Press and hold all keys in the combination together, not one at a time. Shut down your Mac. Then press the power button to turn on your Mac. Then press and hold the keys as your Mac starts up.
Press VO-Right Arrow until you hear “view radio group” and then interact with that control. Press VO-Right Arrow key until you hear the view you want to use.You can choose from icon, list, column, or Cover Flow view. In Cover Flow view, the browser is split horizontally into two sections. The top section is a graphical view of each item, such as folder icons or a preview of the first page of a document. The bottom section is a list view of the items.
To jump, press VO-J. If you’re using VoiceOver gestures, keep a finger on the trackpad and press the Control key.
Icon view: Use the arrow keys to move to the item you want.
List view: To move down the list rows, press VO-Down Arrow. To expand and collapse a folder, press VO-. To move the VoiceOver cursor across a row and hear information about an item, press VO-Right Arrow. Or press VO-R to hear the entire row read at once.
Column view: To move down the list until you find the folder or file you want, use the Down Arrow key. To move into subfolders, press the Right Arrow key.
Cover Flow view: To flip through the items in the top section and move automatically through the corresponding list rows in the bottom section, press the Left Arrow or Right Arrow key.
VoiceOver announces when you have selected an alias or a file or folder you don’t have permission to open.