[OFFICIAL] LineageOS 18.1 for the LG V20

[andruyd]

test

If you plug in your headphone then turn off the DAC with Lineage's toggle it should remain off even if you replug the headphone.

interesting. i didn't know it works like that. is that how the lg v20 stock rom worked? i always found the sound quality to be subpar when the option was off in stock or lineage. i thought the toggle is actually for the dac/amp combo. i use pretty good iems too (moondrop blessing 2, jh13v2).

 

[npjohnson]

Downloaded the latest Sept. 30th build this morning for h918, and it errored out, had to do a factory reset. Come to find out, it also replaced my TWRP with it's own LineageOS recovery (thought I had that disabled). Was not expecting that, and it's pretty clunky and awful. Not happy.

Edit: So I'm still using the Sept. 30th build and my phone really seems to be struggling to get location data, and my net speeds seem to be on the slow side. I have 1Gbps fiber, and typically get about 450 down on 5 Ghz, I'm pulling about 130 currently. In Google Maps, it puts me in the middle of the ocean, GPS errors in Pokemon Go and GasBuddy (which I use to find the cheapest fuel around me). Never had any issues like this until this build. I may go back to the one I had from about 2 weeks ago and see if my issues persist now; that one seemed perfectly fine then.

I don't know what you're doing - but builds DO NOT replace recovery - the only case it does this is if you enable it in SUW to do so. It defaults to off.

It does what a recovery needs to do - update your phone and let you reflash in emergencies - security in mind so as not to be able to access user-data.

 

[megamorphg]

Any foolproof instructions to go from LOS 17.1 official to 18.1 official? Dirty flash + MindtheGapps, permissive and root ?
I really want to be able to keep my data and current functionality without starting fresh.

Is there any major things broken in 18.1? And any important things fixed? Camera only my 17.1 really sucks, freezes up frequently.

Wish the author of the thread would update the 1st thread with the nuggets, hard to go through 20 pages.

 

[itt533]

plug in headphones?

yes! But i'm noticing that when the DAC is ON, the sound is really loud and significant background noise starts. I think that this is also switching ON the high impedance mode. That means that the audio amplifier might get damaged.

 

[npjohnson]

yes! But i'm noticing that when the DAC is ON, the sound is really loud and significant background noise starts. I think that this is also switching ON the high impedance mode. That means that the audio amplifier might get damaged.

I'll look into it.

 

[A.Whit]

On LG v20 H910 and H918, current LOS 18.1, no root, no added/changed kernel, problem:

When placing or receiving a phone call and selecting SPEAKER on LG v20 speaker sound from call is OK on LG v20 but sound on other end (landline or cell) there is too HIGH of base and hardly no treble thus other person can not understand conversation. Distortion/noise also present. Quality is horrible and cannot use SPEAKER mode on phone call.

This is a MIC problem on the LG v20. Yes there are several MICs on LG v20 and from what everyone is posting from LOS 18 and even LOS 17 this has been a problem for a very long time. Possible that SPEAKER function is using top MIC rather than MIC at bottom of phone or MICs not working as designed with stock ROM.

I am guessing possible affected files are:
/system/build.prop file
and or
/sysyem/vender/etc/mixer_paths_tasha.xml file
or other files

Anyone has same experience ? ? ?

 

[itt533]

is there a way to get stereo while recording video?

gamma kernel will allow IR blaster for both emitting and receiving? It should be mentioned that this device also records IR codes from other remote controls.

Is there any feature that will be lost with gamma kernel? greater power draining?

 

[Draknodd]

Am I the only one who gets crazy high battery draw in idle? I lost 30% of battery over night, from battery stats the only cause was "Android system"

 

[itt533]

Am I the only one who gets crazy high battery draw in idle? I lost 30% of battery over night, from battery stats the only cause was "Android system"

what apps do you have?

 

[aCIDsLAM]

Am I the only one who gets crazy high battery draw in idle? I lost 30% of battery over night, from battery stats the only cause was "Android system"

Same here. Compared to LOS16, it drains the battery in idle real quick.

 

[Draknodd]

what apps do you have?

The battery drain is not from third party apps. But from OS.
Made a backup with Migrate, clean flash of Lighthouse ROM, restored the migrate backup and I went from >30% drain over a night with LOS to 2% drain after 24 hours on Lighthouse.
Problem solved

 

[A.Whit]

UPDATE: "phone call using SPEAKER icon during a call":

I decided to backtrack and verify if LOS 18.1 has broken phone call speaker feature. VERIFIED !

