do u still have it? (I got the same but in order to fix ir I need to get the original firmware)
In ur case I think urs needs simply to be re-formatted as probably the firmware installed is corrupted (and assuming the battery is not the issue as well as u didnt try any modifications of the original firmware, including loading another firmware)
how re-format ur logik?
take the battery off
push and hold the on/off button
then connect the player to an usb port of ur pc, and dont forget to keep holding the on/off button until the player is recognized by the pc as a "removable device".
then if all went good, right-click on the icon of the removable device (u'll find this in the folder "pc resources"). and u'll see a mini menu, among the available voices it should be also "format". follow the simple instructions and then the memory of the player will be erased and yet the built-in firmware (and hopefully uncorrupted) will be set up again.
my email is devidarla(AT)libero.it