[OFFICIAL] LineageOS 18.1 for the LG V20

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itt533

Member
Nov 12, 2020
34
1
chennai
yea, the stock rom checks for the impedance of the device, if it's a high impedance device it will automatically adapt into high impedance mode, if it isn't then it will work as normal mode. lineage os doesn't have that baked in. apparently, it's not trivial work to re-implement it in lineage os.
at least in LOS the problem of volume when switching on DAC must be resolved as high-impedence (200 ohm?) means greater voltage out of the audio amp. and if that happens while headphones of low impedence (16ohm typically) are plugged in it will be overloaded.

What you say sounds like there is lack of technical info for custom driver design due to proprietary bits.
 
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Aethera

Senior Member
Feb 18, 2012
236
64
Bay Area
LG V20
Samsung Galaxy Watch 4
from stock 8.0, reboot to bootloader, fastboot oem unlock, then you can use dirtycow (unpatched on newest firmwares) to get root and flash your recovery - there are a plethora of other exploits that work to root the device.
You can alternatively simplify all of this with lglaf (https://gitlab.com/runningnak3d/lglaf) - but the point is, a lot of the guides here on XDA needlessly complicate this whole process.
I tried dirtycow on 10u and it failed at the logcat -s recowvery step. I ended up creating a mAID usb stick and using the lglafsploit on 10p.
 

andruyd

Senior Member
Dec 14, 2011
139
10
LG V20
Huawei MediaPad T5
at least in LOS the problem of volume when switching on DAC must be resolved as high-impedence (200 ohm?) means greater voltage out of the audio amp. and if that happens while headphones of low impedence (16ohm typically) are plugged in it will be overloaded.

What you say sounds like there is lack of technical info for custom driver design due to proprietary bits.
I'm in no position to discuss this meaningfully lol(I don't have the know how). I'm very grateful for what we have from the LOS devs.
 

nostupidthing

Senior Member
Nov 1, 2012
1,102
269
It can do two SIMs, I installed LOS on both a H990N and H990DS
OOOOOOOOOHHHHHHHHH I already got a H910 and waiting for arrival..... BUT I still need one more, would you mind if I ask for a screenshot to confirm? If yes I'll definitely get a H990DS for the next one!!!!!!!!!!!!!!

THANKS!!!!!!!!!!!!!!!!!!!!!!!!
 

nostupidthing

Senior Member
Nov 1, 2012
1,102
269
It can do two SIMs, I installed LOS on both a H990N and H990DS
BTW the installation process is the same right????????
 

mathew2214

Member
Mar 31, 2019
21
5
just purchased an LG v20 US996. waiting for shipping. how easy of an unlocking/installation process can i expect when trying to install this ROM from up-to-date stock?
 

andruyd

Senior Member
Dec 14, 2011
139
10
LG V20
Huawei MediaPad T5
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stingbandel

Senior Member
Nov 23, 2005
400
42
Can someone confirm me if the buletooth mic volume is normal when doing a conference call? Is it too low that people.barely able to hear? Thanks
 

andruyd

Senior Member
Dec 14, 2011
139
10
LG V20
Huawei MediaPad T5
Can someone confirm me if the buletooth mic volume is normal when doing a conference call? Is it too low that people.barely able to hear? Thanks
Bluetooth volume works normally in my experience. The volume issues I've experienced is with wired headphones/headsets. The volume on calls out the 3.5mm jack is very loud even at the lowest setting.
 
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stingbandel

Senior Member
Nov 23, 2005
400
42
I need to know the mic when we talk, do the other end can hear us? I am on lighthouse and the other end cannot hear me when I call them using.bluetooth headset…
 

Aethera

Senior Member
Feb 18, 2012
236
64
Bay Area
LG V20
Samsung Galaxy Watch 4
just purchased an LG v20 US996. waiting for shipping. how easy of an unlocking/installation process can i expect when trying to install this ROM from up-to-date stock?
I'm using an h918 so not sure if this info will work on your model:

I used lafsploit on a freshly flashed 10p KDZ. Used these instructions with a mAID USB system. For flashing 10p KDZ I used modified LGUP 1.16 using these patches (using the "Refursbish" option in LGUP not the "Upgrade" one.).

Also note that when you run lafsploit from the mAID system prior to to running 'git pull' you first have to run 'git init'. After TWRP is flashed to bootloader you might want to flash the laf restore .zip to get the original LAF back which might be useful if you ever plan to do more KDZ flashing or sell the phone.

