I am using my iphone 3GS from one year and want to updates from 3.1.2 to 4.0.1. I have heard about jailbroking method for updating or you can say for accessing the command line for the updating. I want to know that is it really possible? I want to know the procedure of jail broking and want to suggestion is this safe for my iphone or not. Are there any additional requirements of hardware or software for performing this task? If anybody having this idea then please tell me I want to update this immediately.
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