RCA OPAL M4001 MP3 Player "android show hidden files" Questions

...show hidden files or folders, click on hide ext and hide protect click apply... Format mp3 player and tranfer music back to the sansa I always use LEO Privacy to hide files, you can also have a try ...

...android and xp forums : tried every connection mode, every usb port, code error 28 suggestions, .Net framework update , updated windows media player "mode", and some others ...But no success.Until ...