Hi, I have a m250 and wanted to change mp3’s. I formated the m250 and showed up with no files. I than at 1st copied files to the m250 but the old files showed up. Formatted it again and did a drag and drop , same thing happened again. So turn on m250 and old files show up. Plug into computer and new files show up.
I am at a loss, any help would be much appreciated , thank you.