Lightning damage to cxn v2

I’ve got an opportunity to get a Cambridge Audio cxn v2 streamer. Only problem is it was hit by lightning while connected!

Everything works fine except for the Ethernet port and the rear USB/WI-FI dongle ports. You can connect the dongle to the front usb and everything works.

Looking at the circuit diagrams, there appears to be a usb hub ic that controls the rear usb and Ethernet ports to connect into the main module.

The usb ports get power ok, but nothing is recognised. Before I take a punt I wondered if it was worth it or is it likely the hub ic is shot? While I am an electronics tinkerer I’m by no means at the level of swapping surface mount ics!

Any help appreciated!