yashsingh1/xdaforums huggingface dataset:
[LG V20 Guides, News, & Discussion] Dm4568:
Camera not work in lineage 17.1 on lg v20 h918

I made flash of lineage 17 gapps and magisk from twrp in lg v20 h918 and everything starts and works except the camera the app appears I open it is black and it closes after a moment the camera app disappears and the cameras do not work in any app any solution thanks in advance I am a novice in this
[LG V20 Guides, News, & Discussion] scottjl:
the camera doesn't seem to work on the h918 with 17.1, it hasn't worked for me since i've been using it months ago. bluetooth doesn't work as well (get a crash message as soon as the phone boots). keep hoping for a fix some day.
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
You can use the system updater which will essentially dirty flash the new build on top of the current one, this will keep all your data. Reflash gamma and may need to reflash magisk. Reflash vulkan drivers and thermal config if you previously updated them.
[LG V20 Guides, News, & Discussion] princedede:
This is my step:

Wipe cache/dalvik

Flash latest build

Wipe cache/dalvik

Flash latest gapps

Wipe cache/dalvik

Then reboot...

---------- Post added at 06:46 AM ---------- Previous post was at 06:44 AM ----------

Did you format data

Wipe cache/dalvik/data/system

Before starting??

Then after flashing los 17.1, magisk and gapps, wipe cache/dalvik. Reboot system. Set up.... Then restart device again..?
[LG V20 Guides, News, & Discussion] r33tom:
Latest 29-5 nightly for h990, following issues still exist:

* Phone freezes during charging and need a hard reset.

* Wifi random crashes

* Bluetooth mic still doesn't work

* Camera doesnt work until a reboot after flashing nightly

* GPS does not work after reboot until you turn location on and off

I've flashed the gamma kernel as it seems the only solution to fixing the freezing issue when charging.
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
I'm not having these issues, but that's probably because I only check everything after having flashed gamma and rebooting phone.
[LG V20 Guides, News, & Discussion] scottjl:
yes. and every time i go back to stock it just works fine. definitely something with lineage. fortunately this isn't my primary phone so it's not that big of a concern for me. would be nice, but not critical. i do keep trying in hopes that it works some day.
[LG V20 Guides, News, & Discussion] bgottschalk:
One interesting thing in all my attempts to get los 17.1 to boot.

I see the bouncing dot for a few minutes then the screen goes black and it reboots to twrp.

Now the interesting part is at that point the system is always unmounted. I can mount it and reboot and the same thing happens. Not sure if that means anything.

If nothing else is there a way to log the boot so I can see what the messages are when it reboots?
[LG V20 Guides, News, & Discussion] nwananka001:
Not sure what the changelog is on this one but i am tempted to dirty flash over my h918 16.0 and see if my BT headset works for phone calls
[LG V20 Guides, News, & Discussion] sajadzarepour:
H990ds latest build tested.

The Alarm clock didn't snooze by volume keys when device was locked.

The Volume Slide bar didn't show correctly when it's used.

Some times i see lag in Rom.

Waiting for solve these isuues in next build
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
Are you using gamma kernel?
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
Alright, get Franco Kernel or kernel adiutor and try setting big cores governor to interactive, see if that helps. I've been using it and notice an improvement. Also have you updated vulkan drivers?
[LG V20 Guides, News, & Discussion] sajadzarepour:
I set big governor to interactive before.

But i didn't update vulkan driver after update rom.

I'm going to update vulkan
[LG V20 Guides, News, & Discussion] x86cpu:
FYI.. USA is safe for UCL once unlocked. I have the latest us99610n.zip on my gdrive, under v20/us996. It's what I use after unlocking and before Lineage testing.
[LG V20 Guides, News, & Discussion] iLLBEATKiD:
I'm very basically versed in flashing custom ROMs but have been loving 17.1 on my H918 (stock kernel with permissive fix).

Only two issues I was wondering if anyone knows a fix for or if it's in the pipeline for future builds.

I experience bluetooth stuttering/poor connection range, but only with WiFi enabled. Toggling off WiFi completely eliminates any issues using my Creative Outlier Golds (Bluetooth 5.0) over AptX codec. I'm assuming this is related to the chip negotiating frequencies or something?

Second, I've got all sensors working solid except the IR blaster. With AnyMote it seems like my sound bar/TV recognizes the very first signal sent (lights up) but then any follow up commands to change volume and such don't register.

