Acer Chromebook 311 Lifecycle Extension Manual page 12

Figure 1-10. WLAN Module Removal
4. Remove the WLAN module (A) from the mainboard connector (D) (Figure 1-11).
D
A
WEEE Annex VII Component: WLAN Module
Figure 1-11. WLAN Module Removal
1-10 Disassembly Procedures