Lenovo ThinkCentre 2697 User Manual page 96

Figure 76. Peeling off the paper that protects the sticker
5. Stick the front antenna to the front panel as shown. Then insert the front antenna cable through the
hole in the front panel.
Figure 77. Installing the front WiFi antenna
6. Connect the front antenna cable to the WiFi card module.
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ThinkCentre User Guide