HP LaserJet PRO M521 Repair Manua page 79

4.
Release one tab and remove the scanner lower cover. Feed the USB and Wi-Fi module cables and
the control-panel FFC through the openings in the lower cover as you are removing the lower
cover.
Figure 1-99
5.
Remove one screw, and then remove the Wi-Fi module mounting bracket.
Figure 1-100
ENWW
Remove the Wi-Fi module and cable (3 of 6)
Remove the Wi-Fi module and cable (4 of 6)
Removal and replacement procedures
69