I have two similar to the one you bought. I haven't had any trouble copying music to either of them. Perhaps your player is defective? Have you tried contacting the seller and asking them if they have a solution? I checked toolhause.org and a couple of feedbacks on your seller had the same problem as you do.
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 ops: 1GB Black Hacked Chipod ops:
2 GB Black Temptation Player 
8) WHITE MEIZU M6 8GB 8) |