Lenovo Yoga C640-13IML Hardware Maintenance Manual page 47

Figure 24. Remove six screws
Call out
3
Step 4. Open the hinges and rotate the LCD module to an angle of 30 degrees or less. Then, remove the
upper case.
Figure 25. Open the hinges and remove the upper case
Go to
https://support.lenovo.com/partslookup
part:
Upper case
Screw specifications
M2.5 x 4.5
to look up the Lenovo part number of the following replacement
Number of screws
6
.
Chapter 4 Removing a FRU or CRU
41