Question: how to use 2.4 ghz wifi?
Answer: To connect to a 2.4GHz network, go to Settings ( )>Wi-Fi. In this menu you will see all detectable networks in your area. Locate the SSID for your network, and tap on the SSID with the 2G or 2.4 end notation. Connect to that network using the Wi-Fi password associated with your network.