Database Users

Temporary unofficial builds for h815

See: https://forum.xda-developers.com/g4/development/lineageos-unofficial-builds-h815-t3726177

So, one can just flash this over the most recent official build, using e.g. TWRP? I mean, one doesn't have to wipe or anything like that?
Also, just curious, how much work was it getting from the last official to this, in terms of time spent "changing code"?

Wuddelchen said:
So, one can just flash this over the most recent official build, using e.g. TWRP? I mean, one doesn't have to wipe or anything like that?
Also, just curious, how much work was it getting from the last official to this, in terms of time spent "changing code"?
Click to expand...
Click to collapse
I think you can't flash this over the latest official build, because of the different signatures. I haven't tryed it, so I don't know, but I guess it won't work.
If you try it, write back if it works or not, so that other users know
I haven't changed the code of lineage, since it works so far without changes.
It is nearly vanilla lineage, just with updated:
- security patches
- features
- proprietary blobs

Bleuzen said:
I think you can't flash this over the latest official build, because of the different signatures. I haven't tryed it, so I don't know, but I guess it won't work.
If you try it, write back if it works or not, so that other users know
I haven't changed the code of lineage, since it works so far without changes.
It is nearly vanilla lineage, just with updated:
- security patches
- features
- proprietary blobs
Click to expand...
Click to collapse
Well, you can't flash over it, that much I can tell.
I just wonder how long the official build is gonna take, the phone is "new" (empty), but still, it takes time to set stuff up after a wipe...

Wuddelchen said:
Well, you can't flash over it, that much I can tell.
I just wonder how long the official build is gonna take, the phone is "new" (empty), but still, it takes time to set stuff up after a wipe...
Click to expand...
Click to collapse
Nobody knows. The bug exists since 2017-04-30, but nothing happens. And until the bug is not fixed, we don't get new official builds.
If you want to take the time to wipe and (re)setup your device is your decision.
But if you have the time, I would recommend it, mainly because of the security updates.

Do you know that I build unofficial? https://forum.xda-developers.com/g4/development/rom-lineage-os-14-1-lg-g4-t3704019
But we are now focused on Oreo. AOSCP is ready, I should have LOS 15 done in January. Do want to help us? We can add you to our telegram group.

tulen_kobi said:
Do you know that I build unofficial? https://forum.xda-developers.com/g4/development/rom-lineage-os-14-1-lg-g4-t3704019
But we are now focused on Oreo. AOSCP is ready, I should have LOS 15 done in January. Do want to help us? We can add you to our telegram group.
Click to expand...
Click to collapse
No, I didn't know that
Uh, there is work going on? This is great! I thought the device is dead, because nothing happens anymore on the LineageOS GitHub page for it. There is still no LOS 15.0 or 15.1 branch.
Great to her that there is still developing going on
Well, I help where I can. But I'm new to Android.
I have experience with Linux, use it every day, and now I know how to build LineageOS. I also can do Java programming.
But I never developed something with Android already. So I don't know how much I can help.

Bleuzen said:
I thought the device is dead, because nothing happens anymore on the LineageOS GitHub page for it. There is still no LOS 15.0 or 15.1 branch.
Click to expand...
Click to collapse
I'm pretty sure that LG has announced they will release an official Oreo build for the G4.
Perhaps the LOS people are waiting for that to happen so they can use some of their sources as a jumping-off point for LOS Oreo? I got the impression that happens in some cases but I'm not a dev so not clear on the specifics.

Exabyter said:
I'm pretty sure that LG has announced they will release an official Oreo build for the G4.
Perhaps the LOS people are waiting for that to happen so they can use some of their sources as a jumping-off point for LOS Oreo? I got the impression that happens in some cases but I'm not a dev so not clear on the specifics.
Click to expand...
Click to collapse
Where did you read this? I never read this somewhere and I don't think that there will ever be an official Oreo build for the G4.
They not even bring Nougat to all G4s, why they should work on Oreo for this old device?
I think from LGs side, the G4 is dead.

