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Will it be easy to install custom ROMS on the P20 family?

Hi,
I've been using Nexus phones for years, and I'm thinking of buying a phone from the P20 family. I don't really like the version of Android that Huawei ships though, and I'd like to be able to install a stock ROM. I assume that this phone will have Treble support (since it shipped with Oreo) and that, because of that, it should be easy to install a custom ROM on it.
Is all of this correct? Will it be easy to install a custom ROM on these phones, or should I go for a different phone?

I'm also considering buying a P20 Lite tomorrow, how was custom ROMs development on P9 Lite and P10 Lite ?

Judging from the ROM development for the Mate 10 series and as it normally is for Huawei phones, it is not very likely that there will be that many ROMs specifically designed for the P20 phones.
However, installing Treble based ROMs should not be a problem at all. There are several such ROMs available, including AOSP, Lineage, Resurrection Remix, CarbonROM etc. The downsize is that these are often very generic ROMs and Huawei specific features may not be available. For example, third party camera apps often have inferior performance compared to the stock camera app. Sometimes these apps are ported over though.

Thanks for your answer!
mrabcx said:
Judging from the ROM development for the Mate 10 series and as it normally is for Huawei phones, it is not very likely that there will be that many ROMs specifically designed for the P20 phones.
However, installing Treble based ROMs should not be a problem at all. There are several such ROMs available, including AOSP, Lineage, Resurrection Remix, CarbonROM etc.
Click to expand...
Click to collapse
So, we can take any Treble based ROM and installed it on any Treble enabled phone, and it will work? Don't specific phones need specific ROMs anymore?
mrabcx said:
The downsize is that these are often very generic ROMs and Huawei specific features may not be available. For example, third party camera apps often have inferior performance compared to the stock camera app. Sometimes these apps are ported over though.
Click to expand...
Click to collapse
Let's say I install an AOSP ROM and use Google Camera. Should I expect it to take bad pictures, or are you referring to something else when you say inferior performance?
Probably dumb questions, but I've been out of the ROM scene for years.

frandavid100 said:
So, we can take any Treble based ROM and installed it on any Treble enabled phone, and it will work? Don't specific phones need specific ROMs anymore?
Click to expand...
Click to collapse
Yupp, that's pretty much the basic idea. Check out the following thread for more about project Treble.
https://forum.xda-developers.com/project-treble
frandavid100 said:
Let's say I install an AOSP ROM and use Google Camera. Should I expect it to take bad pictures
Click to expand...
Click to collapse
The thing here is that the stock ROM may nevertheless contain vendor specific code which is not released and may have other proprietary conditions on it. The Google Camera may thus not return the same quality as the stock one. This has at least been the case for Huawei phones, although the stock camera app has been ported over (see the thread above).

I just unlocked the boot loader on my P20 Lite, now waiting patiently for a custom recovery

Custom ROMs are not very likely in Huawei devices

Hi all
Also been using Nexus for quite some time now, and bought a Huawei P20 lady week.
1. The camera is great
2. EMUI is not my cup of tea
My goal the coming weeks is to try to understand if it's likely to see a Treble ROM and if the camera app from EMUI/P20 can be ported.
Tldr; I want to keep the camera functionality but use stock android 8.x
Anyone find anything, please post
Peace ✌?

Kaherdin said:
Hi all
Also been using Nexus for quite some time now, and bought a Huawei P20 lady week.
1. The camera is great
2. EMUI is not my cup of tea
My goal the coming weeks is to try to understand if it's likely to see a Treble ROM and if the camera app from EMUI/P20 can be ported.
Tldr; I want to keep the camera functionality but use stock android 8.x
Anyone find anything, please post
Peace
Click to expand...
Click to collapse
The camera app should be possible to port. It has been done in the past for both Kirin 960 and 970. Check this out for reference. In that thread the camera is based on the one from Mate 9 but in theory a newer one should be possible.

LineageOS 15.1 Treble Rom ?

