         Sentence’. I: -Héw ‘can’ wé  know. if, a dual. sim. mobile  is ‘also:a dual:.4G or dual  LTE just from Les  specifications?    Sentence 2:° How “should” T  update ..to~. Android. -KitKat  4£4.4 from. Jelly: Bean in’a  hSantsung . Galaxy. Grand.. Duas  Dual. Sim?