Instructions
Ensure the batteries in the LeapFrog Leapster are installed with the "+" and "-" ends in the right positions. If not, reposition the batteries.
Ensure the battery cover is secure. Use a screwdriver or coin to tightly secure the cover.
Rearrange the batteries in the Leapster. Remove each battery and put it in a different slot.
Clean the battery contacts in the Leapster with a pencil eraser or soft cloth.
Install four new AA batteries in the Leapster.