Installed a photo (which I have since lost/deleted) and now want to restore original carrier wallpaper but when I click on Reset to Carrier Wallpaper and despite message indicating this has taken place, nothing happens. When I click on Select Home Screen Wallpaper, it says, "Folder Unavailable. You do not have permission to access this folder." I have tried rebooting and removing SIM and media card but to no avail. This is a BlackBerry Classic.