Ultimately, the instrument PwnageTool 4.1 has been released and upadate to 4.1.2. You can use it to get custom firmware without updating the baseband (2.10.4 / 05.14.2002) for the iPhone 4, iPhone 3G and iPhone 3G running IOS 4.1, so you can unlock it using the existing version of Ultrasn0w. This version also supports hacktivation PwnageTool.
PwnageTool 4.1 supports: 4 iPhone, iPhone 3G (new bootrom), iPhone 3G, Apple TV, iPad and iPod touch 4G / 3G. Follow the instructions below to jailbreak any of the aforementioned devices run on 4.1 with PwnageTool iOS.
Step 1: Download and install the latest version of iTunes.
Step 2: Now start iTunes and sync your iPhone with your PC or Mac to back up all your important data, including configuration, applications, music, contacts and photos.
Step 3: Download PwnageTool 4.1.2 and the original version of IOS 4.1 for iPhone. Move all these files to your desktop.
Step 4: Start PwnageTool 4.1.2 and select the device.
Step 5: PwnageTool 4.1 will now automatically detect the correct firmware for your team.
Step 6: Click "No"when PwnageTool shows you this warning:"Do you have an iPhone contract That Would Normally activate-throughiTunes? "
By clicking "Yes"will update the baseband to the latest version. Click "Yes"only if you're in an official company like AT & T.
Step 7: PwnageTool 4.1 will now begin to build an archive. IPSW for your iDevice.
Step 8: Now follow the following steps to enter DFU mode:
* Hold down the Power and Home buttons for 10 seconds
* Now release the power button but hold the Home button for 10 seconds
* Now your device should now be in DFU mode
Step 9: Now you have to restore the iPhone, iPad (IOS 3.2.2) or iPod touch to this custom firmware 4.1 that you just run. Open iTunes, click the icon in your iTunes sidebar. Now press and hold the left button "alt"("Shift"in Windows) on your keyboard and then click"Restore"(not"Update"or"Check for Update"), located in the iTunes and then release the buttonShift. "
This will cause iTunes prompted to select the file location of your custom firmware 4.1. Select the required custom file. Ipsw and click "Open. "
Step 10: Now wait and enjoy as iTunes does the job. This will involve a series of automated steps. Be patient at this time. You just have to wait for iTunes to install the new firmware 4.1 on your iPhone, iPad (IOS 3.2.2) or iPod touch. IOS the screen of your device at this point will display a progress bar in your installation. After the installation has finished, your iPhone, iPad or iPod touch will automatically restart and you should now have a fully jailbroken device under iOS 4.1.
How to unlock iOS 4.1 (Old Baseband)
Follow this complete guide posted here to unlock the iPhone 4, iPhone 3G and the iPhone 3G, 4.1 with an old iOS baseband using Ultrasn0w.
Step 11: Once you're done with the unlock and jailbreak process. Now you can restore all settings, applications, music, contacts and photos to the version 4.1 firmware you just installed by restoring the backup you made in step 2 from iTunes.
Download PwnageTool 4.1.2 for Mac
Download iTunes 10.0.1 for Windows and Mac OS X
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