iOS 5: iPhone Basebands and Unlocks
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After nearly eight weeks of hard work, pod2g unearthed a bug which led him to the creation of first untethered jailbreak on iOS 5. This is the official final release of an untethered jailbreak for all A4 devices running iOS 5.0.1. Way back on 22 December, Pod2g made the official announcement on his blog that he would pass on his latest findings to the Chronic development team, so that he could focus on the progressive development of an A5 jailbreak. Besides, he believed that the Chronic Dev Team were better positioned to integrate and package all his work into a distributable jailbreak.

It seems the legendary hacker's instincts turned out true, as we witnessed the release of untethered jailbreak within the next five days for A4 devices running iOS 5.0.1, being implemented by both the Chronic Dev and iPhone Dev Teams.

The iOS 5.0.1 untethered jailbreak contains the exact same set of files that pod2g provided to the Chronic Dev Team, and can be obtained as either a download via Cydia by searching for a package named 'Corona', for users who are already jailbroken tethered, or through a Redsn0w bundle for users who have running stock iOS and have been waiting for this untether.

According to RedmondPie, this release currently supports only iOS 5.0.1 with Chronic Dev Team member p0sixninja tweeting out that 5.0 will follow soon after a number of small bugs have been eradicated and more testing has been done. Pod2g has also released some advice to A4 and A5 users advising not to update their devices to iOS 5.0.2 or 5.1 when released as this would render their older jailbreaks useless.

Users should note that the jailbreak released is supported on all A4 based (and below) devices like iPhone 4, 3GS, iPod Touch 3G/4G and iPad1 and newer A5-based devices like iPad2 and iPhone 4S will unlock with Absinthe jailbreak posted here.

For Users On iOS 5.0.1 Tethered Jailbreak:

If you are currently operating an A4 device which has a tethered jailbreak using Redsn0w,Ac1dSn0w or Sn0wbreeze then you can simply launch Cydia from your Springboard and download a package named 'Corona' which will provide you with an untethered jailbreak.

For Users On Stock iOS 5.0.1:

If your device is running stock iOS 5.0.1 then you can use download the latest Redsn0w 0.9.10b1 for either Windows or Mac to give yourself an untethered jailbreak, instructions for which can be found below.

Step 1: Download the latest version of Redsn0w from the links given above.

Step 2: Start Redsn0w, hit "Jailbreak" then check "Install Cydia". Follow the onscreen steps to place your device into DFU mode.

Step 3: Wait for Redsn0w to apply the full untethered jailbreak!

Once done, your A4 device (iPhone, iPad or iPod touch) will be rebooted in fully untethered jailbreak mode!

For Users Who Rely On Unlock:

For those of you who rely on Ultrasn0w or Gevey SIM unlock must preserve the old baseband using "Custom IPSW" option found in Redsn0w.

Watch the video Tutorial for performing iOS 5.0.1 Untethered Jailbreak on A4 Devices from pod2g:

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