download link: http://transfersend.com/NicholeLeduc141/iphone
The following step by step guide will help you jailbreak your iPhone 3G ONLY (for now) on iPhone OS 4.
Step 1: Download iPhone OS 4 for iPhone 3G if it is ios4 then start from step 3.
Step 2: Update to this latest firmware file: iPhone1,2_4.0_8A230m_Restore.ipsw
STEP 3: This jailbreaking requires latest itunes setup itunes 9.2 for ios4
Step 5: Start redsn0w 0.9.5 and point it to the original iPhone OS 4 Beta firmware for iPhone 3G to proceed.
Step 6: Now select "Install Cydia" and click "Next".
Step 7: Now make sure your device is both OFF and PLUGGED IN to the computer before you click "Next".
Step 8: Connect your device in recovery mode by pressing the Power and buttons continuously.
t this stage you will be presented with a screen where you will have to quickly hold "Power" button and then while holding the "Power" button, you will now have to hold "Home" button too. Now after few seconds release "Power" button but keep holding "Home" button until installation begins.
Step 9: Sit back and enjoy while redsn0w will do all the rest for you. Once done, your iPhone 3G will restart automatically and you will find it jailbroken with iPhone firmware version 4.0.