STEP 1: Download purplera1n and iTunes :
STEP 1: Download purplera1n and iTunes Download the latest version of purplera1n and iTunes .
Install OS 3.0 for your iPhone 3GS.
Connect you iPhone to your computer.
STEP 2: Run the purplera1n :
STEP 2: Run the purplera1n Backup all contents on iPhone 3G.
Double click the purplera1n.exe to run it. Click “make it ra1n” Wait for iPhone 3GS to enter recovery mode. And Purplera1n will reboot the iPhone 3GS device.
STEP 3: Install cydia and jailbreak it :
STEP 3: Install cydia and jailbreak it After iPhone 3GS boot up, you will find a icon called freeze, click it to run.
Click install cydia, it will start to download and install the cydia untill it shows finished.
If the Cydia does not show up after Freeze is completed, reboot the iPhone 3GS.
Launch Cydia and let it run all the necessary updates.
STEP 3: Install cydia and jailbreak it :
STEP 3: Install cydia and jailbreak it After iPhone 3GS boot up, you will find a icon called freeze, click it to run.
Click install cydia, it will start to download and install the cydia untill it shows finished.
If the Cydia does not show up after Freeze is completed, reboot the iPhone 3GS.
Launch Cydia and let it run all the necessary updates.
STEP 4: Unlock your iPhone 3GS :
STEP 4: Unlock your iPhone 3GS After the last auto reboot, your iphone has been jailbroken, open the cydia and add repo666.ultrasn0w.com to your sources.(The “0” of sn0w is zero)
Install ultrasn0w and reboot it
Your iPhone is unlocked!
NOTE: Jailbreak is illegal!