HP TC4400 - Manual (Page 100)

Removal and Replacement Procedures
Maintenance and Service Guide 5–17
5.8 Keyboard Cover
1. Prepare the tablet PC for disassembly ( Section 5.3 ).
2. Position the tablet PC with the front toward you.
3. Remove the two Torx8 T8M2.0×10.0 screws 1 and the
two Torx8 T8M2.0×20.0 screws 2 that secure the
keyboard cover to the tablet PC.
Removing the Keyboard Cover Screws
Keyboard Cover Spare Part Number Information
Keyboard cover 383558-001