Well, let me think?
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thinking...
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still thinking...
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since this problem is known since HGSS released in Japan and the tools still aren´t running with it, I´d like to take the liberty to make an educated guess and say NO, NOT FOR THE MOMENT! Chase-San seems to be able to dump a sav from the retail cart, but as of now wasn´t able to reload a save back into the cart and even the first seems to be a gamble.