On my LG v20 H910 this is what I did:

- Cross-Flash: US99610f_00_1205.kdz using PARTITION DL using LGUP. Select ALL. 100% stock
- After flash, factory reset via POWER and VOL up key (necessary to boot up)
- To get cell and data to work on your H910, after booting fix this by going to the dialer, and dialing *#546368#*996#, SVC Menu, and doing the Factory Reset. After another boot and setup cell and data now works.
- Place a phone call and put SPEAKER ON
- Sound quality on both ends are PERFECT !
Note: STOCK ROM in speakerphone mode uses TOP MIC on LGv20; non speakphone mode it uses BOTTOM MIC

Where things break:

after above...
1) Unlock bootloader
2) Install/flash TWRP
3) Iinstall/flash lineage-18.1-20210930-nightly-h910-signed.zip
4) Install/flash compatible modem MPSS.TH.2.0.1.c3-00045-M8996FAAAANAZM-1 (absolutly necessary to prevent kernal crash)
4) Boot up and setup LOS

When placing or receiving a phone call and selecting SPEAKER on LG v20, speaker sound from call is OK on LG v20; but sound on other end (landline or cell) there is too HIGH of base and hardly no treble thus other person can not understand conversation. Distortion/noise also present. Quality is horrible and thus cannot use SPEAKER mode on phone call.

This is a MIC problem on the LG v20. Yes there are several MICs on LG v20 and from what everyone is posting from LOS 18 and even LOS 17 this has been a problem for a very long time. Possible that SPEAKER function is using incorrect MIC. (Unverified: One dev engineer said LG uses TOP speaker/Ear Speaker for MIC if on a SPEAKER CALL. maybe ????)

Anyone has same problem?

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

Solution for LOS ( it worked for camera audio apk )

reference:
reddit.com/r/lgv20/comments/dqfskw/i_finally_found_how_to_record_clean_stereo_audio/

1) Verify speakerphone in LOS uses TOP MIC
I just verified speakerphone is using all 3 MICs. Thats a problem = Lots of NOISE ! Make changes to use TOP MIC only.

2) SET PHONE/DIALER apk to use UNPROCESSED mode for TOP MIC when using speakerphone mode. ALL Programs (in this case phone DIALER) "which use the UNPROCESSED mode (MIC input) give superior audio quality. Note that this mode is pretty quiet, as the other modes do some adjustable gain. Since the V20's mic has a wider dynamic range than usual, and it doesn't actually let you capture at 24-bit, you would get a higher noise floor than on another phone with 16-bit recording, assuming the same quality of mic, amp, etc. just a different gain before the ADC."

 

[npjohnson]

is there a way to get stereo while recording video?

gamma kernel will allow IR blaster for both emitting and receiving? It should be mentioned that this device also records IR codes from other remote controls.

Is there any feature that will be lost with gamma kernel? greater power draining?

I'll say it again, if anyone just links me the changes needed, I can get them put into the official kernel.

 

[A.Whit]

I'll say it again, if anyone just links me the changes needed, I can get them put into the official kernel.

Speakerphone mode while in a phone call:

Solution for LOS ( it worked for camera audio apk )

reference:
reddit.com/r/lgv20/comments/dqfskw/i_finally_found_how_to_record_clean_stereo_audio/

1) Verify speakerphone in LOS uses TOP MIC
I just verified speakerphone is using all 3 MICs. Thats a problem = Lots of NOISE ! Make changes to use TOP MIC only.

2) SET PHONE/DIALER apk to use UNPROCESSED mode for TOP MIC when using speakerphone mode. ALL Programs (in this case phone DIALER) "which use the UNPROCESSED mode (MIC input) give superior audio quality. Note that this mode is pretty quiet, as the other modes do some adjustable gain. Since the V20's mic has a wider dynamic range than usual, and it doesn't actually let you capture at 24-bit, you would get a higher noise floor than on another phone with 16-bit recording, assuming the same quality of mic, amp, etc. just a different gain before the ADC."

 

[npjohnson]

Speakerphone mode while in a phone call:

Solution for LOS ( it worked for camera audio apk )

reference:
reddit.com/r/lgv20/comments/dqfskw/i_finally_found_how_to_record_clean_stereo_audio/

1) Verify speakerphone in LOS uses TOP MIC
I just verified speakerphone is using all 3 MICs. Thats a problem = Lots of NOISE ! Make changes to use TOP MIC only.

