If any of you are like me (On firmware 3.50, 3.55, etc. Do not tell me what you are on because I could care less) then avoiding PSN can sometimes be tricky. I have made 2 guides one is simple (Unsure) and the other is a bit harder, but ensures you won't be updated. Guide 1: SIMPLE 1. Disable internet connection. 2. When you are done playing unplug from wall outlet. 3. Profit. Yeah this is pretty much fool proof. Guide 2: BEST METHOD 1. Download DDWRT. 1a. OR if you know how to block DNS from your default router settings go there. 2. Block these URLs Code: post.net.playstation.net get.net.playstation.net fus01.ps4.update.playstation.net feu01.ps4.update.playstation.net deu01.ps4.update.playstation.net ps4updptl.eu.np.community.playstation.net tmdb.np.dl.playstation.net themis.dl.playstation.net sf.api.np.km.playstation.net asm.np.community.playstation.net artcdnsecure.ribob01.net api-p014.ribob01.net apicdn-p014.ribob01.net t-prof.np.community.playstation.net ps4updptl.eu.np.community.playstation.net ps4.updptl.sp-int.community.playstation.net ps4updptl.jp.sp-int.community.playstation.net ps4-eb.ww.np.dl.playstation.net ps4-eb.ww.np.dl.playstation.net 3. Now whenever you try to sign in to PSN an error should occur. If you ever need to use PS Proxy or anything PSN related remove the URLs. Internet still works though so that is a plus! 4. Profit. These methods will help anyone who is a bit unsure. Hope this helps some people on firmware versions waiting to hack!