Untethered jailbreak iOS 5.0.1 has been successfully released for some time now and jailbreakers are finally able to move on from the tethered jailbreak. Tools such as Redsn0w for windows have been updated to jailbreak iOS 5.0.1 untethered.
This tutorial will teach you not only to jailbreak your iPhone 4 running on iOS 5.0.1 but also teach you to preserve your baseband incase a future firmware update renders your iPhone unlockable.
We will be using PwnageTool 5.0.1 which is of course a tool for Mac users. Windows users can check out the redsn0w guide to jailbreak iOS 5.0.1 untethered.
[Step 1 ]: Grab the latest PwnageTool 5.0.1 for Mac OS X
[Step 2 ]: PwnageTool will give you an option to select your device . Choose your device and click next.
[Step 3 ] : Now you need to download the correct iOS firmware, which in this case is iOS 5.0.1. PwnageTool will automatically scan for this firmware on your desktop. If it can’t then just use expert mode to browse for the location of the firmware on your Mac and point PwnageTool to it
[Step 4 ] : Now it would ask you to build the custom IPSW. Just tell it where to save your custom iPSW file.
[Step 5 ] : After the build is complete follow on screen instructions to place your device in pwnedDFU mode to restore from iTunes using your newly created custom IPSW.
[Step 6 ]: Now this is the most important part. Make sure that you select your custom IPSW when restoring from iTunes otherwise you would end up upgrading your baseband, which is exactly what we don’t want to do.
[Step 7 ] : Now just let iTunes do its work and when it’s finished you would be the proud owner of a untethered jailbroken iPhone running on iOS 5.0.1 with preserved baseband. AWESOME!
Now you can go and install Cydia, mobilesubstrate or any other package to your liking. And if your iPhone meets the baseband requirements grab ultrasn0w from Cydia to unlock your iPhone running on untethered jailbreak iOS 5.0.1. You can check out that guide here to unlock your iPhone using ultrasn0w.
Were you able to preserve your baseband and jailbreak successfully? Leave a question in the comment section below.