If you are one of the lucky people that currently has iOS 5 installed on your iPhone, iPad or iPod touch, you might be thinking about Jailbreak iPhone 4S and iOS 5 Redsn0w 0.9.9b5 Untethered. If that sounds about right, you’ve come to the right place. Thanks to the work of the iPhone Dev-Team, you can tether-jailbreak your iOS 5 device using Redsn0w 0.9.9b5 by following this simple tutorial.
So, if you own a supported device that’s running latest iOS, here is how to Jailbreak iPhone 4S and iOS 5 Redsn0w 0.9.9b5 Untethered:
-Install iTunes 10.5.
-Connect Your iDevice to your computer and back up your files.
-Download the correct version of iOS 5. You can find the direct links here. Or you can update through iTunes.
-Download Redsn0w 0.9.9b5 for Windows or for Mac.
-Open that file, select ‘Jailbreak’ then ‘Install Cydia’. It’ll take you to DFU mode and Redsn0w will jailbreak your device.
-Once Cydia is installed, you’ll want to be in DFU mode and in there should be an option for ‘Extras’. It looks like this image you see here.
-Pick ‘Just Boot’.
With today’s official iOS5 release, redsn0w has been updated to 0.9.9b5 to include the public URLs for the IPSW files. This way, first-time iOS5 jailbreakers don’t need to supply the IPSW file manually. It’s still a tethered jailbreak on all except the old-bootrom iPhone3GS, and it doesn’t apply to iPad2 or the upcoming iPhone4S.
Because the jailbreak is currently only tethered for most devices, we’re not going to release a new PwnageTool yet. Instead, we’ve decided to build some of PwnageTool’s functionality into redsn0w (since you need redsn0w to “Just boot tethered” on every power cycle anyway). The new “Custom IPSW” button on the Extras screen will create a custom IPSW without the baseband update for 4.3.3 or 5.0gm (iPhone3GS and iPhone4 only, for now). Remember not to accidentally restore to the stock IPSW after you create the custom one! The custom one begins with NO_BB_ (for “no baseband”).
You must enter “Pwned DFU” mode before trying to use the NO_BB_ IPSW with iTunes (and your hosts file cannot be pointing to Cydia’s servers due to the new blob nonce mechanism they’re using in iOS5).
Version 0.9.9b5 is available only for Mac for now, until we can do more testing on the Windows version of “Custom IPSW”.
We’re currently working on a normal compatibility update for existing ultrasn0w unlockers. After that we’ll try to fix the iBooks issue on jailbroken iOS5.
Make sure iTunes is updated t0 version 10.5 (iTunes > Check for Updates), check your device has iOS 5 installed, and then run Redsn0w. Click “Jailbreak” and follow the on-screen prompts. If you’re new to jailbreaking, hit up Redmond Pie’s step-by-step walkthrough. Redmond Pie also has a guide on how to downgrade from iOS 5 to the last stable version of iOS 4.3, which you may have to do once a tethered jailbreak emerges. Jailbreak iPhone 4S and iOS 5 Redsn0w 0.9.9b5 Untethered
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