One thing I can't understand is, the current R-SIM 12+ V10.1 shows "Select Carrier", "Edit IMSI" and "TMSI.2G/3G/4G" in the SIM Applications settings but none of these work, when you press on these options, the screen just flashes for a second but nothing happens.
Similarly, if I press "select carrier" and select one of the listed ones (e.g. US AT&T), nothing happens, just a quick flash on the screen !!!
If these options are not programmed in the current configuration then what's the point of giving them in the menu???