1. First thing to do is, check the HDMI cable, possibilities that the HDMI cable is broken,2nd check the Mute in Telus Remote. 3rd Try rebooting the box first ( i would suggest to unplug the power cable for about a minute or 2. 4th if all the trouble...
I would suggest no to do so, but you can try to turn it for a minute or two and check if the Fail light will gone, if not, then i prefer to call the technical support so they can do their magic.
Hope This One would help. This was Posted by Drew I get the error code 4-44-140 Figured it out. Adblock was causing it. Disabled it and it is working again