yashsingh1/xdaforums huggingface dataset:
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Linsolv:
Not used the Second-Screen version, and I had abysmal battery life. No idea if it was better before this but I ended up going back to stock just to save my battery, since this is my daily driver and all.

Edit: Side question but is there any info on whether or not OP is planning on porting 16.0? I know it's probably a ton of work so it's more than a little presumptuous but I'm hopeful.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] cityneversleepz:
[MENTION=2881807]x86cpu[/MENTION] after the last update Okay Google is working minus the voice unlock. But that's a big improvement. Stock kennel. Haven't tested with gamma

LS-997
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Migush:
You can probably catch up to what he said about Android Pie if you go ~10 pages back or search for something like "9", "pie" or "16"
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] AidenM:
Anyone else having weird problems with this build? Sometimes the fingerprint sensor doesn't work, the phone won't unlock, notification actions won't respond, etc. I tried a total reflash with wiping data but that didn't work. I'm on H918 10p.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] c0mpl3xy:
Every time I screenshot about a minute later I get a notification saying a bug report has been generated. Apparently there is some key shortcut for that. Any way to turn it off?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] lhss173:
[MENTION=2881807]x86cpu[/MENTION]

hi，thanks for you contribution 。

I have never Install LineageOS,this is the first time,last ROM i used was WETA,my phone is us996

I did follaw the steps that you say,change the recover to TWRP 3.2.3-0, flash to-x86cpu.zip,and the latest UNOFFICIAL ROM。But it doesn't work i think.Reboot to system,There are full of gray horizontal stripes after the LG logo,and i can see some blue animation behind the horizontal stripes，and about 3or4 minutes my phone will reboot to recover Automatically。Maybe i did something wrong ,and now i need help.Can you give me some advice，that will be helpful

Thanks again
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Phoenix591:
Sounds like you might have rooted with dirty Santa, scroll down the download list and grab the us996-DS version instead. (Or if that's the one you already downloaded, and you unlocked/rooted through LG, grab the regular us996 version).

The to-x86cpu.zip is unnecessary unless switching from a really old unofficial, or a lineage build from someone else.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Grin59:
Wow thank you, never knew you could do this much. Especially with moving and adding to the stock toggles :D
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] lhss173:
ok Thank you，I will have a try:)
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] ottersR:
Just a heads up, on the Sept 3 build the flashlight has stopped working. Won't turn on from icon and the long press for flashlight when screen is off just does a soft boot now
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Nakashima Taiki:
Anyone have the 1st september build?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] pierro78:
h910(?) : crash when going to an area with no signal : alternative kernel ?

Hey folks,

I am having an issue with latest unofficial (without second screen) or other lineageos roms : when I go to an area with no phone signal I have a

"Kernel panic - not syncing: susbsy-restart: Resetting the SoC - modem crashed".

More info and discussion on a separate thread here : https://xdaforums.com/v20/help/h910-lineageos-crash-to-signal-t3839170

... I hope this is the right discussion to get help on this ???

maybe there is an alternative kernel that could work ??? :confused:

you can reply in the separate thread https://xdaforums.com/v20/help/h910-lineageos-crash-to-signal-t3839170 if you want :) thanks !!!
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Redline:
Try Gamma kernel. Do a TWRP backup, flash it and reboot. See how you go. If it doesn't happen then we know it's a problem in x86's LOS kernel, if it happens still then it's a problem with the ROM.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] pierro78:
thanks for answering !

I tried with phr00t's 15.1 with Gamma v24.1 with second screen enabled and it also crashed ... but Gamma and LOS kernel probably share a large code base ???

PS : if you want you can also answer in the thread where I give more details about my issue : https://xdaforums.com/v20/help/h910-lineageos-crash-to-signal-t3839170 ;)
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Migush:
I've also had the modem crashing quite often, and it happened more frequently over time. At last I didn't know what to to, so I thought why not use KDZWriter to reflash the modem? Well for me that worked, but after three months I started getting these panics again, so just used KDZWriter and it worked again.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Nakashima Taiki:
Update on my previous post: After format data and freshly install the rom, the hiccups are gone. Will test further. Probably vecause of the updated graphics.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] c0mpl3xy:
From what I'm reading looks like clean flash will be necessary for new build. I still haven't updated to it.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] NippleSauce:
Perhaps it depends on when you last clean flashed.

I clean flashed the 8-31 build and updated to the 9-03 build via a dirty flash and haven't had any issues yet. Plus, I think the battery issue I was experiencing on 8-31 was fixed in 9-03. Still testing though.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] qwertyuipo:
Does it work with f800l devices, if it can then how?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] pierro78:
kernel panic (modem crashing) : how to reflash firmware ?

