Just to mention that this card is not working with 01.02.18 (and don’t work whith .15, and .16 too)
Transcend TS16GUSDC10 microSDHC Class 10 16Go
Yes, many people have problems with Class 10 cards (and it’s not only the SanDisk brand). It’s the wrong card for mp3 players. You need a Class 4 (or even Class 2 is OK).