I need jailbreak iphone 3gs 4.0 for windows?

Hey! I will love to help you. Recently I have jailbreak my iPhone without the official SIM. You have to simply follow the following steps in the process of jailbreaking the iPhone. First of all you have to purchase a phone book SIM that you can easily found in any SIM card shop near your house. After that you have to insert that into your iphone. Now turn off and turn on your iphone and now you will be able to access your iphone. But please note that phone book SIM works only for 3GS and iphone 3G but for the iphone 4 you have to covert the phone book SIM into micro SIM after that you will have to insert that into your iphone4 SIM jack. After that turn off your iPhone for some time turn on your iphone again. Now you are ready to use tools like spirit or Red snow to jailbreak from iphone. This was the simple method to unlock your iphone in this whole process you may need to on and off your iphone for several times.