- Notes: https://apuroth.gitbooks.io/android/content/androidbian_yi_huan_jing.html
- Change default bluetooth name: http://www.tlcement.com/329778.html
- http://www.haoyuelectronics.com/service/A10-A20/A20-Docs/A20_Android4.2%20wifi+bt%C5%E4%D6%C3%CB%B5%C3%F7_V0.2.pdf
- https://sx.ix5.org/info/posts/
- https://www.jianshu.com/techareas/backend
- https://blog.csdn.net
- https://kwebtoon.tistory.com/category/%EC%95%88%EB%93%9C%EB%A1%9C%EC%9D%B4%EB%93%9C%28Android%29%20%EA%B4%80%EB%A0%A8
- https://undocumented.software/wiki_dump/ has a lot of documentation.
- https://elinux.org/images/2/29/Customizing_AOSP_for_my_Device.pdf
- https://www.digi.com/resources/documentation/digidocs/embedded/android/dea11/cc8x/bsp_r_create-dt-overlays
- https://www.akr-developers.com/
- https://www.cnblogs.com/henghenghaha/articles/11843283.html - bootloader, hals, dynamic partitions etc.
- https://sx.ix5.org/info/handling-android-images/