In the Android world, translations are usually found in string resources. See [1], for example. AFAIK, if you want improved translations, 1) you'd need to eith

In the Android world, translations are usually found in string resources. See [1], for example. AFAIK, if you want improved translations, 1) you'd need to either fork AOSP, build a custom ROM, and your users would need to deploy that custom ROM on their devices. or 2) convince Google to accept your changes [2]. Edit: There may be other hacky approaches I'm not aware of. You might find something useful if you trawl the XDA forums [3]. [1]: https://github.com/android/platform_frameworks_base/blob/nougat-release/packages/SystemUI/res/values-zu/strings.xml https://github.com/android/platform_frameworks_base/blob/nou... [2]: https://source.android.com/source/contributing https://source.android.com/source/contributing [3]: https://forum.xda-developers.com/ https://forum.xda-developers.com/