4. Remove the board from the computer (4).
Reverse this procedure to install the USB board.
USB door
To remove the USB door, use this procedure and illustration.
Table 5-11  USB door description and part number
Description Spare part number
USB door, left M00444-001
USB door, right M00445-001
Before removing the USB door, follow these steps:
1. Prepare the computer for disassembly (see Preparation for disassembly on page 26).
2. Remove the bottom cover (see Bottom cover on page 26).
3. Remove the battery (see Battery on page 27).
Remove the USB door:
▲ Insert a removal tool under the back of the USB door, and then lift to remove the USB door from the 
computer.
Component replacement procedures 37