Still unsure if I should buy Mi Mix 2S or Oneplus 6
For me a working LineageOS 15.1 ROM are essential. With Treble this should be working already but it's pretty quiet in ROM section.
Anybody has it running ?

https://www.xda-developers.com/qualcomm-snapdragon-845-kernel-source-code/
I guess devs are waiting for this to build device-specific roms.
Some users have reported treble working with some bugs.. And there wont be any device-specific roms until the sources appear on CAF. That will happen soon.

If you need a big developer community I would go for the 1+6, if not the 2s wins (at least for me) because no notch and maybe a better camera(still waiting for tests here)

Phoost said:
Still unsure if I should buy Mi Mix 2S or Oneplus 6
For me a working LineageOS 15.1 ROM are essential. With Treble this should be working already but it's pretty quiet in ROM section.
Anybody has it running ?
Click to expand...
Click to collapse
Treble device development is discussed here, some people reported that treble roms on our phones are working fine with minor bugs (screen blinking on lock/unlock, no support for second camera). I am yet to test these, since my mix 2s is still awaiting bootloader unlock.

Flatric said:
If you need a big developer community I would go for the 1+6, if not the 2s wins (at least for me) because no notch and maybe a better camera(still waiting for tests here)
Click to expand...
Click to collapse
Have seen some relatively direct comparisons and the mix clearly has the better camera.

Im also keen to see a Lineage OS build but havent seen much discussion on it or heard any devs that are working on it. I have just onlocked and rooted my phone after waiting the 15 days.
I wonder when more Mi Mix 2s enter the global market, developers have waited 15 days to unlock phones and source code released from Qualcomm that we will see more activity on custom roms.

You can install lineage via treble right here https://forum.xda-developers.com/pr...evice-development/lineage-phh-treble-t3767690

aeppacher said:
You can install lineage via treble right here https://forum.xda-developers.com/pr...evice-development/lineage-phh-treble-t3767690
Click to expand...
Click to collapse
Yes, I am aware of that but certain features of the Mi Mix 2s do not work with this version (dual camera for example)

andyphone said:
Im also keen to see a Lineage OS build but havent seen much discussion on it or heard any devs that are working on it. I have just onlocked and rooted my phone after waiting the 15 days.
I wonder when more Mi Mix 2s enter the global market, developers have waited 15 days to unlock phones and source code released from Qualcomm that we will see more activity on custom roms.
Click to expand...
Click to collapse
It took almost 6 months for the Mi Mix 2 to get decent, stable, bugfree custom AOSP roms. Now they have plenty. I guess we will just have to be patient.
Would be nice to get some custom MIUI roms in the meantime though

Firipu said:
Would be nice to get some custom MIUI roms in the meantime though
Click to expand...
Click to collapse
Yeah, some custom MIUI roms would be nice. I couldnt get the EU one working on my device.

Firipu said:
It took almost 6 months for the Mi Mix 2 to get decent, stable, bugfree custom AOSP roms. Now they have plenty. I guess we will just have to be patient.
Would be nice to get some custom MIUI roms in the meantime though
Click to expand...
Click to collapse
Mix 2 didn't get source code for a very long amount of time.

Firipu said:
It took almost 6 months for the Mi Mix 2 to get decent, stable, bugfree custom AOSP roms. Now they have plenty. I guess we will just have to be patient.
Would be nice to get some custom MIUI roms in the meantime though
Click to expand...
Click to collapse
If you take a look here:
https://www.xda-developers.com/qualcomm-snapdragon-845-kernel-source-code/
You will know when it will be possible for devs to start working on our device

