jail breaking your Iphone

How to jailbreak iPhone 4G(ios4) using Limera1n:

First you should look for your firmware(os) if it is ios4 than ok if you are running iphone 3G(firmware 3.13)or other than you should first install the latest firmware that is 4 or 4.01
here the link of firmware of ios(iphone 4)

Whats it Support?
iPhone 4G!
iPhone 3GS on iOS 4.0
iPod Touch 3g on iOS 4.0
iPod Touch 2g on iOS 4.0
LIMERA1N 4 BETA 2

Download Link:

http://fileme.us/2Fi583