Not working

SanDisk MP3 players SanDisk® Clip Jam

tapeworm July 3, 2017, 2:22pm 2

Try manually re-applying the firmware:

http://forums.sandisk.com/t5/SanDisk-Clip-Jam/SanDisk-Clip-Jam-Firmware-1-12-Download-and-Installation/td-p/358899