Here you will find all of the firmware files (ipsw) for your iPhone 2G 3G 3GS 4 and 4S.  The list is constantly updated as newer firmware files are released.  The download links redirect to Apple’s servers (which is what iTunes uses to download the firmware files).  Note, for the iPhone 4, there are two types of firmwares; one is the GSM meaning iPhones that have a sim card (in the USA the company is AT&T) and the other is CDMA meaning iphnes which dont have a sim card slot (in the USA the company is Verizon).  Please note that if the firmware comes up as a zip file that means your internet browser unpacked it for you.  We recommend you use Mozilla Firefox or Apple Safari as your browser for a successful download.

1.0 (2G): iPhone1,1_1.0_1A543a_Restore.ipsw
1.0.1 (2G): iPhone1,1_1.0.1_1C25_Restore.ipsw
1.0.2 (2G): iPhone1,1_1.0.2_1C28_Restore.ipsw
1.1.1 (2G): iPhone1,1_1.1.1_3A109a_Restore.ipsw
1.1.2 (2G): iPhone1,1_1.1.2_3B48b_Restore.ipsw
1.1.3 (2G): iPhone1,1_1.1.3_4A93_Restore.ipsw
1.1.4 (2G): iPhone1,1_1.1.4_4A102_Restore.ipsw

iOS 2

2.0 (2G): iPhone1,1_2.0_5A347_Restore.ipsw
2.0 (3G): iPhone1,2_2.0_5A347_Restore.ipsw

2.0.1 (2G): iPhone1,1_2.0.1_5B108_Restore.ipsw
2.0.1 (3G): iPhone1,2_2.0.1_5B108_Restore.ipsw

2.0.2 (2G): iPhone1,1_2.0.2_5C1_Restore.ipsw
2.0.2 (3G): iPhone1,2_2.0.2_5C1_Restore.ipsw

2.1 (2G): iPhone1,1_2.1_5F136_Restore.ipsw
2.1 (3G): iPhone1,2_2.1_5F136_Restore.ipsw

2.2 (2G): iPhone1,1_2.2_5G77_Restore.ipsw
2.2 (3G): iPhone1,2_2.2_5G77_Restore.ipsw

2.2.1 (2G): iPhone1,1_2.2.1_5H1_Restore.ipsw
2.2.1 (3G): iPhone1,2_2.2.1_5H11_Restore.ipsw

iOS 3

3.0 (2G): iPhone1,1_3.0_7A341_Restore.ipsw
3.0 (3G): iPhone1,2_3.0_7A341_Restore.ipsw
3.0 (3GS): iPhone2,1_3.0_7A341_Restore.ipsw

3.0.1 (2G): iPhone1,1_3.0.1_7A400_Restore.ipsw
3.0.1 (3G): iPhone1,2_3.0.1_7A400_Restore.ipsw
3.0.1 (3GS): iPhone2,1_3.0.1_7A400_Restore.ipsw

3.1 (2G): iPhone1,1_3.1_7C144_Restore.ipsw
3.1 (3G): iPhone1,2_3.1_7C144_Restore.ipsw
3.1 (3GS): iPhone2,1_3.1_7C144_Restore.ipsw

3.1.2 (2G): iPhone1,1_3.1.2_7D11_Restore.ipsw
3.1.2 (3G): iPhone1,2_3.1.2_7D11_Restore.ipsw
3.1.2 (3GS): iPhone2,1_3.1.2_7D11_Restore.ipsw

3.1.3 (2G): iPhone1,1_3.1.3_7E18_Restore.ipsw
3.1.3 (3G): iPhone1,2_3.1.3_7E18_Restore.ipsw
3.1.3 (3GS): iPhone2,1_3.1.3_7E18_Restore.ipsw

iOS 4

4.0 (3G): iPhone1,2_4.0_8A293_Restore.ipsw
4.0 (3GS): iPhone2,1_4.0_8A293_Restore.ipsw
4.0 (4): iPhone3,1_4.0_8A293_Restore.ipsw

