To connect your Samsung Galaxy S3 to a wireless network:
- Push the Option key on the bottom of the phone.
- Tap the Settings button on the menu that appears.
- You should see that Wi-Fi is enabled by default. Tap Wi-Fi to continue the setup.
- You will now see a list of available wireless networks. Tap the one you would like to connect to.
- If your network is secure, enter your wireless password and tap Connect. Your wireless should now be connected.