... cover, and change the paper Keys1 key: 12 key: a, b, c, A, B, C, 23 key:d, e, f, D, E, F ... , L, 56 key:m, n, o, M, N, O, 67 key:p, q, r, s, P, Q, R, S, 78 key:t, u ... data transmission, suggest prohibiting all voice and SMS functions in this SIM card)2. Install GSM antenna3. Connect power ... operator to confirm.If User name and Password is a must in your country, please entry the related info,Referencing ...