Please my mtn s720i has two(2) Sim card slots of which one of it is 3g(that is Sim one slot) while the other is 2g(that is Sim 1).Now my help needed from Hovatek is how I can change or convert my Sim 2 to switch or use 3g and 2g if called for. Again, my Sim one is ? for mtn simmers. I want to unlock ? it so that I can use another similar on title. Thank you Hovatek.
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