Hard Drive Installation Guide:
1. Unplug the ac adapter, if present.
2. Remove the primary battery (and the secondary battery, if present).
3. Remove the hard disk locking screw on the bottom of the unit.
4. Pull out the hard disk using the black plastic tab.
5. Slide the new disk drive into the unit and replace the locking screw on the bottom of the unit.
6. Insert the battery.
