Nope its v9 and up only because at that point Sony introduced a change in the FW that allows for this. earlier ones do not have this bug/feature. get yourself a psx gameshark it will have the same effect.
Wile we are on the subject I asked this once before but one more time should not be a bother. Is it in theory possible to launch code is PsOne mode from one of these memory card exploits, can anyone think of a way this could possibly be achieved? I ask only out of curiosity I have only mild interest in this in putting such a thing to use.
My Christmas decorations aren't coming down.