How do I fix my sansa fuse that won't turn on?

How do I fix my sansa fuse that won't turn on?

My sansa fuse was working great for me until one day the screen went white screened. I let it sit till it's battery ran out so i could charge it back up again afterwards (which was the usual way i fixed my mp3) however this time when i tried to charge it up it would not come back on and the on switch will not do anything. What do you think is the problem? and have any suggestions?

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