First of all sorry 4 my bad Englısh

ops: I have an Mp4 player which made from china...Not completely but like this....below :arrow:

My Problem: My Mp4 player turned off sudenly when I link it computer with USB. ( little remind note: ıt has been seen on screen when ı started Mp3FWTools progremme.) A few minutes later sudenly turned off and lost flah drive (ex:H:/) I cant turn on after that.
pls somebody help me..!
already thx.