How do I jailbreak iPhone iOS 4.0 / 4.1 with Greenpois0n?

How do I jailbreak iPhone iOS 4.0 / 4.1 with Greenpois0n?

Now almost all iOS devices running iPhone firmware 4.1 are jailbreakable with Greenpois0n. To jailbreak iOS devices running firmware 4.0 / 4.01 / 4.02 use Limera1n. To jailbreak your iPhone with Greenpois0n use the following instructions:

1. First you should save your SHSH files and download Greenpois0n to your computer.

2. Run the Greenpois0n application.

3. Power off your iPhone and connect it to the computer with the USB cable.

4. Click the button marked "Prepare to Jailbreak (DFU)" and follow the instructions to put your iPhone into DFU mode.

5. When the screen says "Ready to Jailbreak" click the "Jailbreak!" button on your computer screen.

6. Restart your iPhone and the Loader app icon will appear on your home screen.

7. Touch the Loader app and navigate to Cydia -> Install Cydia. When prompted "Do you want to remove Loader from your device?" touch "Remove."

8. Reboot your iPhone and you'll see Cydia on the home screen. Your iPhone is now jailbroken. Thanks to Chronic Dev Team for developing Greenpois0n!

Comments

do you have to remove loader? after installing cydia the prompt requesting to remove loader didnt pop up

Hi, I am serving in Iraq and I have asked somebody to buy an iphone4 for me from the States and bring it to me to Iraq. I thought that I could use it here after jailbreaking and unlocking using the free tools available on the net. However I found out that I can't do anything without an AT&T network (AT&T SIM card was in the phone). I can't run the phone, even after connecting it to my PC with iTunes installed. What should I do? How can I activate it to run it without AT&T network and/or paying anything to AT&T?

Hi, I am serving in Iraq and asked somebody to buy an iphone4 for me from the States and bring it to me to Iraq. I thought that I could use it here after jailbreaking and unlocking using the free tools available on the net. However I found out that I can't do anything without an AT&T network (AT&T SIM card was in the phone). I can't run the phone, even after connecting it to my PC with iTunes installed. What should I do? How can I activate it to run it without AT&T network and/or paying anything to AT&T?