[Guide] How to Jailbreak iOS 5.0.1 (Untethered) using Redsn0w

The long wait is finally over, as the first untethered jailbreak for iOS 5.0.1 has been officially released. The jailbreak works on the iPhone 4, iPad, iPhone 3GS and iPod Touch 3G/4G. So if you own one of the above mentioned devices keep reading for the step-by-step guide on how to jailbreak your device.

The jailbreak comes courtesy of pod2g who has passed on his work to the Chronic Development Team to focus on a jailbreak for A5 based devices like the iPad 2 and iPhone 4S.

The jailbreak has now been prepared, packaged and made available through the Chronic Dev Team and the iPhone Dev Team.

Users who already have the tethered jailbreak can simply search for the 'Corona' app on Cydia and users who are still on the stock ROM can use Redsn0w to jailbreak your device.

NOTE - While iOS 5.0.1 is supported but iOS 5.0 isn't at the moment. The jailbreak for iOS 5 will be released after testing and bug eradication has been carried out. Users are advised not to update their devices to iOS 5.0.2 or 5.1 if they want to keep this jailbreak in tact.

NOTE - The iPhone 4S and iPad 2 are currently not supported by this Jailbreak.

NOTE - The iPhone 4, iPad, iPhone 3GS and iPod Touch 3G/4G are currently supported, and if you own one of the mentioned devices the guide follows.

Users with iOS 5.0.1 Tethered Jailbreak
If you own one of the supported devices and have an iOS 5.0.1 tethered jailbreak using  Redsn0w or Sn0wbreeze, you can simply launch Cydia and search for and Download 'Corona' which will provide you with the untethered jailbreak.

Users will the stock iOS 5.0.1 from Apple
If you have updated to stock iOS 5.0.1 using iTunes you can jailbreak your device by downloading the latest version of Redsn0w 0.9.10b1 for Windows or Mac.

NOTE - Check your iPhone 3GS serial number, on iPhone – Settings > General > About
Look for the Serial Number – if the 4th & 5th digits are below 40 you are lucky and have the old boot-rom. You will need to know this for later

1. Download Redsn0w 0.9.10b1 [ WINDOWS | MAC OS ]
2. Open Redsn0w and select 'Jailbreak'
• Select 'Install Cydia'
• Follow the onscreen instructions to enter DFU mode on your device
3.  Once Redsn0w is done your device will be in full untethered jailbreak mode.

Users who rely on Unlock

If you use Ultrasn0w or Gevey SIM to unlock your device, please preserve your baseband and create a custom IPSW in Redsn0w. If you have installed the stock iOS 5.0.1, you are stuck. 

• Launch Redsnow and click on 'Extras'

ios501-select-stock-firmware

• Select IPSW and browse to your downloaded stock iOS – in this case it is - iPhone2,1_5.0.1_9A405_Restore.ipsw

ios501-select-stock-IPSW

• For the iPhone 3GS redsnow needs to know if it is an old or new bootrom – see other notes on the post if you are not sure on what bootrom version.

Which BootRom is This?

• IPSW verification made from redsn0w

Confirm IPSW

• Now time to Jailbreak

jaibreak-iphone-install-cydia

• Click on Install Cydia

install-cydia

• You then have to enter the PwnedDFU mode again, so follow the onscreen instructions
• After it enters DFU

jailbreak-complete

You should see a harddrive icon followed by a bunch of scrolling code and then running pineapples – and its all happy days.

After rebooting, launch Cydia on the iPhone, the app will ask you what type of user you are and then download the latest packages and upgrade when prompted, then tap the Cydia Search icon (bottom right) and tap in ultrasn0w, Cydia finds the package and then install ultrasn0w 1.2.5 and reboot the iPhone this will complete the jailbreak and unlock the device.