if youre psp is at 1.5 then youre fine lol , i suggest you update to 2.00 and then downgrade bk to 1.5 as ive heard about peoples psp being bricked a few days after downgrading, if you just downgrade from 2.0 successfully (following all the instruction carefully) then ull be at a fully functional 1.5, i do not trust the 2.71 downgrader. so i highly recomend you do this, bt it is up to u man

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