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== turn off carrier network radio and disconnect from the carrier network while still using Wifi ==With traditional Blackberry phones it was easy to turn off the radio for the telephone carrier and still use WiFi. Android phones don't seem to have a checkbox to turn on or off the telephone network radio. One way to accomplish this on many Android phones such as the Casio Commando is to use "Airplane Mode." In Airplane Mode all internal radios are deactivated, including the carrier radio, WiFi, and Bluetooth. However, you can manually turn the WiFi radio on in Airplane mode while keeping the carrier radio off.* Turn on Airplane Mode, Menu -> Settings -> Wireless and Networks, -> check the box for Airplane mode, wait a few seconds, then check the box for Wi-Fi. The phone will be disconnected from the carrier network and can still connect to a wireless access point.