If you are getting the message "no signal" this would indicate that there is a problem with the signal from your dish into your box. Even without a card inserted into a Sky Digibox, if there is a signal, you will always get Sky Guide and the free channels.
Try powering off your box, remove the card, check carefully the cables, especially the connection to the dish, reapply the power and then when asked to insert your card you should then be able to see (for example) Sky News on 501 and the BBC News channel on 503.
Once you can see any channel, reinsert your card. This should, after about one minute, give you the channels you expect, such as 103, 104 and 105.
If you continue to get "No signal", you dish may have been misaligned, or there may be a fault with the cables and connectors, or a problem with the Digibox. You can see the signal strength by pressing SERVICES, then 4-SYSTEM SETUP and 6-SIGNAL STRENGTH.
May I suggest that you perform a complete shutdown of your Sky box, by turning it off with the remote control (so even the faint green light goers out) and then unplug the mains lead either from the wall socket or from the back of the Sky box. Wait at least 2 minutes, then put the mains plug back in again and wait a further 5 minutes. That is tio allow the box to reset it's memory of available channels. After that turn everything back on and check what channels you are getting, programme 101 should be your local BBC1 service.
I have lost all of the BBC chanel's on both my free view box and free sat box ( upstairs and downstairs ) not sure what to do I am an older person so cannot get up in my loft to sort out the aerial or the booster cables and can certainly not able to get up to o the sat dish , but surely if both are failing it cannot be a fault in freesat or digital.......HELP !!!!
june rees: It would have been of assistance if you had mentioned what type of Sky box you are referring to? e.g: Sky standard, Sky+ or Sky+HD. However irrespective of model, carry out a signal check on the box during the next dry spell of weather and check what the strength and quality is indicating as being, as both should be a minimum of around 65% for satisfactory performance and with anything under indicating that the dish is slightly out of alignment, this in most cases being in the horizontal (right / left) plane, usually caused by the dish having moved slightly by either high winds, or accidentally struck with a ball etc.
If though both indications are around that mentioned, then the most likely reason for the problem is water gaining access to the inside of the "F" connector screwed into the dishes LNB, this having to be unscrewed from the LNB then further removed (unscrewed) from the coax for checking / drying out if necessary.
By the way, the levels mentioned do not apply to White Sky+ boxes, as the levels of these boxes never indicate much above 50%, this being OK on them.
For this problem I can find no mention, help or suggestion online. The Sky HD box appears to be working fine. The problem seems to be with the TV to which it's connected. I'm also convinced that the TV is fine; it's more to do with the connection. All I'm getting is that snowy grainy screen and it says 'no signal' and a count down e.g. 4:31, 4:30. 4:29 etc. So....there's no picture just a snowy screen. It was working fine but someone touched something different on the handset and I can't get it back.
Jen: What make and model is your TV? Also, how is your Sky HD box connected, via the older type of SCARTcable with large chunky connectors on each end, or the much smaller HDMI cable with connectors that look similar to a bigger version of a USB plug?
Jen: In addition to StevensOnln1's query, check that the other person referred to has not accidentally set your TV on its analoguereceptionmode rather than the socket (scart or HDMI) your Sky box is connected into, the button in question on the TV's remote control titled "input mode.
This said on the assumption that you are "not" feeding Sky into your TV via an RF connection, i.e: aerial socket.