Remove The Lower Case - Lenovo IdeaPad L3i Hardware Maintenance Manual

Screw specifications
M2 x 3 mm
Step 3. Remove the ODD.
Figure 3. Remove the ODD
Go to
https://support.lenovo.com/partslookup
replacement part:
ODD

Remove the lower case

Make sure the following FRU (or CRU) has been removed.
"Remove the ODD" on page 28
Step 1. Place the computer upside down on a flat surface.
Step 2. Remove twelve screws.
Number of screws
1
to look up the Lenovo part numbers of the following
.
Chapter 4 Removing a FRU or CRU
29