Depending on how you charge your BlackBerry® device, try performing the following actions:

• Verify that the USB cable is securely connected to your device and a USB port.
• Try connecting your device to another USB port on your computer, a USB port on a different computer, a USB hub, or try using a travel charger.
• Verify that BlackBerry device USB drivers are installed on your computer. When you install BlackBerry® Desktop Software from the CD that came with your device, the correct USB drivers should be installed. You can also download the latest version of BlackBerry Desktop Software from www.blackberry.com.
• Verify that your computer is not in standby, hibernate, or sleep mode.
• Some USB hubs might not provide enough power. Plug the hub into a power outlet (if available) and reconnect your device.