4.0.1 (3G): iPhone1,2_4.0.1_8A306_Restore.ipsw
4.0.1 (3GS): iPhone2,1_4.0.1_8A306_Restore.ipsw
4.0.1 (4): iPhone3,1_4.0.1_8A306_Restore.ipsw

4.0.2 (3G): iPhone1,2_4.0.2_8A400_Restore.ipsw
4.0.2 (3GS): iPhone2,1_4.0.2_8A400_Restore.ipsw
4.0.2 (4): iPhone3,1_4.0.2_8A400_Restore.ipsw

4.1 (3G): iPhone1,2_4.1_8B117_Restore.ipsw
4.1 (3GS): iPhone2,1_4.1_8B117_Restore.ipsw
4.1 (4): iPhone3,1_4.1_8B117_Restore.ipsw

4.2.1 (3G): iPhone1,2_4.2.1_8C148_Restore.ipsw
4.2.1 (3GS): iPhone2,1_4.2.1_8C148a_Restore.ipsw
4.2.1 (4): iPhone3,1_4.2.1_8C148_Restore.ipsw

4.2.6 (4 CDMA): iPhone3,3_4.2.10_8E600_Restore.ipsw
4.3 (3GS): iPhone2,1_4.3_8F190_Restore.ipsw
4.3 (4 GSM): iPhone3,1_4.3_8F190_Restore.ipsw

4.3.1 (3GS): iPhone2,1_4.3.1_8G4_Restore.ipsw
4.3.1 (4 GSM): iPhone3,1_4.3.1_8G4_Restore.ipsw

4.3.2 (3GS): iPhone2,1_4.3.2_8H7_Restore.ipsw
4.3.2 (4 GSM): iPhone3,1_4.3.2_8H7_Restore.ipsw

4.2.7 (4 CDMA): iPhone3,3_4.2.7_8E303_Restore.ipsw
4.2.8 (4 CDMA): iPhone3,3_4.2.8_8E401_Restore.ipsw

4.3.3 (3GS): iPhone2,1_4.3.3_8J2_Restore.ipsw
4.3.3 (4 GSM): iPhone3,1_4.3.3_8J2_Restore.ipsw

4.2.9 (4 CDMA): iPhone3,3_4.2.9_8E501_Restore.ipsw
4.3.4 (3GS): iPhone2,1_4.3.4_8K2_Restore.ipsw
4.3.4 (4 GSM): iPhone3,1_4.3.4_8K2_Restore.ipsw
4.2.10 (4 CDMA): iPhone3,3_4.2.10_8E600_Restore.ipsw
4.3.5 (3GS): iPhone2,1_4.3.5_8L1_Restore.ipsw
4.3.5 (4 GSM): iPhone3,1_4.3.5_8L1_Restore.ipsw

iOS 5

5.0 (3GS): iPhone2,1_5.0_9A334_Restore.ipsw
5.0 (4 GSM): iPhone3,1_5.0_9A334_Restore.ipsw
5.0 (4 CDMA): iPhone3,3_5.0_9A334_Restore.ipsw
5.0 (4S): iPhone4,1_5.0_9A334_Restore.ipsw

5.0.1 (3GS): iPhone2,1_5.0.1_9A405_Restore.ipsw
5.0.1 (4 GSM): iPhone3,1_5.0.1_9A405_Restore.ipsw
5.0.1 (4 CDMA): iPhone3,3_5.0.1_9A405_Restore.ipsw
5.0.1 (4S): iPhone4,1_5.0.1_9A405_Restore.ipsw
5.0.1 (4S) [9A406]: iPhone4,1_5.0.1_9A406_Restore.ipsw

5.1 (3GS): iPhone2,1_5.1_9B176_Restore.ipsw
5.1 (4 GSM): iPhone3,1_5.1_9B176_Restore.ipsw
5.1 (4 CDMA): iPhone3,3_5.1_9B176_Restore.ipsw
5.1 (4S): iPhone4,1_5.1_9B179_Restore.ipsw

