what do you mean you cant see anything? is the receiver dead? as in no lights are on when the power is on?
or does it say scrambled or bad channel?
if anything...check for the latest keys in the 'New Keys' thread on this forum.
IF you already have latest keys, then try a reboot of your receiver. Turn it off from the back and turn it back on after a minute. It should be fine after that.
ok...and if ur keys are good...then jus do a fresh scan of ur sats
tp's change over time
Basically....do a full factory reset and then rescan ur satellites. That should bring ur channels back.
BTW...wht is ur signal strength and quality? Are you using a switch of any sort? It could possibly be a shorted switch so if you are using a switch of any sort..disengage it and directly connect your wire from the lnb to the receiver.