Geohot has released RC2 of his Blackra1n jailbreak for the iPhone and iPod touch. This version provides a tethering jailbreak for the new iPhone 3GS with the updated Bootrom.
What’s New:
- Fixed 3G issues
- Tethered jailbreak for 3.1 OOTB ipt 8GB and new 3GSes
- Fixed Icy issues
- Both Windows and Mac
- If you used RC1 with success, no need to rerun.

Pres-requisites:
* An iPhone v1 EDGE / 3G/iPhone 3GS iPhone with firmware 3.1 or
3.1.2
* An iPod Touch 1G / 2G / 3G (for 3G you’ll have to jailbreak at each reboot but temporary)
* The software Jailbreak BlackRa1n by geohot

Step 1: Update iTunes to the latest version available and reboot your computer.
Step 2: Download BlackRa1n RC2 from our iPhone downloads page and install it, then reboot your computer.
Step 3: Plug your iPhone in your computer and launch BlackRa1n RC2. Click on “make it ra1n”.
Step 4: Your iPhone will enter recovery mode. The regular recovery mode image on your iPhone will be replaced by a picture of GeoHot (same as image above).
Step 5: BlackRa1n will run on your iPhone and then it will reboot.
Step 6: Once your iPhone reboots, you will have 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 but you may install them all if you want to.
BlackRa1n will download and install the selected applications.
Step 8: Once done installing, your iPhone will respring and you should see your installer app 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!

Filed under: Jailbreak/Unlock, iPhone