Hello,
in my App I added the Permissions
READ_EXTERNAL_STORAGE"
WRITE_EXTERNAL_STORAGE"
On the internal Storage I can make my Folders and write my Data (/Storage/emulated/0/TestDir).
Now I want to write the Backup of the Data on the external Storage (/mnt/media_rw/sdcard1/BackupTest).
When I try to Create the Folder or write Data on the external Storage I get the Error:
System.UnauthorizedAccessException: Access to the path "/mnt/media_rw/sdcard1/BackupTest" is denied.
How do I get writing permissions on the external SDCard.
Android 4.4.4