Go to Menu, Scroll to Entertainment, Scroll down to Sokoban then enter 7890, it should display Code. You should be in the keys menu, then Enter the keys(00)Active for the 10-11 rows which are 0C FA 39 73 91 5F etc...
Like KingFish said: Go go Keys section by entering 7890 in Entertainment menu. Make sure You have "NagraVision" selected on 1st row. Second row should be: Dish ...01 01 00 Change lines starting 10 and 11 as: 10| 0C FA 39 73 91 5F F5 54 11| E9 56 1C 42 8B 7A CA B2
Also on line starting 20: change 5th Column from 56 to 70 so that row starting 20 should read: 20| 66 B9 F6 53 70 ED 2A 5B