HP ProBook 645 G4 Maintenance And Service Manual page 54

2. Position the computer on its side and open so you can access the bottom.
3. Insert a blunt tool into the keyboard release opening near the fan, and then press gently on the back of
the keyboard until it disengages from the computer.
CAUTION:
4. Position the computer upright and open the display as far as possible.
44 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
Press gently to avoid damaging the keyboard.