iFixit

Peel up the ground strap connecting the battery to the logic board.

Insert the flat end of a spudger between the battery and the headphone jack side of the front case to pry the battery up off the adhesive securing it to the front case.

Rotate the battery out of the iPod and lay it next to the iPod. The battery is still soldered to the logic board by three wires, so don't remove it entirely.

Gently lift up on the dock connector end of the logic board to ensure the logic board is free.

Grasp the end of the logic board near the battery connector with one hand, and hold onto the rest of the iPod with your other hand.

Make sure the logic board is lifted slightly above the white plastic notch on the battery side of the board. This notch prevents the board from sliding out in the next step.

Slide the logic board out of its holding brackets on the rear of the display.

The logic board is still connected to the iPod by two ribbon cables.

Disconnecting the following two ribbon cables may be challenging. To prevent straining the cables or connectors, you can only separate the two halves of the iPod about 1/2 inch during the process.

Use a spudger to flip up the black plastic tab holding the orange display ribbon in place. The black tab will rotate up 90 degrees, releasing the ribbon cable.

Use a spudger to slide the display ribbon out of its connector.

Use a spudger to flip up the black plastic tab holding the orange click wheel ribbon in place. The black tab will rotate up 90 degrees, releasing the ribbon cable.

Use a spudger to slide the click wheel ribbon out of its connector.