下表中“產品類型”用紅顏色標注，目的是通過“產品類型”來判斷應該選擇哪種類型的固件，比如iPhone4有三種產品類型，iPhone5有兩種產品類型。產品類型可以用愛思助手檢測出來。如下圖為iPhone4s的產品類型：

iPhone5 產品類型 產品描述 iOS版本 固件名稱 iPhone5,1 iPhone5 GSM (支持移動、聯通) 6.1.3 iPhone5,1_6.1.3_10B329_Restore.ipsw 6.1.2 iPhone5,1_6.1.2_10B146_Restore.ipsw 6.1 iPhone5,1_6.1_10B143_Restore.ipsw 6.0.2 iPhone5,1_6.0.2_10A551_Restore.ipsw 6.0.1 iPhone5,1_6.0.1_10A525_Restore.ipsw 6.0 iPhone5,1_6.0_10A405_Restore.ipsw iPhone5,2 iPhone5 GSM、CDMA通用固件 (支持移動、聯通、電信) 6.1.3 iPhone5,2_6.1.3_10B329_Restore.ipsw 6.1.2 iPhone5,2_6.1.2_10B146_Restore.ipsw 6.1 iPhone5,2_6.1_10B143_Restore.ipsw 6.0.2 iPhone5,2_6.0.2_10A551_Restore.ipsw 6.0.1 iPhone5,2_6.0.1_10A525_Restore.ipsw 6.0 iPhone5,2_6.0_10A405_Restore.ipsw    iPhone4S 產品類型 產品描述 iOS版本 固件名稱 iPhone4,1 iPhone4S GSM、CDMA通用固件 (支持移動、聯通、電信) 6.1.3 iPhone4,1_6.1.3_10B329_Restore.ipsw 6.1.2 iPhone4,1_6.1.2_10B146_Restore.ipsw 6.1.1 iPhone4,1_6.1.1_10B145_Restore.ipsw 6.1 iPhone4,1_6.1_10B142_Restore.ipsw 6.0.1 iPhone4,1_6.0.1_10A523_Restore.ipsw 6.0 iPhone4,1_6.0_10A403_Restore.ipsw 5.1.1 iPhone4,1_5.1.1_9B206_Restore.ipsw 5.1 iPhone4,1_5.1_9B179_Restore.ipsw 5.0.1(9A405) iPhone4,1_5.0.1_9A405_Restore.ipsw 5.0.1(9A406) iPhone4,1_5.0.1_9A406_Restore.ipsw 5.0 iPhone4,1_5.0_9A334_Restore.ipsw    iPhone4 產品類型 產品描述 iOS版本 固件名稱 iPhone3,1 iPhone4 GSM (支持移動、聯通) 6.1.3 iPhone3,1_6.1.3_10B329_Restore.ipsw 6.1.2 iPhone3,1_6.1.2_10B146_Restore.ipsw 6.1 iPhone3,1_6.1_10B144_Restore.ipsw 6.0.1 iPhone3,1_6.0.1_10A523_Restore.ipsw 6.0 iPhone3,1_6.0_10A403_Restore.ipsw 5.1.1(9B208) iPhone3,1_5.1.1_9B208_Restore.ipsw 5.1.1(9B206) iPhone3,1_5.1.1_9B206_Restore.ipsw 5.1 iPhone3,1_5.1_9B176_Restore.ipsw 5.0.1 iPhone3,1_5.0.1_9A405_Restore.ipsw 5.0 iPhone3,1_5.0_9A334_Restore.ipsw 4.3.5 iPhone3,1_4.3.5_8L1_Restore.ipsw 4.3.4 iPhone3,1_4.3.4_8K2_Restore.ipsw 4.3.3 iPhone3,1_4.3.3_8J2_Restore.ipsw 4.3.2 iPhone3,1_4.3.2_8H7_Restore.ipsw 4.3.1 iPhone3,1_4.3.1_8G4_Restore.ipsw 4.3 