Thanks so much for answering !! :good: ... my h910 is working perfectly fine with super rom (v10v based), maybe I could just backup my super rom firmware partition from twrp and then restore it after installing lineageos ? maybe that could solve my modem crashing issue ???? :confused:

Thanks again for any help ! :)
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Migush:
Hmm idk really, but I recommend you try using KDZ writer as you don't need to reset. Just use the "-m" and "-c" options when doing it.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] pierro78:
thanks but the problem is there is apparently no kdz file for h910 ??
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] iversenshotrods:
0903 lineage phone lag h918

Have an H918 and was working fine until updating to the current 0903 lineage. After update the phone app would have 10-15 second delay after pressing the call button before showing the failing screen and connecting the call.

If in a call and I switch to speaker or headset there's a 20ish second delay with no auto audio in or out but then comes back fine. Just like a super super long glitch.

Any ideas how to fix? I tried clean install, couple different kernels, reflash 0903. Can't figure it out.

---------- Post added at 10:05 PM ---------- Previous post was at 10:01 PM ----------

Same here. Phone app has a 10-20 second lag if switching audio source or when pressing the call button after dialing. Have you found a fix?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Migush:
Yeah, having the same problems with my H990DS
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Nakashima Taiki:
I format my data and reflash the rom. It seems working fine on my end.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] thebigcw:
Yes, similar issues with fingerprint and audio sources taking several seconds to switch like others mentioned. There's also a persistent issue where this ROM breaks voice functionality on apps like Discord and Skype. The audio is inaudible unless you speak directly into the top microphone, in which case it is distorted and unpleasant to hear. I've since switched back to a stock-based ROM which works great and is audible at normal volumes with normal usage of Discord. Major problems with the way this ROM handles the microphones for apps like Discord
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Jongla:
Is there any specific Safetynet fix?

I have tried the methods using Magisk props config but they only work for like 1 minute after reboot, then both cts profile and basic integrity turns to false again.

I have tried clean flashing but doesn't work.

I am on latest build with Gamma Kernel.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] tech_infinity:
Which magisk version are you using? Also it is always good to mention your device model
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Jongla:
Oh I saw some posts with same problem after searching so I thought it was a general problem. That's why didn't give any details.

I am using a H910 and Magisk 17.1, latest build with Gamma Kernel. Tried clean wiping and stock kernel, but doesn't work.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] pierro78:
h910 modem.img file ?

Hey [MENTION=8852589]adityajiwap[/MENTION] , I seem to have a similar modem crashing issue with my h910 ( details on https://xdaforums.com/v20/help/h910-lineageos-crash-to-signal-t3839170 )

... I had a look at the most recent Alpha & Super roms but was not able to locate the modem.img file ... would you be so kind as sharing your modem.img file with me so that I can try lineageos ?? :) Thanks so much !

PS :

Also did you have a look at phr00t h910 second screen lineageos build with boredsigns in the second screen thread ? ... I am curious to know how battery life is with this build ? ... I tried it and it was great and fast but I had the modem crashing issue ...
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] bullet15963:
Have you tried dirty flashing Magisk over top again?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] uxairmalik:
link for gamma kernel SS builds. Couldnt find them. want to try them on lineage os.

h990
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] ki11aprime:
As someone mentioned to you in the other thread there is no gammar ss builds. Plz read
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Grin59:
Yes there are, I'm using them. Think Omar is building them now although you gotta change something to get the second screen on the actual second screen
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] joaovictorsouza:
[MENTION=2881807]x86cpu[/MENTION] the camera problem with treble is the lib shims? I was studying the patch that OnePlus 3 is using and maybe I can solve...
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Redline:
If I have permission from [MENTION=5103965]Omar-Avelar[/MENTION] to, I can privately build you a second screen version of the latest Gamma kernel to use for your variants. I've done this previously and have tested them with the second screen lineage versions and they work fine. You should probably ask questions about a kernel that doesn't come with this ROM in the Gamma thread itself.

This is correct. The original second screen version of Gamma that was put out (based on v24 I believe) didn't have the line that specifies whether to disable the second screen or not, set correctly. Changing this makes the second screen work perfectly fine. I'm unsure what the gamma devs plans for the second screen are, but I've asked him in his thread and I'm always happy to help people out provided I've got permission to.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] uxairmalik:
That would be great if you can build the gamma kernal with SS.

But ofcourse with permissions
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Grin59:
Could you possibly build me one for the H918?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] c0mpl3xy:
Clean flashed 03 VS995 15.1 and i'm going to set it up with lineage kernel.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] c0mpl3xy:
Edit: so far so good. Battery seems a bit better than usual
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] adityajiwap:
hey, this one works for me: https://drive.google.com/file/d/1WQrBl6CGgysg0FqAF-emZRdUTlZv_LQA/view?usp=sharing

you can try flashing it with fastboot.

i've tried the second screen build but i reverted back to stock since i'm facing some performance issues, didn't notice anything wrong with battery life tho.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] pierro78:
(h910) how to flash modemv20new ?

thanks so much [MENTION=8852589]adityajiwap[/MENTION] !!

