So, a friend of mine has a dead-on-arrival 2GB DS-X. (Long story, eventually he got a refund for it.) I have a working 512MB, which I have no real use for (I have now an AK2). I was wondering if someone ever tried soldering the NAND from a 2GB to a 512MB..? If not, someone knows if there are differences in the pcb, except for the NAND?