Bleuzen said:
Where did you read this? I never read this somewhere and I don't think that there will ever be an official Oreo build for the G4.
They not even bring Nougat to all G4s, why they should work on Oreo for this old device?
I think from LGs side, the G4 is dead.
Click to expand...
Click to collapse
Hmm, perhaps I confused it with one of the other devices I had been investigating as a possible future project. (Eg, the HTC 10, LG V20, Moto Z, etc)
Someone in the following thread claimed it would happen for the G4, but others disputed it and a quick web search tends to reinforce that:
https://forum.xda-developers.com/tmobile-g4/general/android-8-0-oreo-thread-h811-t3680209
On the other hand, I think these people have released an Oreo ROM for the G4:
https://forum.xda-developers.com/g4/development/g4-cypheros-t3680102

Exabyter said:
Hmm, perhaps I confused it with one of the other devices I had been investigating as a possible future project. (Eg, the HTC 10, LG V20, Moto Z, etc)
Someone in the following thread claimed it would happen for the G4, but others disputed it and a quick web search tends to reinforce that:
https://forum.xda-developers.com/tmobile-g4/general/android-8-0-oreo-thread-h811-t3680209
On the other hand, I think these people have released an Oreo ROM for the G4:
https://forum.xda-developers.com/g4/development/g4-cypheros-t3680102
Click to expand...
Click to collapse
Yep, looks good. I already tryed Oreo but it isn't complete already. But I'm looking forward to use and recommend it as new daily driver when it's ready

Oreo

Is it possible for someone to take the oreo build from the Axon 7 and tweak it for the mini or is that wishful thinking

MrWhite0429 said:
Is it possible for someone to take the oreo build from the Axon 7 and tweak it for the mini or is that wishful thinking
Click to expand...
Click to collapse
I would suggest patience. Custom ROM development was just started on this phone a few months ago. The main dev working on it, tdm, is trying to get an official LineageOS 14.1 build (Nougat) done. It's not impossible, but I doubt it's easy because although their names are similar, they're two distinctly different devices. It'll be much easier if ZTE goes crazy and does an Oreo update for the Mini.

I wasn't expecting or demanding a working rom. I understand these things take time. I was just curious as if it may be a simple process considering the differences between devices. I have been very involved in the development forums and have been testing and reporting the builds as they are released. I am content with the current releases of custom roms.

MrWhite0429 said:
I wasn't expecting or demanding a working rom. I understand these things take time. I was just curious as if it may be a simple process considering the differences between devices. I have been very involved in the development forums and have been testing and reporting the builds as they are released. I am content with the current releases of custom roms.
Click to expand...
Click to collapse
Ah, the limitations of typed words. I didn't intend to imply you were being demanding. I'm not a developer, but I doubt we'll see Oreo on the Mini unless ZTE has an official release. I'm currently on Lineage 14.1 on the Mini and every build keeps getting better (with a few bumps along the way of course). I'll love it if I'm wrong about this of course
Sent from my Axon 7 Mini using XDA Labs

Tdm has said a while back that he may begin work on Oreo once LineageOS 15.1 nightlies begin rolling out or when the maintainer for the HTC One A9 builds Oreo for it.

JoeGatto said:
Tdm has said a while back that he may begin work on Oreo once LineageOS 15.1 nightlies begin rolling out or when the maintainer for the HTC One A9 builds Oreo for it.
Click to expand...
Click to collapse
I was in a chat yesterday with ZTE USA support, they mentioned that Oreo is in the works for the Axon 7 Mini.

oyobass said:
I was in a chat yesterday with ZTE USA support, they mentioned that Oreo is in the works for the Axon 7 Mini.
Click to expand...
Click to collapse
Nah, you won't see me going back to ZTE's stock ROM anytime soon ?

Project Treble.

So, from searching this forum it seems like people think the V20 doesn't support Treble. I've seen articles that state with Oreo it will. I am running the unofficial Los 15.1 build and downloaded the app that checks for Treble compatibility and it states my phone is treble ready though I don't have the A/B setup. Now looking at treble project builds there are many that state they are a only as well as a/b.
So, is the rooted v20 treble ready with Oreo firmware?

Also, when I do this cmd in terminal - getprop ro.treble.enabled, it returns true.

Is it possible, yes, will they do it, probably not.
You can set the boot LUN now, without Oreo, and force the phone to boot from the *bak partitions (xblbax, abootbak, lafbak, recoverybak, etc)
Notice there is one important partition missing .. bootbak. We don't have it. That would require the phone to be repartitioned, and I just don't see LG risking that.
It is hard enough to repartition a UFS NAND via a firehose, it would be insane to try it via an OTA update.
-- Brian

Thanks Brian. Guessing these treble check apps should have a big warning plastered on them for the less savvy in the android intricacies such as myself. Glad I posted before going ham on trying to install Treble roms

