JailbreakMe (star) is the jailbreaking tool for iPhone 4, iPhone 3GS, 3G on iOS 4 / 4.0.1, iPod Touch on iOS 4, and iPad on iOS 3.2.1. It is developed and released by iPhone Dev team. JailbreakMe is a browser based jailbreakin g tool making jailbreaking idevice very easy.

JailbreakMe does not work with iOS 4.1 but it can run with both old Bootrom as well as Bootrom. Now, you don’t need any PC/Mac for jailbreaking your device. You just need a internet connection and Mobile Safari browser. You will need an original supported SIM card to activate your phone with iTunes as jailbreak tool does not hacktivate your device.
Following is the complete guide to jailbreak your iPhone 4, 3GS, 3G on iOS 3.2.1 using JailbreakMe 2.0.
Guide for how to Jailbreak iPhone, iPod Touch and iPad using JailbreakMe 2.0
The program sometimes has a problem, so it is always advisable to sync your idevice with iTunes.
Step 1: Using iTunes take back up of all your files like Contacts, Calendars, Photos, Videos and Apps.
Step 2: Make sure that iTunes 9.2.1 is installed on your idevice.
Step 3: Now, go to www.jailbreakme.com using Safari browser from your device and wait until the complete page loads.

Step 4: You will see “Slide to jailbreak” option on the screen. Start this process as this will start downloading the data necessary for execution on your iPhone.
Step 5: After downloading the files, the jailbreak process will start automatically.
Step 6: Wait for few seconds until the jailbreak is in progress and you will see “Jailbreaking Sit Tight” appearing on the screen. Once the process is complete you will see a popup showing “Cydia has been added to the home screen” message.

Step 7: Cydia icon on springboard was added. Close the browser and check the spring board for the Cydia icon.
Step 8: That’s all. You have successfully completed the jailbreak process for your idevice.
The ultrasn0w Unlock for iPhone 4 on iOS 4.0.1 is going to be released in next 24 hours. So, Stay tuned for the ultrasn0w unlock for iPhone 4.
You might also like to check out:
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- iOS 4.1 Beta 2 Released for iPhone 4, iPhone 3G, 3GS and iPod Touch 2G
- Sn0wbreeze V1.8 Jailbreak for iOS 4.1 for Windows
- Guide to Jailbreak for iOS 4.1 iPhone 3G/iPod Touch 2G with Redsn0w 0.9.5
- iPhone 4 unlock with Ultrasn0w on iOS 4.0.1/4.1
- iOS 4.1 Release and Download
- iOS 4.1 Features list
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