I'm new to this treble topic and have a few questions.
Those ROMs are intended to be flashed on ANY device being delivered with Android 8 or higher, right?
I read that some functions will not work as they are not a part of the treble environment. Can anyone tell me which parts of he phone this could on our model?
Has anyone already flashed the pixel experience rom on a Xiaomi MiMix2S? Will anything be broken? E.g. Bluetooth, WiFi, camera, storage?
The kernel is already published if I read that correctly, so it´s just a matter of time before any stock aosp roms will come to our devices, right? Can´t wait - and get rid of MIUI!
Need advice!
Best regards

kleinholzinferno said:
I'm new to this treble topic and have a few questions.
Those ROMs are intended to be flashed on ANY device being delivered with Android 8 or higher, right?
I read that some functions will not work as they are not a part of the treble environment. Can anyone tell me which parts of he phone this could on our model?
Has anyone already flashed the pixel experience rom on a Xiaomi MiMix2S? Will anything be broken? E.g. Bluetooth, WiFi, camera, storage?
The kernel is already published if I read that correctly, so it´s just a matter of time before any stock aosp roms will come to our devices, right? Can´t wait - and get rid of MIUI!
Need advice!
Best regards
Click to expand...
Click to collapse
Main features are all fine, you will find camera not great and 2nd camera not supported, most report treble ROMs having not great battery. But it will work.
M.

Thanks for the advice!
I think I'll wait for now until the Devs work their magic and publish a stable version with all the bells and whistles!
Is there any possibility to install a stock treble rom and install the camera APK afterwards? Would this work?

kleinholzinferno said:
Is there any possibility to install a stock treble rom and install the camera APK afterwards? Would this work?
Click to expand...
Click to collapse
It will not work. The functionality of the camera is not just related to the APK but also depends on framework and libraries.

kleinholzinferno said:
I'm new to this treble topic and have a few questions.
Those ROMs are intended to be flashed on ANY device being delivered with Android 8 or higher, right?
I read that some functions will not work as they are not a part of the treble environment. Can anyone tell me which parts of he phone this could on our model?
Has anyone already flashed the pixel experience rom on a Xiaomi MiMix2S? Will anything be broken? E.g. Bluetooth, WiFi, camera, storage?
The kernel is already published if I read that correctly, so it´s just a matter of time before any stock aosp roms will come to our devices, right? Can´t wait - and get rid of MIUI!
Need advice!
Best regards
Click to expand...
Click to collapse
We are also waiting for the snapdragon 845 sourcecode, when this is available (first week of July maybe) custom roms are right around the corner

That's great news. Can't wait to get a stable android p ROM for this device.

kleinholzinferno said:
I'm new to this treble topic and have a few questions.
Those ROMs are intended to be flashed on ANY device being delivered with Android 8 or higher, right?
I read that some functions will not work as they are not a part of the treble environment. Can anyone tell me which parts of he phone this could on our model?
Has anyone already flashed the pixel experience rom on a Xiaomi MiMix2S? Will anything be broken? E.g. Bluetooth, WiFi, camera, storage?
The kernel is already published if I read that correctly, so it´s just a matter of time before any stock aosp roms will come to our devices, right? Can´t wait - and get rid of MIUI!
Need advice!
Best regards
Click to expand...
Click to collapse
Flashed, but couldn't boot.
I flashed PHH-Treble 8.1 instead, still finding the MIUI camera or a workable Google camera.

Pixel Experience

i'm new here and would like to know if you have any rom pixel experience project or pure android 9.0 for galaxy a8?

hanirr said:
i'm new here and would like to know if you have any rom pixel experience project or pure android 9.0 for galaxy a8?
Click to expand...
Click to collapse
As of now, the only way to get Pixel Experience is by using this guide https://forum.xda-developers.com/galaxy-a8-2018/samsung-galaxy-a8-2018-roms-kernels-recoveries--other-development/guide-project-treble-galaxy-a8-2018-t3894881 to get treble on your phone then use this https://forum.xda-developers.com/galaxy-a8-2018/samsung-galaxy-a8-2018-roms-kernels-recoveries--other-development/pie-vendor-galaxy-a8-a8-2018-t3931071 to get treble vendor and then install Pixel Experience GSI.

