You are trying to write a file meant for a different radio model. Ensure the transceiver model selected in the software profile exactly matches the sticker under the battery of your physical radio.
Always pull the current configuration from a radio before making changes. Connect your radio to the PC using the appropriate USB programming cable, power the radio on, open KPG-D6, and click . Instantly save this file as a .d6 backup file. Step 2: Configure System Settings kenwood kpg-d6 software download