Check you have the correct LNB setting in the setup menu. If 10750 doesn't work try 11300. Can you post a photo of the tuning setup screen showing your parameters? They need to match those for the Sky Decoder.
With the S7070r if you are setting it up for the first time.. or first time in a while I would suggest a factory default, this is in the menu - installation - factory default, password is 0000. It should load to a country setup screen where you can press OK and it will do a full scan. For more assistance please call our support desk on a landline: 0800 347488, or a cellphone: 07 9294123 or email us at firstname.lastname@example.org