For everybody looking to sim unlock their SM- and EK- serie Samsung phones please do NOT submit your phone for unlock by IMEI at the moment.
These models are NOT supported by the normal old Samsung database. There is a new product for these models. We will make these product available on the site as soon as possible. Also these models are not yet supported by any unlock by cable solution. We're working on that as well.
Some of the models affected: N900W8, SEG-I537, EK-GC100, SM-G730A, SM-N900T, SM-T311/T31)