A few weeks back we saw his PS4 Ghosts RTE Mod Tool, and now @Modded Warfare is back with a guide on how to block PS4 updates on any PlayStation 4 Firmware from his YouTube Channel. :)
Those seeking a similar block list that covers more host names can also check HERE, and to quote from the...
I'm pretty spooked right now. I am on 4.01 and would like to stay there. I am using my proxy so I can stay online but the update still downloaded. I don't want to be using my playstation and accidentally click "install now."