iPhone3,1_4.3_8F190_Restore.ipsw 4.2.1 iPhone3,1_4.2.1_8C148_Restore.ipsw 4.1 iPhone3,1_4.1_8B117_Restore.ipsw 4.0.2 iPhone3,1_4.0.2_8A400_Restore.ipsw 4.0.1 iPhone3,1_4.0.1_8A306_Restore.ipsw 4.0 iPhone3,1_4.0_8A293_Restore.ipsw iPhone3,2 iPhone4 GSM Rev.A 8G版 (支持移動、聯通) 6.1.3 iPhone3,2_6.1.3_10B329_Restore.ipsw 6.1.2 iPhone3,2_6.1.2_10B146_Restore.ipsw 6.1 iPhone3,2_6.1_10B144_Restore.ipsw 6.0.1 iPhone3,2_6.0.1_10A523_Restore.ipsw 6.0 iPhone3,2_6.0_10A403_Restore.ipsw iPhone3,3 iPhone4 CDMA (僅支持電信) 6.1.3 iPhone3,3_6.1.3_10B329_Restore.ipsw 6.1.2 iPhone3,3_6.1.2_10B146_Restore.ipsw 6.1 iPhone3,3_6.1_10B141_Restore.ipsw 6.0.1 iPhone3,3_6.0.1_10A523_Restore.ipsw 6.0 iPhone3,3_6.0_10A403_Restore.ipsw 5.1.1 iPhone3,3_5.1.1_9B206_Restore.ipsw 5.1 iPhone3,3_5.1_9B176_Restore.ipsw 5.0.1 iPhone3,3_5.0.1_9A405_Restore.ipsw 5.0 iPhone3,3_5.0_9A334_Restore.ipsw     iPhone3GS 產品類型 產品描述 iOS版本 固件名稱 iPhone2,1 iPhone3GS GSM (支持移動、聯通) 6.1.3 iPhone2,1_6.1.3_10B329_Restore.ipsw 6.1.2 iPhone2,1_6.1.2_10B146_Restore.ipsw 6.1 iPhone2,1_6.1_10B141_Restore.ipsw 6.0.1 iPhone2,1_6.0.1_10A523_Restore.ipsw 6.0 iPhone2,1_6.0_10A403_Restore.ipsw 5.1.1 iPhone2,1_5.1.1_9B206_Restore.ipsw 5.1 iPhone2,1_5.1_9B176_Restore.ipsw 5.0.1 iPhone2,1_5.0.1_9A405_Restore.ipsw 5.0 iPhone2,1_5.0_9A334_Restore.ipsw 4.3.5 iPhone2,1_4.3.5_8L1_Restore.ipsw 4.3.4 iPhone2,1_4.3.4_8K2_Restore.ipsw 4.3.3 iPhone2,1_4.3.3_8J2_Restore.ipsw 4.3.2 iPhone2,1_4.3.2_8H7_Restore.ipsw 4.3.1 iPhone2,1_4.3.1_8G4_Restore.ipsw 4.3 iPhone2,1_4.3_8F190_Restore.ipsw 4.2.1 iPhone2,1_4.2.1_8C148a_Restore.ipsw 4.1 iPhone2,1_4.1_8B117_Restore.ipsw 4.0.2 iPhone2,1_4.0.2_8A400_Restore.ipsw 4.0.1 iPhone2,1_4.0.1_8A306_Restore.ipsw 4.0 iPhone2,1_4.0_8A293_Restore.ipsw 3.1.3 iPhone2,1_3.1.3_7E18_Restore.ipsw 3.1.2 iPhone2,1_3.1.2_7D11_Restore.ipsw 3.1 iPhone2,1_3.1_7C144_Restore.ipsw 3.0.1 iPhone2,1_3.0.1_7A400_Restore.ipsw 3.0 iPhone2,1_3.0_7A341_Restore.ipsw