Actually we have xbl2 and xbl2bak that could be repurposed. They aren't actually used as part of the boot process (they are identical copies of xbl and xblbak).
However, that still leaves system. In order to have a systembak, they would have to shrink userdata which is currently 52.2G, so plenty of room, but that is VERY risky.
Again, though, this is very doable. Heck, even if they don't do it, the AOSP builds for the V20 could support it with the tweaks stated above.
-- Brian

runningnak3d said:
Actually we have xbl2 and xbl2bak that could be repurposed. They aren't actually used as part of the boot process (they are identical copies of xbl and xblbak).
However, that still leaves system. In order to have a systembak, they would have to shrink userdata which is currently 52.2G, so plenty of room, but that is VERY risky.
Again, though, this is very doable. Heck, even if they don't do it, the AOSP builds for the V20 could support it with the tweaks stated above.
-- Brian
Click to expand...
Click to collapse
So, does the V30 have all these partitions set up? It's my understanding that the V30 is definitely going to be treble supported so I'm curious if it already has these partitions in place or needs modifying (in which case I imagine some crafty bastard will be able to replicate the process).
Or along those lines, several of the supported current phones I don't believe shipped with Oreo so they had to undergo the reformatting process, I wonder if there's anything to glean from them. I'll have to see if I can wrap my head around this whole deal.

Also, is this what we are lacking? https://forum.xda-developers.com/pr.../tool-capire-le-treble-terble-vendor-t3774629

Wow, I should really drink at least 3 cups of coffee before posting.
What I was referring to was A/B system updates which I swore had a code name, but damn if I can find it now.
Anyway, yes, even Project Treble will still require repartitioning since we don't have a vendor partition (vendor is on system). Much easier to implement than A/B system updates, but I still don't think LG will do it.
We will just have to wait and see...
EDIT: good read on A/B system updates: https://source.android.com/devices/tech/ota/ab/ab_implement
-- Brian

LG may not add /vendor partition, but if you put the pieces together from some of the posts around the dev section theres work being done to add one in Lineage, though it hasnt been done yet.

runningnak3d said:
Anyway, yes, even Project Treble will still require repartitioning since we don't have a vendor partition (vendor is on system).
Click to expand...
Click to collapse
Just FWIW, Treble doesn't necessarily require repartitioning.

PhantomGamers said:
Just FWIW, Treble doesn't necessarily require repartitioning.
Click to expand...
Click to collapse
i've been following project treble for sometimes and there are lot of misunderstanding
1. having custom oreo roms doesnt mean you had treble support. it is true most treble phone coming with oreo by default
2. even if your phone has official oreo rom doesnt mean it support treble project ( like samsung S8 or note 8)
3. there are some devices with unnoficial treble support like oneplus devices but it still in development and as brian said we need repartition and needs lot of work. and your link above still on experiment.
i didnt say its impossible, but its far away for our devices not to mention we still need to dealing with ARB and lafs. just hope more devs joining on LG development and not rush them ( i saw lot of people doing that on brian's thread) . remember they did it for free while risking their devices on the process.

Loopback mounting is by far the safest method. You mess that up, and you phone just doesn't load the OS. You try and shrink a partition, and you mess up, and you could be toast. It isn't just shrinking, you also have to add a new entry to the GPT .. that is dangerous.
Also, if you do succeed, you will never be able to flash a stock ROM unless you put things back. For one thing stock system would no longer fit
-- Brian

What about this
www.getdroidtips.com/lg-v20-android-9-0-pie/

walidham said:
What about this
www.getdroidtips.com/lg-v20-android-9-0-pie/
Click to expand...
Click to collapse
Has someone tried this? Sorta feels like he just took that article and just keeps adding phone models to it without trying it.

walidham said:
What about this
www.getdroidtips.com/lg-v20-android-9-0-pie/
Click to expand...
Click to collapse
I saw that article -- and had also come across phhusson treble_experimentations on github -- and am also wondering if anyone has tried it for the LG V20, in particular the H918. LG V20 is not listed in the vendor-HAL directory of the github repo. I'd love to hear from anyone who has tried this with the H918.

stcr1 said:
I saw that article -- and had also come across phhusson treble_experimentations on github -- and am also wondering if anyone has tried it for the LG V20, in particular the H918. LG V20 is not listed in the vendor-HAL directory of the github repo. I'd love to hear from anyone who has tried this with the H918.
Click to expand...
Click to collapse
you can't just grab random drivers (that's what these HALs are) and hope they fit your device. x86cpu got close to a working treble implementation, but LG's camera drivers wern't compatible and has since put off that project and is working more on lineage 16 (pie). IF LG ever does release a stock version of pie, perhaps a newer version of the camera driver might be compatible, but perhaps not.

