: A CT-106 pigtail is required to connect the FIF-12 cable to the radio's accessory jack.

The primary programming software for the Vertex Standard VX-230 (and its successor, the VX-231) is the

: Install the FIF-12 drivers from the included disc before connecting the cable.

Illegal software might be for a different firmware version. Writing incorrect data can corrupt the radio’s EEPROM, turning the device into a non-functional “brick.” Repair is expensive or impossible.