Any insight is appreciated as after trying LOS and replacing the thermal paste on the SOC this thing runs better than new and I don't want to go back to stock.
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
There have been some issues reported regarding Bluetooth +4.0 devices, especially when making phone calls, don't think this has been fixed yet.

In order for IR blaster to work you'll need to flash gamma kernel.

I've replaced my paste too with thermal pads and it does work pretty well, it's a simple and quick process. :good:
[LG V20 Guides, News, & Discussion] SammyKitkat792:
Hey just wanted to know which is more stable and smooth for h918, the unofficial builds provided by x86 or the official ones ? :confused:
[LG V20 Guides, News, & Discussion] Vortell:
10p is latest nougat in us996 USA.
[LG V20 Guides, News, & Discussion] r33tom:
Vol slider should get fixed next build:

https://review.lineageos.org/c/LineageOS/android_frameworks_base/+/275863/
[LG V20 Guides, News, & Discussion] princedede:
There this issue that anytime i connect to the pc I have to restart the device for it to be visible on the pc for moving of files. It has been here from day one. H910 model
[LG V20 Guides, News, & Discussion] sajadzarepour:
Not fixed in latest build
[LG V20 Guides, News, & Discussion] iLLBEATKiD:
Ok, thanks. I originally thought the gamma kernel was causing my Bluetooth issues before I discovered that turning off WiFi solved it. I'll re-flash gamma and that's like 95% of my day to day stuff solved.
[LG V20 Guides, News, & Discussion] r33tom:
with all the issues the gamma kernel fixes, why can't it be rolled in as the default kernel for the lg v20 LOS 17.1 official rom?
[LG V20 Guides, News, & Discussion] dgozalie:
Anybody know how to use quad dac with high impedence headphone in this rom ? i am using USB Audio Player for listening....
[LG V20 Guides, News, & Discussion] princedede:
Not everyone has those issues..while for some after some time using Garma kernel the issues resurfaces.. for me, i am using H910 and non of those issues happens here except in occasional cases where i have screen freezing during charging. Some people still do have that with garma kernel..
[LG V20 Guides, News, & Discussion] scottyrick:
I agree with you. Since the 5/30 release of Lineage for my H918, I no longer need the gamma kernel. In fact, the phone runs faster and more reliably without it. Also, no problem with phone lockup after charging overnight. My advice is to try Lineage 17.1 again WITHOUT gamma. You might be surprised.
[LG V20 Guides, News, & Discussion] sajadzarepour:
Before, when screen was locked the alarm clock open in full screen mode and when i pressed volume keys the alarm had been snooz . But Now in latest builds that mode changed

Anyone test it to understand my text
[LG V20 Guides, News, & Discussion] KJOM:
Hey all, I haven't been in tune with xda for awhile but I turned my V20 on and I see this thread is live. How stable is this rom so far?
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
Definitely, everyone should start off with stock kernel, for me phone runs better with gamma. I'm on h990ds
[LG V20 Guides, News, & Discussion] veeshal nepal:
Anyone?..Having prblm with boot animation?..That white bold vertical lines over boot animation looks irritating ..let's solve this ..please report us if anyone knows to solve that .white vertical bold lines over boot anination
[LG V20 Guides, News, & Discussion] r33tom:
anyone noticed the built in lineage os updater is not detecting new updates? im running the 29-5 nightly on h990n. the last update it can see is 29-5 even though there is 1-6 on lineage downloads website. I will manually flash the latest nightly 1-6 and see if it fixes.
[LG V20 Guides, News, & Discussion] r33tom:
This has been fixed for awhile now, flash to a more recent nightly and camera will work. You need to do an additional reboot after flashing for it to start working.
[LG V20 Guides, News, & Discussion] alexp1289:
I've tried the latest nightly for h910 and it wouldn't work. Are you using a special camera app like gcam? Stock open gapps camera doesn't work.
[LG V20 Guides, News, & Discussion] r33tom:
The stock cam that comes with lineage os I can't even see the app at all. I have tried a few camera apps from the Play store and the various custom gcams. They all work but the Play store apps are more stable. I am using the official Google camera from playstore right now as it is the fastest and the most stable, I also use open camera from the playstore in the event I need to use the wide angle camera.

