wait a sec, I recall someone posted long time ago some trick how to corrupt memory, the method will erase ALL customer's settings include dishes configuration include locks and password, but it's easy to redo switch check
try to find the post/thread - it was some sort of sequience on remote; you should obtain memory dump screen by that
(within 4 seconds press the keys below)
You should now get the device status & memory dump screen. Press (tv/video) if that does not work, then press the (info) button. A non-volatile memory corrupt message should display. You need this message so if you don't get it start over.
Once you the the non-volatile message you need to unplug your reciever for 15 seconds then plug back in and everything should be reset.