my ipod classic had a trouble shooting
when i open my ipod classic only the apple logo and X mark was appear. this problem was started when I let it battery low. I didnt charge it about 2 weeks and then it happens.
iPod classic, Model number a1238
See here: iPod Displays a Red "X" Icon
Note that if it's often a sign of a hardware issue usually with the iPod's Hard Drive. If possible, schedule an appointment at your local Apple Store/Genius Bar to have them verify that for you.
B-rock