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DevOtağ is a developer platform with a number of enhancements shared for various Android devices. Become a member and benefit from the contents!

DevOtağ, çeşitli Android cihazlar için birtakım geliştirmeler paylaşılan bir geliştirici platformudur. Üye olun ve içeriklerden faydalanın!

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Staff member

Hi dear forum members. I'm going to introduce you in this post that GM 9 Pro ( codename = GM9PRO_sprout ) device sources.

We have 2 sources to build rom. Those:
* Device tree
* Kernel tree (Thx to GM)
* Vendor tree

We have three branch.
Pie branch:
First of them "pie" branch. You can build Pie (Android 9) custom rom(s) with it.

Ten branch:
Second of them "ten" branch. You can build Q (Android 10) custom rom(s) using it.

Eleven branch:
Third one "eleven" branch. You can build Android 11 (R) custom rom(s) using it.

Important Note(s):
Don't use boot.img which is located in out folder. If you use it is your problem.

Auto Patch
We wrote a script to patch rom source automatically. It's executing script after ". build/envsetup.sh" automatically. Make sure that it finished successfully. You should see that "You're ready to building". Otherwise you should to patch rom source manually.
Patch source script

Manual patch
This commit should be committed. Otherwise play protect certification will be failed and you won't able to use gapps. Commit:
Target patch [Necessary]

Our sources always located at DevOtag GitHub address which is verified. To more visit:
DevOtag Open Source

DevOtag Team:
- @hgunduz295
- @trkzmn
- @Sedenogen
- @Celexa
- @NaytSeyd
and whoever has commit(s) on sources and patches.​
Last edited:
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