Let's ensure your awesome iPhone 5S can detect and connect to a WiFi hotspot!
Just a few questions to uncover the exact issue. Has your iPhone been able to detect and connect to a WiFi hotspot in the past? Do you have a WiFi hotspot within range of your device?
Please try soft resetting the device by following these steps: http://vz.to/1dTibRN. Then reset the network settings: http://vz.to/HhvJYR. Keep me posted.
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