No. It was someone else. He told me on MSN that he tried it and got an "error while flashing bank 18" or something like that. The drive didn't react anymore and couldn't be flashed back.
This could have several meanings. Either it was just an accident while flashing his drive and usually everything should work fine. Or Binflash is unable to flash 3540 drives correctly. Or flashing a 3540 firmware on 3530 drives simply doesn't work. (They could have installed some kind of trap for this in their firmware, but I don't think so)