iPhone 3.1.3 OS / 3.1.2 OS Download Links
We all know the iPhone IOS 4 has been released and everyone is looking to update the iPhone Firmware, who were using iPhone 3.1.3 OS or iPhone 3.1.2 OS previously. But Guys there is no need to rush into the sequence, where Unlocker and Jailbreaks are still to come for the iPhone IOS 4.
So i have been surfing to find the solution and just i found out some important links to download Old iPhone Firmwares. These iPhone firmware can be used for the Downgrade Process, if users want to Downgrade from iPhone IOS 4 to the below mentioned iPhone Old Firmwares.
OLD FIRMWWARE are :
Please note down, that if you do not know how to use these Firmware in the process of Update Manually oor in the process of Downgrade of iPhone OS, do not try it, it can lead your device down to zero and your device can be ended up having carrier support problems.
Src: iPhone Official OS links via Redmondpie