Remove The Upper Case - Lenovo Chromebook C340 Hardware Maintenance Manual

Figure 17. Remove the thermal pad
Go to
https://support.lenovo.com/partslookup
replacement parts:
Thermal pad

Remove the upper case

Make sure the following FRU (or CRU) have been removed.
"Remove the lower case" on page 28
"Remove the battery pack" on page 29
"Remove the I/O board with cable" on page 31
"Remove the WLAN card" on page 32
"Remove the system board" on page 33
"Remove the speakers" on page 35
"Remove the thermal pad" on page 36
Step 1. Remove six screws.
to look up the Lenovo part numbers of the following
.
Chapter 4 Removing a FRU or CRU
37