Had the same problem. Please follow the below steps:

1. Press on volume key (up or down)
2. On the Gray menu select None and Indefinitely
3. Exit the menu by clicking on the main screen
4. Press on volume key again
5. Select All. It should work now.

Had the same problem. Please follow the below steps:

1. Press on volume key (up or down)
2. On the Gray menu select None and Indefinitely
3. Exit the menu by clicking on the main screen
4. Press on volume key again
5. Select All.

It should work now.