Important notes before using Custom iOS 4.3.1:
- If you have already installed iOS 4.3.1 on your device just use Redsn0w .
- If you have tethered jailbreak iOS 4.3.1 on your device, you can use Redsn0w to make your device untethered.
- If you run iBooty for Windows so you have to use Redsn0w for Windows and the same on Mac.
- You should use Custom IPSW if you want to keep your lower baseband on iOS 4.3.1.
- If you rely on ultrasn0w unlock you MUST stay away from upgrading to iOS 4.3.1 untill dev-team upgrade ultrasn0w to work on iOS 4.3.1 on the unlockable basebands OR if You need to Update to iOS 4.3.1 and preserve your old Baseband you can use this Guide
- Download iPhone 4 iOS 4.3.1 Custom ipsw untethered - Activated ( for users who are not on official carrier SIM card)
- Dwonload iPhone 4 iOS 4.3.1 Custom ipsw untethered - Unactivated (for users who are on official carrier SIM card)
- Download iPhone 3GS iOS 4.3.1 Custom ipsw untethered - Activated ( for users who are not on official carrier SIM card)
- Download iPhone 3GS iOS 4.3.1 Custom ipsw untethered - unactivated (for users who are on official carrier SIM card)
- Download iPad 1 iOS 4.3.1 Custom ipsw untethered
- Download iPod Touch 4G iOS 4.3.1 Custom ipsw untethered
- Download iPod Touch 3G iOS 4.3.1 Custom ipsw untethered