http://blackra1n.com/
Geohot released Blackra1n at 3:33am Sunday 10-11-09. I have a Week 37 iPhone 3gs that shipped with 3.1 OTB - out of the box. So this is the first app to allow me to jailbreak it. This tutorial is for the PC version of Blackra1n. There is a mac version also.
BlackRa1n will not unlock your iPhone. Also you should not update to 3.1.2 if you want to be able to unlock. If that’s your case, you will have to wait for the Dev Team to update PwnageTool.
This tutorial was written for an iPhone 3GS but the process is exactly the same for all iPhones.
How to Jailbreak Your iPhone Using BlackRain:
Step 1: Update iTunes to the latest version available, (as of 10-14-09 its iTunes 9), and reboot your computer. 3.1.2 is the lastest iPhone firmware at this time. (My iPhone 3gs was on 3.1 and this still worked. For others it did not.)
Step 2: Download BlackRa1n: http://blackra1n.com/
Step 3: Plug your iPhone to your computer and launch BlackRa1n. Click on “make it ra1n”.
Step 4: Your iPhone will now enter recovery mode. The regular recovery mode image on your iPhone will be replaced by a picture of GeoHot.
Step 5: BlackRa1n will run on your iPhone and then it will reboot.
Step 6: Once your iPhone reboots, you will notice a new icon on your springboard. This is BlackRa1n. Now make sure you have internet connection and launch BlackRa1n on your iPhone.
Step 7: Choose what installer applications you want to install on your iPhone and then tap “Install”. I suggest only installing Cydia.
BlackRa1n will download and install Cydia.
Step 8: Once done installing, your iPhone will respring and you should see Cydia on your springboard.
Step 9: Once your installer app (Cydia in our case) is installed. You can safely uninstall BlackRa1n by launching the app and selecting “uninstall balckra1n”.
Step 10: Reboot your iPhone. You’re done!
Now the first thing to do after Jailbreaking your iPhone and getting Cydia installed is to update Cydia. Then I would use Cydia to install Winterboard. This allows you to install tons of themes. Finally open up Cydia, go to manage, then sources. Hit EDIT then ADD. And add: http://cydia.hackulo.us/
Cydia will now add a Hackulo.us folder in SECTIONS. Go to SECTIONS in Cydia and click Hackulo.us. Then scroll down to Installous. Install it. Once you are done you will have an Installous icon on your springboard. With Installous, you will be able to install all sorts of apps.
