For iPhone iOS :
15.6 (6s): iPhone_4.7_15.6_19G71_Restore.ipsw
15.6 (6s+): iPhone_5.5_15.6_19G71_Restore.ipsw
15.6 (SE): iPhone_4.0_64bit_15.6_19G71_Restore.ipsw
15.6 (7 GSM+CDMA): iPhone_4.7_P3_15.6_19G71_Restore.ipsw
15.6 (7+ GSM+CDMA): iPhone_5.5_P3_15.6_19G71_Restore.ipsw
15.6 (7 GSM): iPhone_4.7_P3_15.6_19G71_Restore.ipsw
15.6 (7+ GSM): iPhone_5.5_P3_15.6_19G71_Restore.ipsw
15.6 (8 GSM+CDMA)...
Read more
15.6 (6s): iPhone_4.7_15.6_19G71_Restore.ipsw
15.6 (6s+): iPhone_5.5_15.6_19G71_Restore.ipsw
15.6 (SE): iPhone_4.0_64bit_15.6_19G71_Restore.ipsw
15.6 (7 GSM+CDMA): iPhone_4.7_P3_15.6_19G71_Restore.ipsw
15.6 (7+ GSM+CDMA): iPhone_5.5_P3_15.6_19G71_Restore.ipsw
15.6 (7 GSM): iPhone_4.7_P3_15.6_19G71_Restore.ipsw
15.6 (7+ GSM): iPhone_5.5_P3_15.6_19G71_Restore.ipsw
15.6 (8 GSM+CDMA)...
Read more