Epson PowerLite X49 3600-Lumen XGA 3LCD Projector - Manual (Page 57)

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3. Attach the wireless LAN module cover and secure it using the screw you removed.
Note: The wireless LAN module cover may be provided with the optional wireless LAN module
instead of the projector.
The light on the wireless LAN module turns on when the module is installed and operating. The light
flashes when the module is communicating over the network.
Caution: Never remove the wireless LAN module while its indicator is blue or flashing, or while you are
projecting wirelessly. This could damage the module or lose data.
Parent topic: Wireless Network Projection
Related references
Optional Equipment and Replacement Parts
Using a QR Code to Connect a Mobile Device
After you select the wireless network settings for your projector, you can display a QR code on the
screen and use it to connect a mobile device using the Epson iProjection app.