I tried to install this firmware over version 1.17 (installed on player I just purchased). After I disconnected from the computed, the player went through the install, apparently successfully, and shut itself down. When I restarted it, it just displays “SanDisk” and freezes. Trying to reset by holding the power button for 20+ seconds causes the screen to go dark, but as soon as I release it, the player turns on and displays “SanDisk” again.
What do I do now?