Open quick settings and tap 

When you're connected, you'll see 
After connecting to a Wi-Fi network, your phone saves its details to automatically connect to previously used networks. You can manually connect to a different nearby network, share a network, or remove a saved network you no longer want to connect automatically.
To scan for nearby available networks that you haven't connected to before:

Turn Wi-Fi on 
You'll see a list of available networks. If a network needs a password, you'll see 
Do one of the following:


To switch to a network you've used before:

In the list of nearby networks:


You can share connection information with a friend so they can connect to the same network.


If you don't want to automatically connect to a saved Wi-Fi network, you can forget that network.

To save battery life, turn off Wi‑Fi when you're not near a Wi‑Fi network.
Open quick settings and tap 

If you turn this off, apps that use your location won't work as well.

Tap Save.
The hidden network is now visible in the list of available networks, and if you weren’t connected to Wi-Fi previously, you’re now connected.
If you’re having issues with Wi-Fi, try these troubleshooting steps.