you have used the search button about that issue. Maybe edit this comment and try again.

I'm not bothering to update to 10r i was already there and reflashed back to 10p in hopes of 10p being the first to get root and recovery out of this security mess that LG and T mobile has spread worldwide. Meaning being that the 10p being the 1st stage of security patches they have pushed. Iv'e decided to buy another v20 thats on the old firmware and just do a mobo swap into my mint cond v20 it's the easiest route at this point. I'd think LG was to busy paying off lawsuits and replacing phones to be pushing these exploit crippling updates.

Dear LG V20 H918 users, I am facing ridiculously low battery life on my new device. do you face the same problem? or you solved it somehow? please pardon my off topic post...

sadique_shiblee said:
Dear LG V20 H918 users, I am facing ridiculously low battery life on my new device. do you face the same problem? or you solved it somehow? please pardon my off topic post...
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Click to collapse
Well you can start by flash my room SuperV20

H910v10u Files

@runningnak3d and @dudeawsome here are the h910 10u files! ATT finally let me update this morning. Let me know if I missed anything.
https://drive.google.com/open?id=1gm823SV5rVSUOEOErbVqWYnBX3sd2RqC
I'm adding the h910 v10v files here as well for any stock rom developers or for those who want to update manually.
https://drive.google.com/open?id=1QuZ2BbN7THWieAH6SpBf5KSBml3J24aU

toastyp said:
@runningnak3d and @dudeawsome here are the h910 10u files! ATT finally let me update this morning. Let me know if I missed anything.
https://drive.google.com/open?id=1gm823SV5rVSUOEOErbVqWYnBX3sd2RqC
Click to expand...
Click to collapse
Thanks

toastyp said:
@runningnak3d and @dudeawsome here are the h910 10u files! ATT finally let me update this morning. Let me know if I missed anything.
https://drive.google.com/open?id=1gm823SV5rVSUOEOErbVqWYnBX3sd2RqC
Click to expand...
Click to collapse
Told you dude lol

@toastyp
Could you please share with me the QCN of the H910 or tell me where I could find it?
My computer has no signal or bluetooth, but imei and baseband are fine.
They told me that you only need to flash that to make it perfect.
Thank you very much and I hope you save me ...

What exactly is a qcn? Never heard of that partition or seen it listed before in an adb dump. That zip contains every single non sensitive partition available on the h910 idk what else could be missing. Bad Bluetooth and wifi could be a kernel issue or problems with your radio. Try new kernel or reflashing system?

toastyp said:
What exactly is a qcn? Never heard of that partition or seen it listed before in an adb dump. That zip contains every single non sensitive partition available on the h910 idk what else could be missing. Bad Bluetooth and wifi could be a kernel issue or problems with your radio. Try new kernel or reflashing system?
Click to expand...
Click to collapse
QCN file
It's a shortcut for Qualcomm's calibration network
It is a calibration file for slanderous networks, files that can be extracted and re-downloaded from all the machines that carry the Qualcomm processor and that we need in the case of deleting the EFS files or the severity of the network failure, such as interruption and care should be taken to write badly or by mistake to avoid the problem: Unknown version or in English: (baseband unknown version).
This file is the data related to the signal, along with several configuration parameters in the EFS folder that are responsible for how and that the computer connects to the network, this is useful for when we have the msj. "no service" or "only emergency call".

The QCN is in modemst1 or st2 (I haven't bothered to completely decode them).
Either way, they also contain other parameters that are specific to your device, so you have to have a backup of them -- you can't just take someone else's....
EDIT: if you rooted your H910 using the method I posted, I hope you made the optional backup. I could change the wording to "mandatory", but it isn't mandatory. The "highly recommended" should be sufficient.
-- Brian

@runningnak3d appreciate the info.

@runningnak3d
I had already lost the signal before doing the tutorial AT & T H910 up to v10u. (Actually I did it to see if I recovered the signal) I flashed the full stock for var if I returned but nothing.
Actually I do not know what else to do ...
---------- Post added at 11:19 AM ---------- Previous post was at 11:19 AM ----------
[/COLOR @runningnak3d
I had already lost the signal before doing the tutorial AT & T H910 up to v10u. (Actually I did it to see if I recovered the signal) I flashed the full stock for var if I returned but nothing.
Actually I do not know what else to do ...

So you weren't rooted -- your phone just lost signal out of the blue?
I see you still have your IMEI, so I doubt those partitions became corrupt. What is more likely is a hardware problem. Since you can still pull up baseband info, I doubt it is your modem -- more likely there is a break in the antenna.
-- Brian

@runningnak3d
I had dirtysanta root, and the superV20 rom.
After I installed alpharom in the aroma there is an option to update / install modem. I think after that I ran out of signal.
Then I did the tutorials I mentioned earlier to see if it worked and now I'm in stock 10q

Excuse me Sr @runningnak3d , I have hope to recover my smartphone or can not do anything ???

If you don't have a backup of modemst1 and st2 -- I dunno. If you do, restore them and all will be good.
We really need a sticky around here that says: "BACKUP YOUR EFS!"
-- Brian

runningnak3d said:
If you don't have a backup of modemst1 and st2 -- I dunno. If you do, restore them and all will be good.
We really need a sticky around here that says: "BACKUP YOUR EFS!"
-- Brian
Click to expand...
Click to collapse
That and noobs learning to read first before flashing sh*t
Sent from my LG-H910 using XDA Labs

I'm not sure why ROM builders are including firmware. Having the modem out of sync with the rest of the firmware *usually* won't hurt anything, but when it does -- better have a full backup.
-- Brian

runningnak3d said:
If you don't have a backup of modemst1 and st2 -- I dunno. If you do, restore them and all will be good.
We really need a sticky around here that says: "BACKUP YOUR EFS!"
-- Brian
Click to expand...
Click to collapse
:crying:
I better think about looking for another mobile

You can fix this if you can get access to dumps from another phone. The problem is, this is exactly what you don't want to share.
If you search the V20 subreddit, some idiot posted theirs as a "fix" for this problem. You can either follow the post and -- well -- I am not sure what will happen when everyone has the same IMEI, or you can use those files to fix yours.
hexdiff and bless are your friends.
-- Brian

other firmware
toastyp said:
@runningnak3d and @dudeawsome here are the h910 10u files! ATT finally let me update this morning. Let me know if I missed anything.
https://drive.google.com/open?id=1gm823SV5rVSUOEOErbVqWYnBX3sd2RqC
Click to expand...
Click to collapse
Hi!
Do you have the update file for version 910r too? I just got my V20 yesterday, and don't want to go beyond the r update as I heard some root/unbrand features will be locked with version 910u.
The phone unlock for all carriers will remain intact if I update, I assume? Thanks in advance.

runningnak3d said:
You can fix this if you can get access to dumps from another phone. The problem is, this is exactly what you don't want to share.
If you search the V20 subreddit, some idiot posted theirs as a "fix" for this problem. You can either follow the post and -- well -- I am not sure what will happen when everyone has the same IMEI, or you can use those files to fix yours.
hexdiff and bless are your friends.
-- Brian
Click to expand...
Click to collapse
Where i get V20 subreddit???
Sr. @runningnak3d

AWT86 said:
Hi!
Do you have the update file for version 910r too? I just got my V20 yesterday, and don't want to go beyond the r update as I heard some root/unbrand features will be locked with version 910u.
The phone unlock for all carriers will remain intact if I update, I assume? Thanks in advance.
Click to expand...
Click to collapse
Haven't heard of 10u "locking" down the phone and it doesn't have anti rollback so you can easily revert. If you want 10r runningnak3d posted a flashable 10r zip somewhere. Use the search button