But for me to get the camera to work everytime I flash a new update I need to do an additional reboot after it boots for the first time. Otherwise I have the issue you mention where you get a black screen and app crashes.
[LG V20 Guides, News, & Discussion] princedede:
Hello [MENTION=2881807]x86cpu[/MENTION] so i observed something on 29/05 build H910. My bluetooth speaker battery level isn't displaying. It was on 26/04 build i was using before the update... I also got the same thing when i tried other Bluetooth earphones or speakers with such function. Thanks
[LG V20 Guides, News, & Discussion] alexp1289:
I'm trying a fresh install on my other h910 maybe it's the phone itself. Did you come from nougat stock before this because that's what I've been trying. To my knowledge I have to come from nougat for everything to work. Also could it be that I also need to flash the to-x86.zip?
[LG V20 Guides, News, & Discussion] princedede:
My steps: (H910)

Format data

Wipe data/system/cache/dalvik

Install los 17.1 then wipe cache/dalvik

Install magisk. Then wipe cache/dalvik

Install gapps (nano). Wipe cache/dalavik

Reboot. Setup. Camera forceloses.

Reboot into recovery wipe cache/dalvik.

Then restart device. Camera started working well. Los camera, gcam, open camera etc..
[LG V20 Guides, News, & Discussion] alexp1289:
Just tried it and it gives black screen every time.
[LG V20 Guides, News, & Discussion] r33tom:
yeah your device definitely has a different behaviour to everyone elses, but than again the way we install the rom is also slightly different with different other side hacks that some may or may not have done.

Also have you ever tried to flash the permissive fix mentioned many threads above? Originally on the initial official release there was issues with selinux permissions which stopped a lot of the phone sensors from working including the camera. Setting selinux to permissive fixed it and whatever it did it seems to have permanently fixed it for me as going forward i have just been flashing the nightly over the existing install without ever having to set selinux to permissive again. right now it is set to restrictive and all sensors work.
[LG V20 Guides, News, & Discussion] alexp1289:
I haven't been using the permissive zip. Lineage can't see any sensors at all.
[LG V20 Guides, News, & Discussion] r33tom:
its worth flashing the permissive fix than to see if it fixes it for you, if your worry about security after flashing permissive, test your sensors and camera, if working re-flash the latest nightly to set selinux to restrictive again.

i have a feeling whatever fixes that was implemented for the phone sensors in the later builds your have to flash those builds cleanly to have them apply.

i still don't understand what differs between a dirty flash over a clean flash. Would think the main OS system files gets wiped and replaced with the latest build.
[LG V20 Guides, News, & Discussion] alexp1289:
Do you mind linking me to the permissive stuff?
[LG V20 Guides, News, & Discussion] r33tom:
was posted by eaburger:

---------- Post added at 11:51 PM ---------- Previous post was at 11:45 PM ----------

be nice if we can create a sticky to post on what works and what doesn't and the various work arounds people have found to fix the issues on the first page.
[LG V20 Guides, News, & Discussion] scottjl:
this does NOT work on a H918, tried it twice, camera still black.
[LG V20 Guides, News, & Discussion] alexp1289:
Flashing the permissive zip fixed everything. Still curious why though.
[LG V20 Guides, News, & Discussion] alexp1289:
Bluetooth isn't working when making a phone call but it does work for things like Pandora and Spotify.
[LG V20 Guides, News, & Discussion] r33tom:
Correct there is a bug raised in gitlab already. Hopefully it gets fixed. This and the random phone freeze is what's annoying me the most right now.
[LG V20 Guides, News, & Discussion] alexp1289:
Haven't had any freezes on mine yet.
[LG V20 Guides, News, & Discussion] r33tom:
yeah it seems to only affect some devices, i'm running the gamma kernel and it's much better than the stock one but still not 100% stable.

i had a quick look at the bug raised for the bluetooth calling https://gitlab.com/LineageOS/issues/android/-/issues/2007 and from the log I can see the bluetooth audio state when they take a call goes to muted:

activeBluetoothDevice: [E0:9D:FA:01:54:27], supportedBluetoothDevices: [E0:9D:FA:01:54:27]] to [AudioState isMuted: true, route: BLUETOOTH,

this will explain the issue, as i know when i use bluetooth headset to take calls i actually can't hear the dial tone either so both speaker and mic is muted.

hopefully someone who knows what their doing picks this up and can easily do a fix, probably a flag somewhere that needs to be set to false when using bluetooth for calls.
[LG V20 Guides, News, & Discussion] alexp1289:
Yeah I can't hear the phone ring or anything when I make a call over Bluetooth.
[LG V20 Guides, News, & Discussion] r33tom:
well after a bit of digging around it seems to be this audiostate.java that does the muting and un-muting of devices. comparing to LOS16 vs LOS17.1 the two files are quite different.

https://github.com/LineageOS/androi...telecomm/java/android/telecom/AudioState.java

since it is part of the core code base and not specific to lgv20, i would say all devices are potentially impacted.
[LG V20 Guides, News, & Discussion] princedede:
Hello... [MENTION=2881807]x86cpu[/MENTION] here's a bug i captured.
[LG V20 Guides, News, & Discussion] gerimis:
Don't know why every time I upgraded to 17.1 GPS won't work (both official and unofficial).

