besides "F" are there any more drives appearing in windows, look for other drives (i am sure you have
)
we had a guy on mp4nation with a rockchip vx747 clone and this worked for them, now they are happily modding
battery is low, but par for the course on the types of clone players
lrc file are just text files, open them with note pad, they are lyric files that are linked to an mp3 file, shows song lyrics as it plays