One other thing I noticed recently - it seems like after applying the latest LOS update from the Updater that it's necessary to go back into TWRP and wipe Dalvik/cache and cache. Otherwise eventually the phone starts crashing.
 
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DouJinFlip

Member
Oct 16, 2010
21
3
LG V20
Samsung Galaxy Tab S5e
BTW the installation process is the same right????????
Yes, just make sure you flash in an old enough stock ROM to get the process started. So far I've seen H990DS and H990N builds are perfectly compatible with each other, since nobody seems to touch the Modem part which is the only real difference between the two (they're physically optimized for different LTE frequencies, though there's a lot of overlap too).
 

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A.Whit

Senior Member
Jul 11, 2021
57
13
I think I've found the unicorn of gcam apps. For LG V20/LOS 18.1. MGC_8.1.101_A9_GV1u_ENG.apk from here: https://www.celsoazevedo.com/files/android/google-camera/dev-bsg/f/dl55/
Video works on Selfie and back cam. Photos work on Selfie and back cam. No special files needed to make things work.



 

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  • 1
    what is a work around to delet or disable the
    "fusedlocation" spyware?

    i do not want that on anyphone i own. there are a few roms i can disable that with but lineage 18 is now softbricked if i delete that spyware.

    i totally understand many people want it.
    i do not want it.
    It is a core part of Android, and not removable.

    It is not spyware. You can go look at the source.
    This is gonna sound silly at this point but here goes: I was never sure how the DAC toggle works. Is it the same as stock roms where it turns it on but with the difference that high impedance is always on?
    Same as stock.
    1
    Can you try lineage recovery? I don't think this would happen there.
    Yes i can test it. I will let you know. Thanks for your effort.
    1
    Does anyone know if LOS 19.1 will be available for the LG V20?
    1
    Does anyone know if LOS 19.1 will be available for the LG V20?
    Nope. Kernel is 3.18 which can't ever properly work with android S.
    1
    18 is bad. does not work correctly. i was stupid and jumped the gun & made my edc 18. now i am dieing to get back to what worked correctly (17 works) . but 17 just reboots back to the os over and over since i put 18 on it
    Then you're doing something wrong. It works for everyone else. Follow the guide from 0 and it will work.
  • 23
    lineage-os-logo.png

    LG V20

    Code:
    - Your warranty is now void.
    - You have been warned.
    - Use at your own risk.

    Introduction:
    This is the Official Lineage OS 18.1 thread for the LG V20.

    Downloads:
    Please follow the install instructions in your device's Wiki page linked below exactly, and make sure your device's firmware matches the required firmware listed.
    If you don't follow these instructions, or use 3rd party add-ons (like Magisk) please don't expect support here.

    Known Bugs:
    • IMS (VoLTE/Wi-Fi Calling) doesn't work due to framework tie-ins used by the LG proprietary binaries.
    • Find any? Report them according to this guide.
    Notes:
    • The only supported GApps package at the moment is MindTheGapps, linked on our Wiki page about gapps.
    Kernel Source: https://github.com/LineageOS/android_kernel_lge_msm8996
    6
    On my LG v20 H910 with LOS 18.1 lineage-18.1-20210722-nightly-h910-signed.zip
    (nothing else installed, no gapps, no mods, no root, etc...) the "LOS SNAP CAMERA" VIDEO record sound volume is almost 0%

    SAME ISSUE ON Lg v20 H918 !!!!!!! I have that phone also.

    After days of research and playing with mixer_paths_tasha.xml settings I gave up..... PROBLEM VERIFIED: its a LOS snap camera apk issue.

    Then I installed ROM [android 11] UNOFFICIAL SuperiorOS-Xcalibur

    https://forum.xda-developers.com/t/...96-11-unofficial-superioros-xcalibur.4248255/

    COMING FROM LINEAGE/RR:

    1. Boot into twrp
    2. Do a regular wipe (not format)
    3. Flash Superior zip
    4. Flash magisk (optional but recommended)
    5. Wipe dalvik
    6. Reboot

    CAMERA VIEDO WORKS PERFECT !!!!
    PERFECT SOUND !!!



    To LOS maintainers: Fix the LOS SNAP CAMERA apk or quit screwing around with programming android ROMs. Simple as that. I am a MSEE engineering manager and if I cant do my job right I don't do it at all.


