Well I have no personal experience so I'm of little help, however from reading online I can say that the R4 and DSTT are two different things. There was a shortage of R4s due to the holiday season and some suppliers sent out DSTTs instead telling customers that it was the new name of the R4. So search DSTT if that's what you have and not R4 for help. Other than that I also found this website for help with the DSTT
http://www.ds-memory.net/getting_started.php
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