HTC EVO 3D User Manual - Page 194

If you do not see an indicator, your device does not have a current data connection. To launch a connection, see "Launching a Web Connection." Turning the Data Connection On or Off Turning your data connection off can help optimize your battery life. It can also save money on data charges. However, when your data connection is turned off, you may not always receive automatic updates to your email, social network accounts, and other synchronized information. 1. Press > and tap Settings >  Wireless & networks. 2. Select the Mobile network check box to turn on the data connection; clear the check box to turn off the data connection. Adding the Data Connection Widget Add the Data connection widget to the Home screen to make it faster for you to turn the device's data connection on or off. To learn how to add widgets, see "Customizing the Home Screen" on page 38. Connecting to a Virtual Private Network (VPN) From your device, you can add, set up, and manage virtual private networks (VPNs) that allow you to connect and access resources inside a secured local network, such as your corporate network. Preparing Your Device for VPN Connection Depending on the type of VPN you are using at work, you may be required to enter your login credentials or install security certificates before you can connect to your company's local network. You can get this information from your network administrator. Also, your device must first establish a Wi-Fi or data connection before you can initiate a VPN connection. For information about setting up and using these connections on your device, see "Launching a Web Connection" and "Turning Wi-Fi On and Connecting to a Wireless Network." 182 3B. Web and Data Services