Dell Latitude 5480 - System Board; Removing System Board

System board
Removing system board
Steps
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. SIM card
b. base cover
c. battery
d. keyboard trim
e. keyboard
f. WLAN card
g. WWAN card (optional)
h. hard drive assembly(optional)
i. SSD card
j. memory module
k. coin cell battery
l. heatsink
m. system fan
n. chassis frame
3. Disconnect the following cables from the system board:
a. Speaker [1]
b. LED board [2]
c. Touchpad [3]
Removing and installing components
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