HP LaserJet PRO M521 Repair Manua page 80

6.
Release two tabs, and then remove the Wi-Fi module from the mounting bracket.
Figure 1-101
7. Disconnect the Wi-Fi cable from the Wi-Fi module.
Figure 1-102
70 Chapter 1 Removal and replacement
Remove the Wi-Fi module and cable (5 of 6)
Remove the Wi-Fi module and cable (6 of 6)
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