Mag & STBEmu app
If you are seeing the blue screen saying "STB Blocked contact your provider" this is basically nonsense and the default screen for every problem. I can guarantee you will never be blocked. What this really means is your device is unable to connect to the server. This will be down to you have lost internet connection, or the sub or test has expired.
If this isn't the case, in very rare circumstances the server my be down, you can check this on the Facebook page
"John Doe Streams."