He needed to flash the firmware. The radio was currently "bricked"—stuck in a boot loop after a power surge. He needed the factory image. And Yaesu had stopped supporting the VX-3000 a decade ago.
The primary software for the VX-3000 series is (often found as version CE19D for Windows or CE19 for DOS). yaesu+vx3000+software+free
Yaesu's official programming software for the VX-3000 is (or similar variants depending on exact model: VX-3000L, VX-3000U, etc.). This is commercial software requiring purchase. He needed to flash the firmware