iOS 11.2.6 (iPhone 5s GSM): iPhone_4.0_64bit_11.2.6_15D100_Restore.ipsw iOS 11.2.6 (iPhone 5s GSM+CDMA): iPhone_4.0_64bit_11.2.6_15D100_Restore.ipsw iOS 11.2.6 (iPhone 6 Plus): iPhone_5.5_11.2.6_15D100_Restore.ipsw iOS 11.2.6 (iPhone 6): iPhone_4.7_11.2.6_15D100_Restore.ipsw iOS 11.2.6 (iPhone 6s): iPhone_4.7_11.2.6_15D100_Restore.ipsw iOS 11.2.6 (iPhone 6s Plus): iPhone_5.5_11.2.6_15D100_Restore.