How to Install OctaviOS v2.7 Official on Samsung Galaxy A50 Android 11 – GSI. OctaviOS v2.7 is based on AOSP, inspired by Google Pixel and Brought to you by @Yilliee. OctaviOS v2.7 comes with ROM OS Android 11 offers more features and light. This ROM Required: Installed TWRP Recovery. Version Information Status: Official Stable GSI • Read More »