3 Secure the SSD using the four supplied 3.0 mm screws.
Back side 
4 Close the top lid and secure the lid using the five 2 mm screws removed in step 1.
Use a No. 2 Phillips screwdriver to secure the screws.
Back side
NOTE:
•Be sure to use a No. 0 Phillips screwdriver for the lid screws and a No. 2 Phillips screwdriver for the SSD securing screws.
Use a No. 0 Phillips screwdriver to secure the screws.