Disable PIC on WIZ550io

How do I disable the onboard PIC microcontroller to work directly with W5500?
I have WIZ550io Ver1.1.


WIZ550io PIC is mac address keeping.

first in operation. then MUX select and PIC operation and MAC address W5500 registration.

And MUX deselect. So, wiz550io operation.

you need not using PIC?
→ MUX desoldering (MUX delete).

Thank you

Thank you!