How To Jailbreak & Unlock iPhone 4/3Gs/3G 4.2.1/4.3.1 With Baseband Preserving Sn0wbreeze/Pwnagetool

Step 1: Download 4.2.1 firmware here tinyurl.com Step 2: Download Sn0wbreeze here tinyurl.com Step 3: Run Sn0wbreeze and locate the your 4.2.1 firmware Step 4: Select expert mode Step 5: If you are running an unlock, make sure you select Activate. If you are on ATT make sure you uncheck Activate Step 6: Select whichever packages you want to be included into your firmware Step 7: Build ipsw Step 8: Plug device in and enter DFU mode by following the on screen instructions Step 9: Open iTunes and hold shift and click on restore and select the sn0wbreeze firmware you just built Step 10: Enjoy! If you get any errors, try switching usb ports or cables