Almost immediately after Sony released its new firmware update, 3.21, that removed the "Other OS" function, various techniques of keeping the previous firmware alive and still playing online have been discovered.
One of these techniques is the fake DNS (<a href="https://www.nextgenupdate.com/forums/featured-news/125191-playstation-3-patch-version-3-21-live-bypass.html"target="_blank">See here for more details</a>
Another of the main ways that have been found to enable you to keep the old firmware alive, is by using proxy programs that would tell the server that the current firmware was up to date or rewrite the packet itself (<a href="https://www.nextgenupdate.com/forums/call-duty-modern-warfare-2-exploits-hacks/126349-ps3-patch-blocker-v2-1-a.html">Seehere for NextGenUpdate's own <i>TheUnkn0wn</i>'s program</a>, but it has been reported that neither of these are working any more.
The DNS bypass was originally used by many as a way of holding out for GeoHot's custom firmware to allow the Other OS function. It is my personal opinion that people will continue to push GeoHot for a release of his firmware, as many people believe they can become expert hackers by using it.
A video showing proof that it no longer works is available to watch below.
Sony is yet to confim that they have removed the ability to sign in on previous firmwares by either of these 2 methods, but it is almost guaranteed to have something to do with further security concerns.
Written by eXoSkeleton.
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