I guess you flashed it using "fastboot flash modem modemv20new" ??

Thanks again !
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] adityajiwap:
Yes, make sure to have your original modem file around just in case.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] cityneversleepz:
Use Magisk Manager version 5.8.3 unofficial
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Phop:
I'm using the non-SS version of this and am thinking of switching over. Does the second screen version still have the problem where the screen shifts upward or downward when the turning off the phone screen (during the screen off animation)?

Thanks.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Jongla:
Could share more info? Is it a modified version? Modded by which dev? Can you link to the thread?

I searched for "unofficial magisk 5.8.3" but nothing turns up.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] gapro800:
Kernel Crash

Hey guys!

My phone vs995, I flash UNOFFICIAL ROM and Gamma Kernel for [All Lineage Variants]

I can't understand, every few days my phone becomes like in the attached picture.

But I'm a new member so I can't post pictures.

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

Kernel Crash

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

LGE Crash Handler : Kernel Crash!

If you want to get ram dump, Please do following action.

1) Please connect USB.

2) Get them ram dump image QPST Configuration.

If you want to Reboot. Press Volume Down and Hold a Second

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

Resset reason

reboot_reason: 0x6d630100 tzbsp_reason: 0x6d630301 gcc_reset_status: 0x3

dload_entry_count: 1 pm_pon: 0x2000000200a0 pmi_pon: 0x200a0

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

Board info

board_rev: 1.0

msm_serial: 0xa69d976 msm_rev: v3.1 feature_id: 0x19 midr_el1: 0x511f2112

storage_serial: 0xa7331ae1 boot_config: 0x1c9 jtag_id: 0x409470e1 oem_id: 0x310000

cx_pvs: 4 mx_pvs: 4 pm: 09.02.00 pmi: 13.01.01

secure: enabled

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

More...........................

Help me!

:crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying:
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Ckani:
I have only one major issue which is the speakerphone does not work. It turns on and I can hear the person called but, they cannot hear me at all unless I yell. VS995
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] c0mpl3xy:
What tuning are you using here? I want to reduce retention but I have no idea what to do here
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Phop:
The main ones that will get rid of retention are the settings under Color Calibration: red, green, blue.

Set all of these to around 90% and your retention will go away forever. Depending on how bad your retention is though you may have to lower it a bit more, to like 85% or less.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] toniteixiera2007:
Hello guys! Greetings from Portugal!

I´ve installed this amazing rom without second screen (rom date: 03/09/2018) im my H990DS, with latest version of gamma kernel and everything works perfectly!!! No freezes, crashes, nothing!!! Thank you so much!!!

However i have an issue... wifi doesn´t turn on automatically (i turned on this feature even if wifi is not turned on) when i´m at home for instance... Bug? My mistake? Anyone facing same problem?

Thanks!
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] c0mpl3xy:
Thanks!
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] TheLoonyRebel:
Honestly I would recommend using the Resurrection Remix 6.1.0 second screen builds as they are more up to date on things - latest build for that is from 9/10 as opposed to the latest Lineage 15.1 build is nearly a month old.

https://androidfilehost.com/?w=files&flid=279970

Also there is new Gamma kernels available as well for second screen use that work great.

Enjoy!
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] xttapolatakettle:
Alternatively, we could forget about the SS ROMs and run an SS kernel on a non-SS ROM. I'm loving it so far!
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Sigil_Thane:
What about the notifications hidden by the notch, like incoming messages?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] joeyk240:
Apologies for the incoming novel and question I'm sure has been answered in one of these threads, I usually don't resort to posting, but I cannot find an answer to my problem in the ~700 pages I've read between here and Q/A.

Long story short, I had a scare the other night fiddling with some build.prop settings resulting in a bootloop. I had been so stupid when I got this phone at launch and flashed it I was on my Ubuntu partition which I no longer have. I never backed anything up, let alone install and get the sdk/adb working on my win10 drive. I am so lucky I was able to get it to finally boot without losing any data.

I'm on an almost 2yo ROM that has ceased in development, so I figured it's time to update. Here's what I know. I am bootloader unlocked, unencrypted, and rooted. I'm on H918, the last cmremix LOS 14 that was released, Jan 1 2017, 7.1.1. From what I can tell was compiled with sdk 25. However I'm showing "unknown" under baseband, and mbn, there's also multiple mentions of different sdks throughout different system files.

I've tried ripping apart a twrp system image backup for any mention of ARB, but to no avail. I've tried digging through multiple threads to determine a timeline when ARB was implemented, again to no avail, since I don't technically know which version I'm actually on.

