https://www.malaysiainternet.my/2019/08/emui-10-beta-to-reach-huawei-mate-20-mate-20-pro-and-other-mate-20-series-phones-in-late-september-report/
EMUI 10 Beta to Reach Huawei Mate 20, Mate 20 Pro, and Other Mate 20-Series Phones in Late September: Report