Think I deleted the wrong file?

Hello

I own a Sandisk e140 and I have just deleted some mp3’s off of it and when I turned it back on the sceen flashed for a secound and then nothing, My computer doesnt register as having anything connected to the lead anymore also. Have I deleted the wrong file? and ifso is there a way of getting it back on to it?

Never mind I fixed it:smiley: