I used a few methods. I would connect the usb cable , then mount the phone on my computer and locate the micro sd card then drag them to the music folder . I would use WIFI and transfer them by using iTunes ( and a playlist) , Airsync and doubleTwist softwares..How do you transfer your files from PC phone. ...
There could be problem...
To give right answer I need more information. ..??
I have run on this issue before ...
Success is never final
Failure is fatal
The only thing i didn't do yet is swap out my 32gb SDmicro card for a different one. I doubt the card is bad because i did reformat it . Pictures and movies work fine on the card.
thanks for trying to help !!