1:First: Install  LanguageChange from Google Play First

2: Use ADB command to Make SuperLangs work through Computer (Recommend way)

• Use Automatic Tools to Grant Permission:（Through Windows Only）

Tutorial: https://blog.sightidea.com/?p=574

•  Or Manual Input ADB Command to Grant Permission: (Windows or Mac)

Tutorial: https://blog.sightidea.com/?p=575