“How do you know—”
If your Code Breaker v7.0 for PlayStation 2 isn’t linking or connecting properly (to PS2, PC, or memory cards), here’s a practical troubleshooting guide and recovery steps to get it working again.
To get the link working today, you cannot use a standard modern USB-A to USB-A cable found on Amazon. The PS2 requires a specific type of hardware:
This article is a deep dive into making that USB link function correctly.