If you want to know how to create custom iOS 5.0.1 IPSW to preserve iPhone baseband for unlock you can know it here. The solution is newly released and you need to undergo several steps to do this. Apple Dev team has brought this terrific solution in the name of ‘PwnageTool 5.0.1′. By it, user can create and customize IPSW which allows you to upgrade to iOS 5.0.1and keep the iPhone unlock. You can create firmware for iOS 5.0.1 by PwnageTool 5.0.1 if you want to preserve baseband of your iPhone with the motive of unlocking iPhone using ultrasnow’s latest version.
Following below are the steps for creating custom iOS 5.0.1 IPSW with PwnageTool 5.0.1.
First of all, you need to download iOS 5.0.1 IPSW firmware for your iPhone. Downloading PwnageTool 5.0.1 for Mac OX is also required. Here is Torrent and direct link. Windows users have to wait for Sn0wbreeze.
Install and start PwnageTool in Expert mode. You will see three things i.e. iPhone, iPod Touch and iPad AppleTV but you need to select iPhone.
You will see a browse button on the screen. You need to click on it and open iOS 5.0.1 which you downloaded at the starting of this process.
Then click on “Build”. This will allow PwnageTool to build your custom firmware.
PwnageTool takes some time (approx 10 minutes) to build your custom firmware which will later be jailbroken.
Put your device on DFU mode and follow the instructions that will appear on the screen.
If you don’t have the latest version of iTunes then download it and then select iPhone. Once done, select “Restore” and click on the firmware which was created by PwnageTool earlier.
Preserve your iPhone’s baseband and see to it that it is in unlockable mode.
Therefore, you can now perform these steps or you can also help other people who want to know how to create custom IPSW to preserve iPhone baseband for unlock.