Disclaimer – I take no responsibility for any problems, issues, bricking or damages that may occur while using said procedure or this software to modify your iPhone. Please be aware of what you are doing. And this will NOT be able to work with iPhone 3GS\
The Dev Team has made it again. They have released a very simple and yet easy to use application called ‘redsnOw’ which works well for all phone except the latest iPhone 3GS.
Let’s get started. First, make sure your iPhone is updated to the 3.0 firmware. If you’re not yet running 3.0, update via iTunes or you may get the latest firmware here
Download iPhone OS 3.0 Build 7A341 Software Update
Next you will need to download the redsn0w from here:
Download redsn0w from one of the links
Now double click on the redsn0w file you just download to open the redsn0w application. You will then be prompted to select the 3.0 IPSW file you downloaded. Do as instructed now. This will be like peanut! Just follow the instruction. Is really so easy. Once it is successfully identified press next to continue.
Now you will have to select whether you’d like Cydia, Icy, or both installed on your phone. You must install at least one of them. Make sure your choices are checked and press next. As for me I have tried on both. But somehow ICY has got some application that make the phone losses all the icons and I have to redo the whole process. Now I omitted the ICY and only select Cydia.
Next you will be connecting your iPhone 3G to your PC. Once your device is connected, hold the power button until the “Slide to Power Off” appears – then slide to power it off. Press next.
Redsn0w will not put your iPhone 3G into DFU mode. Be sure to follow the onscreen instructions exactly. Start by holding down the power button for 3 seconds.
Hold down both both the power button as well as the home button for 10 seconds.
Finally release the power button while continuing to hold the home button down until redsn0w detects your iPhone 3G.
The device will now reboot once it is detected by redsn0w.
Redsn0w will now begin the process of uploading the new ramdisk. Then you will be notified that the jailbreak process is complete. Click the Finish button.
Even though redsn0w completed it’s process your iPhone will still be finishing up. This can take up to 5 minutes. Be patient, when it’s done you will have a jailbroken iPhone 3G with Cydia.
Since I m using a 2G previously unlocked iphone the baseband has not been changed and I works like a charm…