I have done it with dirty or non-dirty way... Both resulted the same, at the first boot GPS worked.

But once I went to TWRP to install magisk or gapps, GPS did not work.

I've tried to install lineage along with magisk and gapps wihtout rebooting, GPS did not work

I've tried to delete AGPS data with GPS Test App and waited for minutes, but it won't show anything.

Maybe there is issue with magisk I tried to install?

--

Update: It did not happened with Lineage 16.0
[LG V20 Guides, News, & Discussion] r33tom:
Have you tried turning location off and on again. I know my GPS does not work each time I reboot until I do that.
[LG V20 Guides, News, & Discussion] techmmai:
I have H918 as well, could you please post steps that you have taken to have successful ROM (installation and download of rom / software). My past experience with custom roms were that I had to reinstall rom continuously and that takes a lot of time. How is your experience, how long have you used this version for? Thanks
[LG V20 Guides, News, & Discussion] gerimis:
Just tried it and it does work. Thank you!
[LG V20 Guides, News, & Discussion] mehradasadi:
Hi Guys

Camera not working !
[LG V20 Guides, News, & Discussion] indyssee:
Thanks for reporting this. I was getting frustrated trying to figure out what I did wrong until I saw your post about airplane mode. For me, it would reboot to recovery if I don't do airplane mode. On the 5/31 build, I don't seem to need to change apn, just airplane mode and make a call out. Is this consistent with other vs995 users? Is there any permanent fixes? Thanks.
[LG V20 Guides, News, & Discussion] milog:
Same situation here on a VS995 :crying:
[LG V20 Guides, News, & Discussion] r33tom:
So it seems the nightly 4-6 seems to have fixed the os random freezes. I haven't needed to flash the gamma kernel.

Random wifi crashing seems to be fixed as well now.

Ir blaster does not work but I rarely use it so not a big deal.

The only thing that is annoying me now is the ability to use Bluetooth headset to make calls.

H990n
[LG V20 Guides, News, & Discussion] munirshah77:
Hope you are doing doing well. I see you have a H990N as well. I flashed the latest build of lineage OS using latest TWRP but when I boot fingerprint is not working. Is there any solution to this? I am new to this phone phone, so I am unaware of the problems going on. I hhave read the thread and read about gamma kermel. Is that something that can fix fingerprint? What are pros and cons of gamma kernel? Your help will ne highly appreciated.
[LG V20 Guides, News, & Discussion] r33tom:
Try flashing the permissive fix, it seems to fix most of the sensor issues. I posted a link to it a few posts ago.
[LG V20 Guides, News, & Discussion] munirshah77:
I flashed lineage os latest build and then flashed the permissive v4.zip from link: https://xdaforums.com/project-treble/trebleenabled-device-development/pie-erfan-gsi-ports-t3906486 & https://androidfilehost.com/?fid=6006931924117886495. But the fingerprint is still not working. Camera, screen rotation & flashlight which were not working previous are now working. Can you please provide the steps you made on your phone to get the rom working? I couldn't find the your link to permissive after going through the thread.
[LG V20 Guides, News, & Discussion] r33tom:
The one you flashed looks correct.

The way I installed it was I flashed the 2020-04-21 image as that was the only one available when I started using the official build. The finger print reader worked without any additional hacks.

Guess you can try flashing the first build over your current build than flash the latest build again.
[LG V20 Guides, News, & Discussion] munirshah77:
ok. thanks. will try it and report back
[LG V20 Guides, News, & Discussion] princedede:
[MENTION=2881807]x86cpu[/MENTION] i do get this random bug reports.
[LG V20 Guides, News, & Discussion] scottyrick:
I downgraded to stock nougat, installed Lineage 15.1, then 16, then 17.1. It is pretty stable now, after a few days of settling down. Magisk 20.4 is also installed but truly optional. It is a lot of time for the first installation process. It takes no time at all after that. Make certain you install nano-gapps after the ROM each time until you are done with the initial installation procedure.. After that use Updater built into the ROM to upgrade when you wish.
[LG V20 Guides, News, & Discussion] themailmanmiles:
If you go to the lineageOS Gerrit page, there is an open fix for the Airplane toggling. I pulled it down and compiled it myself, works like a charm. It prevents the kernel panics (or auto reboot to recovery) but you still have to remember to place an outgoing call (a separate issue I have not found an open issue for). I cant post links, but here is the path to the review.lineageos.org /c/LineageOS/android_frameworks_base/+/271789
[LG V20 Guides, News, & Discussion] mcsmart:
Hi,

I have a US996 with DirtySanta bootloader (cannot unlock officially). I've been using x86cpu's US996-DS 16.0 builds without any issues.

