In case of using “RICOH THETA for Android”, “RICOH THETA m15 for Android” on Android 8.1, check whether “THETA” or “THETA m15” is enabled on the OS’s “Location” setting.
“Setting (gear symbol)” – “Apps&Notifications” – “App permissions” – “Location” – Check the “THETA”,”THETA m15″ item.
If it is disabled, the app can’t connect with a camera.