To watch other satellites you need to have either a seperate offset lnb aligned on whatever satellite you want or a second dish and lnb or a motorised dish. A diseqc switch is used to connect these to the Foxsat. It’s not hacking, the box is designed to be capable of operating as a free to air satellite receiver. Surprised a factory reset didn’t get you going.
Two suggestions. Open the secret menu – Menu/Setup Red Green Yellow Blue Green Yellow Blue.
Antenna Setting – Should be Fixed Antenna – change if wrong
Connection Type – Two Cables (same) – change if wrong.
If that fails you could try reflashing the firmware.
http://www.humaxdigital.com/uk/support/downloadcenter_model.aspx?category_seq=65
To get Sky sports you would need a valid Sky viewing card, a CAM to fit in the Foxsats CI slot and a Sky Box to keep the card alive. It would have to go in the Sky box periodically.