(adsbygoogle = window.adsbygoogle || []).push({}); right as we know you cant get online with 3.55 cfw so if we qa flagged our ps3 then upgrade to 3.61 i think which was an optional upgrade so then after we have done that we can miss the 3.65 upgrade by the dns settings then we would get online until its patched.

Will not work. If you update you will not be able to downgrade again at will. The button combination changes in the newer firmware, and only the basic QA flag has been released (advanced would be needed in this situation).