How do I enable Dual SIM?
To enable or disable, run the following command from adb or terminal emulator and then reboot. SIM Settings can then be found in Settings -> Multi Sim Settings.
setprop persist.radio.multisim.config dsds
setprop persist.radio.multisim.config none
-Note that Dual SIM mode currently has the following limitations:
-Both SIMs are always enabled (no way to disable one SIM)
-"Receive incoming call while data is enabled" is always enabled
-The QuickSettings tile will display the status for the currently selected SIM for data
-There is no arrow activity indicator in the status bar.
-Changing 2G/3G network mode using the QuickSettings toggle is not supported, only do it from Settings.
-Changing 2G/3G mode in Settings may show too many options if the language used is not English. If more than 3 options is shown, only use the 3 top options (which will be WCDMA only/GSM only/WCDMA preferred regardless of the actual label shown).
-3G may not work properly if Dual SIM mode is enabled with only 1 SIM inserted
-Cannot set different ringtone for each SIM
-Baseband version not displayed in Settings
Posted By k2wl
Duel Sim Patch HERE
NB: YOU HAD BETTER READ THIS ONCE MORE