Phoenix591 said:
you can't just grab random drivers (that's what these HALs are) and hope they fit your device. x86cpu got close to a working treble implementation, but LG's camera drivers wern't compatible and has since put off that project and is working more on lineage 16 (pie). IF LG ever does release a stock version of pie, perhaps a newer version of the camera driver might be compatible, but perhaps not.
Click to expand...
Click to collapse
OK. Got it. So it seems that LG is going to give the V20 a Pie update. There are announcements to that affect. Assuming LG follows through, the Pie update may or may not be Treble compatible. With Oreo, device OEMs were required (??) to be Treble compatible on new Oreo devices, but could provide non-Treble Oreo updates to existing devices. That's what I gathered. So with Pie, what you are saying is that it will be the same: OEMs are not necessarily going to package Treble support in Pie updates to existing devices. But if LG does provide a Pie update, AND if the update is Treble compatible, then things will be easy-peasy for ROM developers to port their wares to it because drivers -- like the troublesome camera driver -- will be abstracted and basically have the same abstraction across all Android devices. Is that right?

stcr1 said:
OK. Got it. So it seems that LG is going to give the V20 a Pie update. There are announcements to that affect. Assuming LG follows through, the Pie update may or may not be Treble compatible. With Oreo, device OEMs were required (??) to be Treble compatible on new Oreo devices, but could provide non-Treble Oreo updates to existing devices. That's what I gathered. So with Pie, what you are saying is that it will be the same: OEMs are not necessarily going to package Treble support in Pie updates to existing devices. But if LG does provide a Pie update, AND if the update is Treble compatible, then things will be easy-peasy for ROM developers to port their wares to it because drivers -- like the troublesome camera driver -- will be abstracted and basically have the same abstraction across all Android devices. Is that right?
Click to expand...
Click to collapse
LG released oreo without treble support, LG releasing a pie update for the V20 is doubtful at best and if they do it more than likely it won't have treble support either
Sent from my LG-H910 using XDA Labs

walidham said:
What about this
www.getdroidtips.com/lg-v20-android-9-0-pie/
Click to expand...
Click to collapse
warwagon19792 said:
Has someone tried this? Sorta feels like he just took that article and just keeps adding phone models to it without trying it.
Click to expand...
Click to collapse
stcr1 said:
I saw that article -- and had also come across phhusson treble_experimentations on github -- and am also wondering if anyone has tried it for the LG V20, in particular the H918. LG V20 is not listed in the vendor-HAL directory of the github repo. I'd love to hear from anyone who has tried this with the H918.
Click to expand...
Click to collapse
I did know of someone who tried this. And it seemed to work but it never passed from the booting animation screen. He tried to go back and the phone was rendered useless. (and he was a developer). SOOOOO no.... I don't recommend attempting this.

LG V20 V995 or F800?

Hi,
I’d like to buy an LG V20.
But I’m not sure which one would be better among the two version VS995 or F800.
I will be using it as DAP only + apps, not as a calling phone.
Now I’m sure F800 got officially updated to Android 9, while I’m not sure about the VS995 which officially should only have android 8.
While on the contrary with LineageOs, the VS995 can go up to Android 10 with LineageOS 17.1 while F800 looks not.
In short, I’d like to have an updated android version, with root and have some good audiophile Rom installed on it (also viper4android look exciting).
Any suggestions?
Thanks!

Which variant to buy for custom ROM and Hi-Res Audio

I am thinking about buying a used V20 for hi-res audio since it has quad DAC. With all the variants out there, which one should I be looking for that will have the least issues with unlocking bootloaders, TWRP, custom ROM etc?
I have seen conversion posts from variants to variants, and is quite confusing when I am shopping.
Any help would be great.

I researched the same question for the exact same purpose, and decided on the US996 USA version. It was pretty painless to unlock and root the same day I recieved it last week.
If you buy one feel free to pm for tips since I just recently went through it.
Now I'm on LineageOS 18.1 with V4A and DD+ working perfectly.

I took a chance and bought a refurb US996 at Amazon, later I found the seller is from China and I hope everything will be at described.
All kinds of things can happen to phones bought from China but at least I can file A to Z if something is weird.

Good luck! It can go either way, but typically I've had good luck. I'll pm you some tips so you don't have to fight with it as much as I had to.

S
Camboozle said:
I researched the same question for the exact same purpose, and decided on the US996 USA version. It was pretty painless to unlock and root the same day I recieved it last week.
If you buy one feel free to pm for tips since I just recently went through it.
Now I'm on LineageOS 18.1 with V4A and DD+ working perfectly.
Click to expand...
Click to collapse
Sorry to hijack the thread op.
Which version of DD+ did you use and do you know if it will work on lineage 18.1?
I also have stock pie device as well as 18.1 device.

I just searched for dd+ and used the one with the newest date. I can't remember the name and I renamed it on my sdcard so I can't direct you but you'll see it. I think I searched for dolby digital A11
DD+ is not stableon 18.1 without selinux on permissive so again I searched and found a link to SELinuxModeChanger