# Send Buttons Disabled

The KX3 Utility Send buttons are disabled if you are connected to a Elecraft K3 rather than a KX3. Use the Elecraft K3 Utility to install firmware in your K3.

The Send All New Firmware to KX3 button is enabled only when there is new firmware available to send. All the required firmware files necessary to load the KX3 must be present, and the available firmware versions must be greater than the installed firmware versions for the firmware to be considered "new".

The Send All New Firmware to KX3 and Send Checked Items to KX3 buttons are disabled while copying files from Elecraft.

If the button is not enabled when newer versions are shown in the Available column, try clicking Copy new files from Elecraft to copy the required files from the Elecraft server.

If the Send All New Firmware to KX3 button is still disabled, required files may be missing from your Firmware folder. See Missing Files.