On Android 10, 11 system dialog is used when ENABLE or CHANGE button is pressed for folders selection and permissions. That system dialog can be previously disabled by user or can be missing from some ROMs completely. Android 11 - please ensure Settings / Misc / File Access Legacy Mode is OFF. Please ensure, that following system app exists and is not disabled on your device (you may need to select some option to show all apps / system apps): Files (com.google.android.documentsui