5.1.1 (3GS): iPhone2,1_5.1.1_9B206_Restore.ipsw
5.1.1 (4 GSM): iPhone3,1_5.1.1_9B206_Restore.ipsw
5.1.1 (4 GSM Build 9B208): iPhone3,1_5.1.1_9B208_Restore.ipsw
5.1.1 (4 CDMA): iPhone3,3_5.1.1_9B206_Restore.ipsw
5.1.1 (4S): iPhone4,1_5.1.1_9B206_Restore.ipsw

iOS 6

6.0 (3GS): iPhone2,1_6.0_10A403_Restore.ipsw 
6.0 (4 GSM): iPhone3,1_6.0_10A403_Restore.ipsw
6.0 (4 CDMA): iPhone3,3_6.0_10A403_Restore.ipsw
6.0 (4S): iPhone4,1_6.0_10A403_Restore.ipsw
6.0 (5 GSM): iPhone5,1_6.0_10A405_Restore.ipsw
6.0 (5 CDMA): iPhone5,2_6.0_10A405_Restore.ipsw

6.0.1 (3GS): iPhone2,1_6.0.1_10A523_Restore.ipsw
6.0.1 (4 GSM): iPhone3,1_6.0.1_10A523_Restore.ipsw
6.0.1 (4): iPhone3,2_6.0.1_10A523_Restore.ipsw
6.0.1 (4 CDMA): iPhone3,3_6.0.1_10A523_Restore.ipsw
6.0.1 (4S): iPhone4,1_6.0.1_10A523_Restore.ipsw
6.0.1 (5 GSM): iPhone5,1_6.0.1_10A525_Restore.ipsw
6.0.1 (5 CDMA): iPhone5,2_6.0.1_10A525_Restore.ipsw

6.0.2 (5 GSM): iPhone5,1_6.0.2_10A551_Restore.ipsw
6.0.2 (5 CDMA (Verizon/Sprint)): iPhone5,2_6.0.2_10A551_Restore.ipsw

6.1 (3GS): iPhone2,1_6.1_10B141_Restore.ipsw
6.1 (4 GSM): iPhone3,1_6.1_10B144_Restore.ipsw
6.1 (4): iPhone3,2_6.1_10B144_Restore.ipsw
6.1 (4 CDMA): iPhone3,3_6.1_10B141_Restore.ipsw
6.1 (4S): iPhone4,1_6.1_10B142_Restore.ipsw
6.1  (5 GSM): iPhone5,1_6.1_10B143_Restore.ipsw
6.1 (5 CDMA): iPhone5,2_6.1_10B143_Restore.ipsw
6.1.1 (4S): iPhone4,1_6.1.1_10B145_Restore.ipsw
6.1.2 (3GS): iPhone2,1_6.1.2_10B146_Restore.ipsw 
6.1.2 (4 GSM): iPhone3,1_6.1.2_10B146_Restore.ipsw
6.1.2 (4): iPhone3,2_6.1.2_10B146_Restore.ipsw
6.1.2 (4 CDMA): iPhone3,3_6.1.2_10B146_Restore.ipsw
6.1.2 (4S): iPhone4,1_6.1.2_10B146_Restore.ipsw
6.1.2 (5 GSM): iPhone5,1_6.1.2_10B146_Restore.ipsw
6.1.2 (5 CDMA): iPhone5,2_6.1.2_10B146_Restore.ipsw

6.1.3 (3GS): iPhone2,1_6.1.3_10B329_Restore.ipsw
6.1.3 (4 GSM): iPhone3,1_6.1.3_10B329_Restore.ipsw
6.1.3 (4): iPhone3,2_6.1.3_10B329_Restore.ipsw
6.1.3 (4 CDMA): iPhone3,3_6.1.3_10B329_Restore.ipsw
6.1.3 (4S): iPhone4,1_6.1.3_10B329_Restore.ipsw
6.1.3 (5 GSM): iPhone5,1_6.1.3_10B329_Restore.ipsw
6.1.3 (5 CDMA): iPhone5,2_6.1.3_10B329_Restore.ipsw