downgrade ofw 3.60+ with stock 3.50 or less?
well my friend want to buy a ps3 from a second-hand store and i want to know if will be possible to downgrade to 3 .55 if those two options happen:
1: ps3 comes with OFW 3 .60+ but stock firmware 3 .50 or less
2: ps3 comes with OFW 3 .60+ but stock firmware 3 .60+
the fact is that the other day I updated by mistake my ps3 to 4 .25 thinking it was DEX firmware but was OFW, then I just dowgraded with lv2diag .self method but some ppl say that is impossible ( my ps3 comes with stock firmware 2 .40 )