[HELP] Android 11 device tree? - Samsung Galaxy J7 Questions & Answers

So, I am looking to compile aosp 11 roms for on7xelte as there arent any here as far as I know. But i need a android 11 device tree and my tech skills aren't advanced enough to create my own. I have seen astrakos device tree, but it is only for android 10 and the build fails due to missing fmt/chrono.h . Does anyone know how to fix this error or has someone made android 11 device tree for on7xelte .

santhosh ravi said:
So, I am looking to compile aosp 11 roms for on7xelte as there arent any here as far as I know. But i need a android 11 device tree and my tech skills aren't advanced enough to create my own. I have seen astrakos device tree, but it is only for android 10 and the build fails due to missing fmt/chrono.h . Does anyone know how to fix this error or has someone made android 11 device tree for on7xelte .
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You can flash a GSI with H vendor and modify the GSI to make everything work rather than compiling a ROM.

jjgvv said:
You can flash a GSI with H vendor and modify the GSI to make everything work rather than compiling a ROM.
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I would but it has too many bugs,namely wakeup delay and random reboots and i also want to do someothing for this community.

santhosh ravi said:
I would but it has too many bugs,namely wakeup delay and random reboots and i also want to do someothing for this community.
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ME TOO HOW DO YOU KNOW!?
Anyway I use j7 2017 and these problems are fixed for J7 2017 but not for J7 Prime :( but now my J7 2017 is stable

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Hi guys and girls, my problem is: i'm making a ROM but i can't found the sources like kernel,proprietary vendor files and device configuration source
of KitKat in git format, the github of razrqcom-dev-team only have source of CyanogenMod 11, the sources of cm 11 doesn't work with the ROM i'm doing. Please Help
Itachitops said:
Hi guys and girls, my problem is: i'm making a ROM but i can't found the sources like kernel,proprietary vendor files and device configuration source
of KitKat in git format, the github of razrqcom-dev-team only have source of CyanogenMod 11, the sources of cm 11 doesn't work with the ROM i'm doing. Please Help
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not released yet afaik
Sent from my phone

How to build Android Oreo Compatible Device tree...?

Hi..,
I am trying to build a Android O based custom rom for my device (Moto X Force /Droid Turbo2 i.e Kinzie) which has very little custom rom support and development support too.. Till now it has only Unofficial LineageOS14.1
Device Tree for Android 7.1 : https://github.com/lineageos-for-kinzie/android_device_motorola_kinzie
Vendor Tree for Android 7.1:
https://github.com/lineageos-for-kinzie/android_vendor_motorola_kinzie
I want to make this Device Tree compatible for Android 8.1 development but doesn't know where to start from.
If anybody can help and give his guidance then please share to this thread
I think it's best to start from the clark phone. LineageOS 15 is already out for clark and they have a very similar device tree.

Develop custom rom from scratch (non-developing devices)

Can anyone help me find my device source tree.... I have "10.or G" i couldn't find it... I am confused now .... What should i do?
Kernel sourse for this device has been released for nougat.... How can i use it to build roms based on oreo... Or even recovery?
I am a noob in developing roms .... I have some knowledge of flashing and using them... Now i want to develop my own since this device has no developers . Also ,no information on github(device source tree )
Device info:
SoC: Snapdragon 626
Sources available : android nougat kernel source code
Current android os : android 8.1
Treble support : no
Any help will be appreciated

Compile android 11 rom with android 5 device sources

I currently have an old TAB E sm t561. I want to compile android 11 for it. It's device tree ,vendor tree, common tree version is lineage os 15 I.e android 8
Its kernel source is lineage os 12 that is lollipop. Can i compile android 11 lineage os 18 rom?
nothing is impossible with *unix but thinking all the issue and troubleshooting that would come along the way i would say this is stupid idea ...

Custom rom Build for update device

Hello i am on XDA today for ask you how i can update my device to more recent android like android 9 or 10 because mine ( umidigi one pro ) is on android 8.1 oreo and no update is avaible.
So i want like android 9 to get the last features, gesture, ui and security. But my device don't have any custom rom which support it.
So i tell your help to know how i can build my own custom rom with a base like lineage os or havoc os or other, build an unofficial rom. to get exactly the same spec than i add in stock rom with no bug and other
So please tell me how i can do or who i can tell for do this.
This tread can help some people like me
You might want to start by building an AOSP ROM for your device. Here's some info to get you started.

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