SanDisk Clip Sport Firmware 1.38 released

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?