retriger said:
As of now, the only way to get Pixel Experience is by using this guide https://forum.xda-developers.com/galaxy-a8-2018/samsung-galaxy-a8-2018-roms-kernels-recoveries--other-development/guide-project-treble-galaxy-a8-2018-t3894881 to get treble on your phone then use this https://forum.xda-developers.com/galaxy-a8-2018/samsung-galaxy-a8-2018-roms-kernels-recoveries--other-development/pie-vendor-galaxy-a8-a8-2018-t3931071 to get treble vendor and then install Pixel Experience GSI.
Click to expand...
Click to collapse
Have a tutorial on how to install this project on galaxy a8?
Can I use it normally on a daily basis?
Does he have bugs?
Can I get back to the original ROM if I don't like using project treble?

hanirr said:
Have a tutorial on how to install this project on galaxy a8?
Can I use it normally on a daily basis?
Does he have bugs?
Can I get back to the original ROM if I don't like using project treble?
Click to expand...
Click to collapse
I only tried it once and I had mixed feelings about it. I'm a bit of a perfectionist so I always go back to stock after using different ROMs on my phones because I want everything to be fully stable and work as it should. When I tried Pixel Experience everything worked fine and it definitely can be used as a daily driver. There weren't any major bugs but I didn't get any major performance gain that I expected.
You can go back to stock if you don't like using it but your warranty will be void and you won't be able to use some Samsung features such as Samsung Pass, Health, Secret mode, Secure Folder, etc. So you should think if you really need that.
And if you decide to try it, you need to study these threads carefully and follow every step.
https://forum.xda-developers.com/galaxy-a8-2018/samsung-galaxy-a8-2018-roms-kernels-recoveries--other-development/recovery-twrp-3-2-2-0-galaxy-a8-2018-t3818201
https://forum.xda-developers.com/galaxy-a8-2018/samsung-galaxy-a8-2018-roms-kernels-recoveries--other-development/guide-project-treble-galaxy-a8-2018-t3894881
https://forum.xda-developers.com/galaxy-a8-2018/samsung-galaxy-a8-2018-roms-kernels-recoveries--other-development/pie-vendor-galaxy-a8-a8-2018-t3931071
But be careful not to brick your phone.

Hi I am writing to ask you if you have successed to install Pixel Experience on your Galaxy A8. Does it work well ? I also have a Galaxy A8 but unfortunately, the last updates has dramatically slowed down my poor phone. I have been told about Pixel Experience, it seems to be a very stable performant ROM, maybe it may solve my problem.

ROM request...

I'm curious why no one/team has made a ROM or ported a ROM to this device yet.
Is anyone on the forum able to compile a custom ROM for this device?
Motorola One Vision on Android 9.0

Well, I am not developer and I don't know very much about developing ROMs. But I think that the reason why there is no custom ROM is because of the processor. It's easier to make rom on phones with Snapdragon than with Exynos. So there is low chance that in the future there will be custom roms. Correct me if I am wrong.

This could very well be the reason. I didn't really think about that. But at the same time isn't the moto vision using the Samsung Exynos processor? There's plenty of ROMs for a large number of Samsung devices.
I was mainly just curious lol I came from a Google pixel (great custom ROM support) and previous to that I was on a Samsung S6 with a great custom ROM.
I'm pretty tech savvy, I wonder what it takes to port a ROM or develop one.

Kernal Development for nokia 3

Is there any chance we can port custom kernels like elemental x to nokia 3 stock pie?
Is it even possible, if i knew how i'd port one myself :')
somehow this device performs even worse than my old devices like Nexus 5x, and its been like that on all versions of android on this phone :/
if its possible, can someone guide me where to start?

hami.hamza said:
Is there any chance we can port custom kernels like elemental x to nokia 3 stock pie?
Is it even possible, if i knew how i'd port one myself :')
somehow this device performs even worse than my old devices like Nexus 5x, and its been like that on all versions of android on this phone :/
if its possible, can someone guide me where to start?
Click to expand...
Click to collapse
Please refer this : https://www.nokia.com/phones/en_int/opensource