iOS 4 firmware files

If you need a past or present iPhone, iPad, iPod touch, or Apple TV iOS 4 firmware file, we've got 'em all here. Just browse to the device you want and click the firmware file you need. Your download should automatically start. All downloads are the official Apple firmware release versions.

iPhone 4 (GSM)

• 4.3.5{.nofollow}
• 4.3.4{.nofollow}
• 4.3.3{.nofollow}
• 4.3.2{.nofollow}
• 4.3.1{.nofollow}
• 4.3{.nofollow}
• 4.2.1{.nofollow}
  • 4.1{.nofollow}
• 4.0.2{.nofollow}
• 4.0.1{.nofollow}
• 4.0

iPhone 4 (CDMA)

• 4.3.5{.nofollow}
• 4.2.9{.nofollow} - 4.2.8{.nofollow}
• 4.2.7{.nofollow}

iPhone 3GS

• 4.3.5{.nofollow}
• 4.3.4{.nofollow}
• 4.3.3{.nofollow}
• 4.3.2{.nofollow}
• 4.3.1{.nofollow}
• 4.3{.nofollow}
• 4.2.1{.nofollow}
• 4.1{.nofollow}
• 4.0.2{.nofollow}
• 4.0.1{.nofollow}
• 4.0

iPhone 3G

• 4.2.1{.nofollow}
• 4.1{.nofollow}
• 4.0.2{.nofollow}
• 4.0.1{.nofollow}
• 4.0

iPad 2 (Wifi only)

• 4.3.5{.nofollow}
• 4.3.4{.nofollow}
• 4.3.3{.nofollow}
• 4.3.2{.nofollow}
• 4.3.1{.nofollow}
• 4.3{.nofollow}

iPad 2 (GSM)

• 4.3.5{.nofollow}
• 4.3.4{.nofollow}
• 4.3.3{.nofollow}
• 4.3.2{.nofollow}
• 4.3.1{.nofollow}
• 4.3{.nofollow}

iPad 2 (CDMA)

• 4.3.5{.nofollow}
• 4.3.4{.nofollow}
• 4.3.3{.nofollow}
• 4.3.2{.nofollow}
• 4.3.1{.nofollow}
• 4.3{.nofollow}

iPad

• 4.3.5{.nofollow}
• 4.3.4{.nofollow}
• 4.3.3{.nofollow}
• 4.3.2{.nofollow}
• 4.3.1{.nofollow}
• 4.3{.nofollow}
• 4.2.1{.nofollow}

iPod touch (4G)

• 4.3.5{.nofollow}
• 4.3.4{.nofollow}
• 4.3.3{.nofollow}
• 4.3.2{.nofollow}
• 4.3.1{.nofollow}
• 4.3{.nofollow}
• 4.2.1{.nofollow}
• 4.1{.nofollow}

iPod touch (3G)

• 4.3.5{.nofollow}
• 4.3.4{.nofollow}
• 4.3.3{.nofollow}
• 4.3.2{.nofollow}
• 4.3.1{.nofollow}
• 4.3{.nofollow}
• 4.2.1{.nofollow}
• 4.1{.nofollow}
• 4.0.2{.nofollow}
• 4.0

iPod touch (2G)

• 4.2.1{.nofollow}
• 4.1{.nofollow}
• 4.0.2
• 4.0

Source: Apple.com