Check on the adapter's power light.
If the adapter's power light is ON, please refer to Blank Screen troubleshooting steps here.
Otherwise, if the adapter's power light is OFF, switch off the power of your box.
Ensure power cable is connected tightly. Plug in power cable to different power socket and switch on the plug.
You should no longer be experiencing this problem. If issue remains, proceed to STEP 3.
Try a different power socket to connect the equipment. Turn on the power socket and check the adapter's power light.
If there is no light on your power adaptor's, please submit your feedback form and attach a picture of your smart card number for assistance.
Please indicate in the form if there is lightning strike/thunderstorm/power trip happened earlier.