PHICOMM K3C Router

How far did you guys get with this one?

I was looking at BT Smart Hub Type B BT Smart Hub (Home Hub 6) Type B
and it seems to have similar (or the same CPU/SoC).
WikiDevi https://wikidevi.com/wiki/BT_Smart_Hub_Type_B, so wanted to check if GRX350 support is adequate.