[How To] Jailbreak iOS 5 and iOS 5.0.1 With Ac1dsn0w

Ac1dsn0w is a new jailbreak tool released by the Pwn Dev Team to jailbreak iOS 5 and iOS 5.0.1.

Be warned that Ac1dsn0w is brand new and in Beta number 1. There will be bugs. You do this at your own risk. If you want a more reliable jailbreak, use Redsn0w or Sn0wbreeze.
TETHERED JAILBREAK

Ac1dsn0w is only available for Mac OS X right now. For legality issues, we will not be providing links. You can find it via Google.

This jailbreak tool only works with:

• iPhone 3Gs
• iPhone 4
• iPod Touch 4G
• iPad 1

To jailbreak an iOS 5 or iOS 5.0.1 iDevice using Ac1dsn0w, you will need the Ac1dsn0w application. Right now, it's only available for Mac OS X Lion and Snow Leopard. You can download it here. It is about a 35MB download and will take a bit to download depending on your internet connection type and speed.

After you have downloaded it, unzip the .zip file and drag the application to your applications folder. Once you do that, open it up. The window will look like the first picture of this guide; up above. This is the main window of Ac1dsn0w. You have the option to jailbreak, boot tethered, enter pwned DFU mode, or exit recovery. Additionally, if you're an expert, you might want to show the console; it shows device information and the current state of the jailbreaking process. If you're a newbie, you might want to show the assistant; it shows how to get into DFU mode. The assistant and the console can be seen below:

Once you put your device into DFU mode, you can use the assistant on Ac1dsn0w but clicking, "show assistant" if you don't know how, you can click the jailbreak button on Ac1dsn0w. Ac1dsn0w will then go through the process that it needs to:

When it finishes the jailbreak process, you can click on the Tethered Boot option to boot tethered after jailbreaking. You will need to put your Device into DFU mode to do this just like any other tethered jailbreak; follow the assistant again before you click it:

Once you are up and running, enjoy your tethered jailbreak on iOS 5 and iOS 5.0.1! You can install the Semi-tether to have the freedom to boot up your iDevice with stock iOS features. The Semi-tether will not grant you any jailbreak features until you boot tethered again.




Update x1: MuscleNerd of iPhone Dev-Team has confirmed that Ac1dSn0w in it’s current state contains code that has been illegally distributed. We have removed all the download links of Ac1dSn0w until the team behind the tool fixes this issue. We highly recommend using iPhone Dev Team’s Redsn0w, which can semi-tether jailbreak iOS 5.x on iPhone 4, 3GS, iPad 1, iPod touch.