The iPhone Dev Team recently released redsn0w 0.9.10 to provide untethered jailbreak for iOS 5.0.1. This untethered jailbreak is only for non A5 devices. The following iDevices are currently supported by iOS 5.0.1 untethered jailbreak:
  • iPhone 3GS
  • iPhone 4 (GSM/CDMA)
  • iPod Touch 3G/4G
  • iPad 1
The untethered jailbreak is available only for iOS 5.0.1 & not iOS 5.0. So make sure you download iOS 5.0.1 IPSW before proceeding with the jailbreak.

How To Jailbreak iOS 5.0.1 Untethered using Redsn0w 0.9.10?

This tutorial is for jailbreaking iOS 5.0.1. This is not for building a custom IPSW for unlockers. If you rely on unlock, don’t follow this tutorial. To build a custom iOS 5.0.1 IPSW, follow this tutorial (to be updated).
1. Make sure your iDevice is updated to iOS 5.0.1
2. Download appropriate redsn0w version:
3. Launch redsn0w & click Jailbreak

4. Now make sure your iDevice is switched off. Then click Next

5. Here you’ll see instructions to put your iDevice in Pwned DFU mode. Follow the instructions on the screen

6. Redsn0w will now perform the jailbreak

7. Choose “Install Cydia” and proceed with the jailbreak

After the jailbreak process completes, Cydia will be installed on your home screen.