C1586109250890 , via OnePlus 7T , Jan 22, 2021 : Just installed the open beta for my OP7T of android 11. FYI, when it downloads it adds a .jar to the end of the file name making it not usable. Prior to cutting and pasting in internal storage, rename and remove the .jar part..then cut and paste. Otherwise it won't work. Many of the online instructions do not mention the .jar aspect.