I\'m basically trying to do this: Changing the Android emulator locale automatically
Everything works up until \'start\'. the emulator starts to boot but keeps loading
You asked how to restart the emulator from ADB. But the title is framed in a way that pops the question up when searching about restarting it from the UI as well.
One option could be (but it depends on which tooling you are using and may not be available for all emulators/environments) is to tap and hold the Power button and then a menu will pop up with a Restart option in it.