This process will allow you to have 2 versions of the DJIGo4 app installed on your device at the same time. This is helpful if you want to be able to switch between a modded and unmodded app whenever you want without uninstalling/reinstalling frequently. This Howto explains specifically how to have a modded DJIGo4 app installed as well as the latest official DJIGo4 app from the Play Store with the ability to keep the official app updated.