Jailbreak iPhone 4 A4 5.0.1 with redsn0w 0.9.10b1

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 to for either Windows or Mac to give yourself an untethered jailbreak, instructions for which can be found below.

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.















Source:
http://www.redmondpie.com/jailbreak-5.0.1-untethered-on-iphone-ipad-ipod-touch-a4-devices-now-using-redsn0w-0.9.10b1-corona/