guys need help.

4Gb I bought it new from a friend. Freebie yun nung bumili sila ng Hilux. Just loaded songs 2 days ago. Nag pplay naman sya and no problem until today. Songs appear to play but seconds are not ticking tapos walang sound. Tried other songs ganun pa din. Chineck ko na settings, wala namang naka disable or naka pause. No issue sa earphone since i tried it with other mp3 player. Di naman sya hang kasi i can still navigate eh.

Thanks for any advice.