Replacing the Bottom Case Installation Procedure 1. Install a new Microsoft Product ID label. 2. Transfer the old serial number label and install a new overlay, or create a new serial number label using the steps below. 3. If you need to install or replace the docking or PCMCIA doors, refer to the figures below. Figure 2-25. Installing Docking Doors 2-38 Removal and Replacement HP OmniBook XE3