2) SET PHONE/DIALER apk to use UNPROCESSED mode for TOP MIC when using speakerphone mode. ALL Programs (in this case phone DIALER) "which use the UNPROCESSED mode (MIC input) give superior audio quality. Note that this mode is pretty quiet, as the other modes do some adjustable gain. Since the V20's mic has a wider dynamic range than usual, and it doesn't actually let you capture at 24-bit, you would get a higher noise floor than on another phone with 16-bit recording, assuming the same quality of mic, amp, etc. just a different gain before the ADC."

Feel free to push up a patch, the wiki has great detail on how to do so.

ButI was referring to the IR changes in Gamma kernel.

 

[mehsme]

Having issues with VS995 (Verizon) with connecting & staying on LTE networks with the default APN settings.
When my "preferred network type" is set to the default (LTE/CDMA/EvDo/GSM/WCDMA), it only connects to 3G.
When set to "LTE", it connects to the 4G/LTE network just fine, BUT, my mobile connection (phonecalls/texts etc. ) stops working.

Tried resetting APN settings, re-seating the SIM card, etc., but I seem to forever be stuck with a slower network speed.

Wondering if anyone else has had similar issues, or if anyone has any tips on resolution.

 

[A.Whit]

Having issues with VS995 (Verizon) with connecting & staying on LTE networks with the default APN settings.
When my "preferred network type" is set to the default (LTE/CDMA/EvDo/GSM/WCDMA), it only connects to 3G.
When set to "LTE", it connects to the 4G/LTE network just fine, BUT, my mobile connection (phonecalls/texts etc. ) stops working.

Tried resetting APN settings, re-seating the SIM card, etc., but I seem to forever be stuck with a slower network speed.

Wondering if anyone else has had similar issues, or if anyone has any tips on resolution.

Yes, I have had same issue on H910
and
- speakerphone not working
- phone getting too warm / hot
- phone reboots randomly (not often but once in a while)
- other issues

So I flashed stock US99620f_00_1120 on my H910 and now very happy with no ATT garbage apks and everything on phone works perfect.

LOS is not even close to being ready for daily use. {Mod edit} And I understand that some orrigional source code is not available which I being an engineer understand is a huge problem.

Only reason why I have 5 LG v20 phones (H910 and H918) is because I like the ability to change battery to larger size and I dont need or want the "newer phones".

 

[elimoviebuff]

Did a fresh install on an h918 of lineage-18.1-20210408-nightly-h918 with TWRP 3.5.2_9-0-h918, MindTheGapps-11.0.0-arm-20210328_143701, and Magisk v.22.1 and everything is working smoothly.

do you have root access also?

Having issues with VS995 (Verizon) with connecting & staying on LTE networks with the default APN settings.
When my "preferred network type" is set to the default (LTE/CDMA/EvDo/GSM/WCDMA), it only connects to 3G.
When set to "LTE", it connects to the 4G/LTE network just fine, BUT, my mobile connection (phonecalls/texts etc. ) stops working.

Tried resetting APN settings, re-seating the SIM card, etc., but I seem to forever be stuck with a slower network speed.

Wondering if anyone else has had similar issues, or if anyone has any tips on resolution.

Its a compatibility issue. I had a similar problem running a certain version of lineage on my SM-N910T. You can try a different version but other than that I know of no way to fix it

 

[mehsme]

Its a compatibility issue. I had a similar problem running a certain version of lineage on my SM-N910T. You can try a different version but other than that I know of no way to fix it

For other readers out there, its worth noting I've had zero issues with mobile/data settings for months up until during a brief vacation. I wouldn't call it a compatibility issue quite yet. Feels like it's fixable, I could go nuclear and start from scratch I suppose.

Yes, I have had same issue on H910
and
- speakerphone not working
- phone getting too warm / hot
- phone reboots randomly (not often but once in a while)
- other issues

So I flashed stock US99620f_00_1120 on my H910 and now very happy with no ATT garbage apks and everything on phone works perfect.

LOS is not even close to being ready for daily use. And I understand that some orrigional source code is not available which I being an engineer understand is a huge problem.

Only reason why I have 5 LG v20 phones (H910 and H918) is because I like the ability to change battery to larger size and I dont need or want the "newer phones".

I've been daily driving LOS for several months, its been relatively stable as far as a 6 year old device goes. I'm quite pleased with it!

No offense A. Whit, but you seem to have mentioned great displeasure in the work of FOSS developers more than once in this post (and that you're an engineer?). Maybe its time you move on from the community or consider contributing back?

 

[Aethera]

do you have root access also?

Yes