iPhoDroid Team has released a tool ‘Last DFU’, with which you can put your iPhone 3G running iOS 3.0 – iOS 4.1 in DFU (Device Firmware Update) mode, with out having to press the power button. As you know, to put a iOS device in DFU mode, you must press Power & Home buttons in sequence and time is very important. But, with this tiny little tool, you could put your iPhone 3G in DFU with just a click.
Currently, this tool only supports iPhone 3G. Keep in mind that its in its BETA stage (it may be buggy) and its only for Mac users.
How to put your iPhone 3G in DFU with this tool ? Download the tool, Launch iPhoDroid Last DFU, Make sure your device is connected, Click ‘Get in’ to put it in DFU mode / Click ‘Get Out’ to put it out of DFU Mode.