2. The mobile phone does not support playing video files for the time being. Video files are special files. If you want to play them, you need the support of the corresponding version of League of Legends client. If you don't have the correct version, you can't play them. Right-click League of Legends \Game\LeagueofLegends.exe in the game installation directory to create a shortcut.
3. First record the video at the beginning of the game and share it after the game. Then open your own Pocket League of Legends, enter the Pocket League of Legends, find my hero moment, and you can see your own game playback.