Are there any adb commands or specific system file I can tear apart to determine my devices status in regards to flashing a 10p+ ROM. I've seen multiple mentions of if you're already unlocked and rooted it's much easier to keep it, but I've also seen just as many stating the opposite.

Again sorry for the novel, and asking a question I'm sure has already been answered.

EDIT: I should have mentioned that this is the ROM I have decided I would like to update to.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] xttapolatakettle:
I'm happy enough to live with that sacrifice. I either hear/feel a notification or swipe down compulsively anyway :/
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] cityneversleepz:
PM me, I'll share it with you. I use it but don't remember how I got it. So many threads.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] TripOG:
Is ac wireless working on these builds?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Omar-Avelar:
Yes it is working. My access point shows that the V20 connects at VHT80PS modes. And Android status shows a link speed of 702 Mbps here ;)
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Dick Palmer:
sounds like pre10p to me.. but don't worry, recent h918 builds of this rom test for the requisite firmware version before flash, so TWRP won't flash the wrong varient

Don't forget to flash " to-x86cpu" too ;)
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] joeyk240:
I'm 99% sure that is the case as well, but we've all seen that 1% rear its ugly head too many times.

My main concern is that I may already be on 10P+, although I'm, again, 99% sure that I am not.

LG menu has been disabled, so I cannot check that way. I keep seeing November come up when searching ARB1 implementation, if so, I should be okay. I would just like a surefire method of checking before I potentially hard brick my daily. I'm still on TWRP 3.0.0.X, so updating is going to include everything for me.

As always, I appreciate the feedback.

UPDATE: For anyone coming from a situation like mine, first, do your research, I read countless threads over and over, for weeks before taking the plunge.

First, make sure you have an ADB environment set up properly in case things go bad. Most importantly, follow the instructions to the letter. Don't be afraid of asking questions, that's what this community is here for(after doing your own research, as exhaustive as it may be).

This is how I updated from a 2yo ROM.

1) Flashed the updated TWRP recommended in the OP through TWRP (sys img --> recovery partition)

2) Reboot --> Recovery

3) Flashed "to-86cpu," Reboot --> Recovery (received an update to "official" TWRP, popup, declined)

4)Factory reset, wiped dalvik and cache

5)Flashed "PRE-10p H918," wiped dalvik and cache

6)Flashed GAPPS, again wiped dalvik and cache

7) Reboot --> System (ignored again the "official" TWRP popup)

Waited a solid half hour, maybe longer, on the "checking for updates" screen, before I figured out I had to hit the back button to decide how I wanted to backup. After I logged into my google account, everything went as a usual update does.

UPDATE II: After Everything successfully backed up, I immediately made a backup and flashed the newest SuperSU to gain full root access. As my situation only allowed root over ADB.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] TripOG:
Any tips on anything to look for, mine doesn't seem to be connecting at ac speeds
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Sigil_Thane:
Which SS kernel are you using?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] xttapolatakettle:
https://xdaforums.com/v20/development/kernel-gamma-kernel-us996-ls997-h910-t3788279/post77606639
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Grin59:
So just noticed a few issues, wifi doesn't automatically connect and when the volume steps thing are fully extended it doesn't go away unless you collapse the volume bars. Anyone else have these problems?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] H0L1D4Y:
Hi im currently on the august 3rd H910 build and wanted to upgrade to the newest version. I downloaded and flashed the lineage-15.1-20180903-X86CPU-h910.zip build. I flashed it along with Gapps and i rebooted after clearing cache. Everytime the phone would load up during the lineage animation, the phone would restart and go straight to TWRP. So i went back to the august 3rd build. Did i download the wrong version? Also can i install the Gamma zip along with it?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Grin59:
I'm guessing you did a dirty flash, for that big of a jump on the updates you're better off making a titanium backup and doing a clean flash.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] Redline:
You need to flash the "to x86cpu" zip in the downloads folder, and then the ROM, then Gamma.

---------- Post added at 04:26 AM ---------- Previous post was at 04:25 AM ----------

Not necessarily. Because of how flashing a ROM like LineageOS or RessurectionRemix works, you can be fine with dirty flashing even a major OS update, 14.1 to 15.1 for example. I've never clean flashed since coming from stock and I have no issues.
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] H0L1D4Y:
Second Screen

I did what you said but i installed the 2nd screen gamma kernel. The Second screen is showing part of the navigation bar instead of showing the icons like bluetooth and wifi. Is that how its supposed to be now or did i mess up?
[LG V20 ROMs, Kernels, Recoveries, & Other Developm] tech_infinity:
That's because you flashed 2nd screen kernel with a non-Second screen build.

Flash Second screen build and then flash 2nd screen gamma