Broken? i think ibulldog mp3 player is broken. one day i was listening to music and i let my

Question

i think ibulldog mp3 player is broken. one day i was listening to music and i let my friend listen to it. and when i got it back i turned it back on and it said "No Files". and i tried plugging it back up to my computer. and when i did the computer said it was hooked up. but when i went to WMA(windows media player)to sync some music it said there was no device hooked up to the computer. can someone help me figure out why it does that? or if it can be fixed? or even if its broken?