【转】Jailbreak iPhone 4 iOS 4.0.1 / 4 with JailbreakMe 2.0

JailbreakMe 2.0 is the new iPhone 4 jailbreak for iOS 4.0.1, 4.0 firmware. In this guide you’ll learn how to jailbreak iPhone 4 iOS 4.0.1 / 4 with JailbreakMe 2.0 jailbreak. Comex is the guy behind JailbreakMe 2.0 jailbreak for all iPhones, iPod Touches iOS 4.0.1 / 4.0 / 3.1.3 / 3.1.2 and iPad running iOS 3.2.1 / 3.2.

NOTE

• JailbreakMe 2.0 can jailbreak iPhone 4 on iOS 4.0.1 and 4.0.
• Your iPhone 4 MUST be activated. (How to: activate iPhone 4 without Origional SIM)

Warning: Some of the users are facing FaceTime/MMS issues. The developer is working on it. (hearing a few reports of people rebooting a few times and it fixing facetime issues, perhaps this is something that will resolve itself) FaceTime and MMS issue has been addressed For those who have already jailbroken iPhone 4 before the fix, follow the Fix linked Below.

JailbreakMe 2.0 is a userland (Web-based) jailbreak for all iDevices running firmware 3.1.2 up to 4.0.1. Lets jailbreak iPhone 4 4.0.1 / 4 firmware with JailbreakMe.

Disclaimer: This guide for educational purposes only. So, try it at your own risk. We can NOT be held responsible if anything goes wrong.

How to Jailbreak iPhone 4 iOS 4.0.1 / 4 with JailbreakMe

Step 1

• Download and install the latest iTunes 9.2.1.
• Backup all your personal stuff
• Restore the official firmware (Download iOS 4.0.1 | Download iOS 4.0)

Step 2

• Make sure your iPhone is connected to the internet.
• Open the Safari Browser from your iPhone 4 Springboard.
• Input one of the following URLs:
  • http://jailbreakme.com
  • http://jailbreakme.modmyi.com/

Step 3

Now Slide to Jailbreak iPhone 4 on iOS 4.0.1 or 4.0 firmware.

• First it will download the jailbreak data
• then the jailbreak process will begin

Once the process is complete, the following popup message will appear:

Hit the OK button and close Safari.

Voila! You’ve successfully jailbreak iPhone 4 with JailbreakMe userland jailbreak by Comex. Don’t forget to share your experience in the comments section below.

How To Unlock IPhone

UltraSn0w 1.0-1, the iPhone 4 unlock will be out soon after the testing on a few jailbroken iPhone 4 is complete is out now. iPhone 4, iPhone 3GS and 3G users can always use UltraSn0w:

How to: Unlock iPhone 4 with UltraSn0w 1.0-1

How to: unlock iPhone 3GS, 3G with UltraSn0w

Issues / Fixes

FaceTime / MMS Issue: How to Fix

Stuck at the purple screen:

• Go to: Settings > Safari and clear Browser History, Cookies and Cache.
• Then Reboot your iDevice.

Hanging on slide to unlock:

• Put it in airplane mode then turn it off.

Misc.

• Reset Network Settings: Settings > General > Reset > Reset Network Settings

Also checkout:

• How to: Jailbreak iPhone 3GS, 3G with JailbreakMe
• How to: Jailbreak iPod Touch 3G, 2G with JailbreakMe
• How to: Jailbreak iPad iOS 3.2.1 with JailbreakMe