Won!
https://www.facebook.com/MediatekAndroidDevelopers/
Jiayu S3 Adv/Basic/Pro (mt6752) - Android 7.1.1!
Build 20161207 - Stable 4
Changelog:
- update to Android 7.1.1
- improved bt audio
- added 'longpress button to kll foreground app'
- fix screen unpinning
- improved Russian translations by Borizzz (more translations to come)
- Various other improvements
Give feedback guys