Would not think the factory reset deleted the satellite xml file unless it was a custom one in enigma2 folder any how there shoulld be a satellite xml file with na sats in tuxbox folder. Do a google search for ENIGMA2 TUTORIAL and read up on how to use it. You are going to need filezilla and dreamset or Dreambox edit to transfer files.
Press menu and see if you see information if so press ok on that and then About. That should have info on what image is loaded. And to set the ant/lnb. Press menu and look for setup and system searching and Tuner configuration. Probabably use advanced mode. Choose the Satellite then lnb number 1 or 2 ect. go down the list. I don't know you setup so I can't tell you what to enter.