Press the camera's [MENU] button to display the menu.
On the MENU screen, select [Wireless communication settings] on the tab below.
Select [Wi-Fi settings].
Select [Wi-Fi] and set to [Enable].
Select [NFC connection] and set to [Enable].
The touchpoint varies depending on the smartphone you are using. Check your smartphone manual for details.
If this does not work, turn the camera off and on and touch it again.