I'd like to clean-flash official LOS 17.1. Can I just use the official US996 build? What should I expect? Just a static noise image during bootup or is there anything else that will break?
[LG V20 Guides, News, & Discussion] vasir13:
I am pretty happy with 17.1 on 910 @ TM but for some reason whenever I make calls the connection drops to H or H+ instead of LTE and when I disconnect back to LTE. You guys know why?

I guess that is a volte issue?
[LG V20 Guides, News, & Discussion] princedede:
Yeah.. no VoLTE. I have the H910 too. So it's Normal
[LG V20 Guides, News, & Discussion] sonar77:
Bootloop after encryption

H990DS here.

After encrypting I got a bootloop. I read others two guys here with this same issue, and other guys with different LG devices and encryptetd Los 17.1. Some solutions?

---------- Post added at 05:25 PM ---------- Previous post was at 05:16 PM ----------

Has somebody flash Gamma Kernel (+ Tasha.xml and thermal fix) in a H990DS?

https://xdaforums.com/v20/development/kernel-gamma-kernel-t3940119
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
I flashed everything but Tasha, works great.
[LG V20 Guides, News, & Discussion] sonar77:
thanks. and Tasha: do you think it will work? is Tasha the same of flashable-lge-v20-tasha-xml-patch_17.1_hifidac_rev3? (https://xdaforums.com/v20/developme...0-variants-t4076549/post82481703#post82481703)
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
Rev 3 is a modified version that might give you issues . I wouldn't try it. You can give Tasha from Omar a go I don't think it gives any problems but if it does just dirty flash the ROM and you'll get the stock one again.
[LG V20 Guides, News, & Discussion] sonar77:
thanks!
[LG V20 Guides, News, & Discussion] veeshal nepal:
any one knows ? why .. the Vs 995 has stuck to 0604 .?..
[LG V20 Guides, News, & Discussion] r33tom:
There is a new build running right now

https://buildkite.com/lineageos/android/builds/24437#job-dda6ccbd-3042-48db-ab9b-198fc29d08b2
[LG V20 Guides, News, & Discussion] emanuel:
Hi, has anyone got google assistant's ok google voice activation to work? I have h990ds.

Does the google app have to be installed as system?

Thanks in advance.
[LG V20 Guides, News, & Discussion] Landloord:
Probably a slight kernel issue as it happens on enforcing selinux. I'm sure it'll be fixed in the next few updates
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
Thanks for this tutorial. This worked for me, only difference being, I was on Unofficial LOS17. 1, and didn't need to go back to nougat. Had issues with camera but all I did was a reboot and it fixed by itself.

Latest night build as of today

Latest open gapps as of today

Gamma kernel v20

Thermal config by Omar

Magisk 20.4

LG H990DS
[LG V20 Guides, News, & Discussion] Landloord:
That's great?
[LG V20 Guides, News, & Discussion] mahdimllt:
Thanks for your report. Are you experiencing any lag or slowdowns? Is it smooth like the 16.0? If it's all good I will try it right now :D
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
Official 17.1 isn't as smooth as Unofficial 17.1 which I find to be even smoother/faster than 16.
[LG V20 Guides, News, & Discussion] G U C C I:
I've been using official for the past 2 days and haven't noticed much of a difference. [MENTION=2881807]x86cpu[/MENTION] said it himself in the other thread:
[LG V20 Guides, News, & Discussion] EnterTHEvoiD:
Yeah performance is not that different to be honest, everything works for me, including android auto. I'll stick with official from now on
[LG V20 Guides, News, & Discussion] yacine oreo:
can i flash this rom directly from stock nougat, thanks for the link
[LG V20 Guides, News, & Discussion] holistone:
H918 Install over unofficial 17.1 following above. After a reboot most everything works, includinging camera and fingerprint, but bluetooth headset does not work with phone although it does work for media audio. Tried various combinations with/without Magisk_v20.4 and gamma kernel v20, but same result. I had the same bluetooth problem with unofficial. Suggestions appreciated.