Loading Audible files on to Clip sport

I had the same issue regarding Audible. I checked Clipsport firmware setting and it was 1.12 so I followed instructions to the letter to update firmware in order to properly utilize Audible on Sandisk Clipsport. After the device read “Update successful” it powered down on it’s own. I waited  few minutes and powered it on to check the firmware settings and to my surprise the device will not turn on at all. Any thoughts?