# Getting Started

- Connect your Personal Computer to your KX3's ACC connector using a KXUSB interface cable for USB or a KXSER RS-232 cable.
- Start the KX3 Utility.
- Choose the PC serial port used.
- Click Test Communications to verify the connection.
- Select the Firmware tab to check or update your KX3's firmware.
- Click Default to select a Local folder for firmware files
- Click Copy Firmware Files from Elecraft. The latest firmware files will be copied from an Elecraft file server to your Local folder for firmware files. Then the firmware versions available in your Local folder for firmware files are compared with the versions installed in your KX3.
- If new firmware is available, click Send All New Items to KX3. Firmware installation takes just a few minutes.