Huawei is extending its EMUI public beta program to 14 new devices, including the Mate 10 and P20 series. Starting today, Chinese users will be able to upgrade their phones to the latest build while the international audience will have to wait for several more days. EMUI 9.1 brings new colorful wallpapers alongside the EROFS file system for faster system performance, OneHop file sharing and more subtle tweaks. Check out all the new features here. In order to become an EMUI beta tester, you'll have to install Huawei's custom Beta Club app and sign in with your Huawei account. Then...