Earlier today we told you that RedSn0w 0.9.9b4 could Jailbreak the official iOS 5 firmware. There was one slight issue, however, you needed to manually select the official iOS 5 firmware. While this is not a huge issue, in fact this is how RedSn0w used to function, the Dev-Team have just updated RedSn0w so that you no longer need to even select iOS 5. All you need to do is click the Jailbreak button and you are good to go!
This new version of RedSn0w has been dubbed RedSn0w 0.9.9b5 by the Dev-Team and is the most reliable way to Jailbreak iOS 5 tethered. RedSn0w 0.9.9b5 is only available to download for Mac OS X as the Windows version will be coming soon after more testing.
Straight from the Dev-Team’s website:
Update #13: 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 only available 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.
Besides the ability to automatically Jailbreak iOS 5 this version of RedSn0w allows unlockers to update to iOS 5 by creating a custom IPSW (see extras menu). If you would like to download RedSn0w 0.9.9b5 for Mac OS X you can go to the iJailbreak Downloads Section. Additionally you can use of the download links below:
Download RedSn0w 0.9.9b5 for Mac OS X
Let us know if you have any questions in the comments section below…