    The LOS snap camera has been broken for a very long time (years) and many people have had to use GCAM or Open Camera and all these people including myself are sick that LOS maintainers can't fix a simple but very important apk in LOS (CAMERA video sound issue). This is well documented all over LOS wiki and github etc.....

    FROM: bernardobas, Senior Member


    "Hi @npjohnson
    Open Camera (and BSG GCam 8.1) uses unprocessed-mic by default to get audio while recording video."


    I am done with LOS until this is fixed. YOU ARE WASTING MY TIME
    Yeah, considering h910/h918 are near identical, makes sense that they both suffer.

    By your own statement, you're an engineer, and should be able to discern based on the info you gave me that it is _not_ an issue with the "Snap Camera apk", instead that we are using compressed audio path, and clearly it isn't processing right (likely a codec issue like I mentioned several posts ago). We could swap it to unprocessed mic input, but that will be garbled and awful - only using that as a last resort as opposed to actually fixing the compressed audio route.

    As for the insults launched - k, stop using lineage then. I literally have not a care in the world whether you use it. I'm doing hard work for free, which, as an engineer, you should understand is often thankless, and your naggy/attacking comments only make me want to never touch the device again :)

    I'll be looking at it sometime this week, but for everyone else on this thread who has been kind and supportive lol.
    5
    On my LG v20 H910 with LOS 18.1 lineage-18.1-20210722-nightly-h910-signed.zip
    (nothing else installed, no gapps, no mods, no root, etc...) the "LOS SNAP CAMERA" VIDEO record sound volume is almost 0%

    SAME ISSUE ON Lg v20 H918 !!!!!!! I have that phone also.

    After days of research and playing with mixer_paths_tasha.xml settings I gave up..... PROBLEM VERIFIED: its a LOS snap camera apk issue.

    Then I installed ROM [android 11] UNOFFICIAL SuperiorOS-Xcalibur

    https://forum.xda-developers.com/t/...96-11-unofficial-superioros-xcalibur.4248255/

    COMING FROM LINEAGE/RR:

    1. Boot into twrp
    2. Do a regular wipe (not format)
    3. Flash Superior zip
    4. Flash magisk (optional but recommended)
    5. Wipe dalvik
    6. Reboot

    CAMERA VIEDO WORKS PERFECT !!!!
    PERFECT SOUND !!!



    To LOS maintainers: Fix the LOS SNAP CAMERA apk or quit screwing around with programming android ROMs. Simple as that. I am a MSEE engineering manager and if I cant do my job right I don't do it at all.


    The LOS snap camera has been broken for a very long time (years) and many people have had to use GCAM or Open Camera and all these people including myself are sick that LOS maintainers can't fix a simple but very important apk in LOS (CAMERA video sound issue). This is well documented all over LOS wiki and github etc.....

    FROM: bernardobas, Senior Member


    "Hi @npjohnson
    Open Camera (and BSG GCam 8.1) uses unprocessed-mic by default to get audio while recording video."


    I am done with LOS until this is fixed. YOU ARE WASTING MY TIME
    Maybe you should go back to stock? You do realize we do this for free and on our own time? If there are any issues we try to fix them ASAP but with your comments I doubt @npjohnson is going to want to support the device anymore. If there is any issue I would recommend reporting it in a less-hostile way and it might be a simple fix rather than insulting the primary dev for LOS on the device who may now not want to support the device anymore...
    4
    Moderator Announcement

    Thread slightly cleaned!

    This is a development site and people contribute work as a fun hobby, NOT A JOB! They don't owe you anything but you owe the developers respect!
    If a ROM does not work for you, what did you do to contribute? Did you clean flash? More important, did you run a log of errors to help the developer? Just remember what you would expect in your profession. Or were you just too lazy to help and prefer to leech and complain?
    This world will only get better if we all learn to give instead of always taking! Please do not comment on rude posts, please report and a moderator will help.
    Thank you all for your cooperation.

    Regards
    Oswald Boelcke
    Senior Moderator
    3
    Will you working on Lineage OS 19?
    Lineage OS 19 is based on Android 12, so the chance of it even booting on the current 3.18 kernel is very slim, we'll need to update a lot of things including a major kernel version bump to reach a reasonable state to port anything Android 12 so it will likely take a while. Even kernel 4.4 still requires a ton of patching to be able to boot android 12