The BLU Vivo 5 is an Android smartphone produced by BLU, an American consumer electronics company. The 5 was produced through a partnership between BLU and Vivo Communication Technology Co. Ltd., a Chinese technology company. The BLU Vivo 5 was released in February 2016.
Hi, Can you try using the SD Card to play music from, in another phone to see if the problem is with the phone or the SD Card?
by jayeff
Can you specify what type of sound files you are trying to play and do what jayeff said also.
by Bomber_Bot