Hello , I have an Iphone 3gs with the iPad Baseband (16.5.00) with 4.1 (ipsw) I would love to update it to 4.3.3 , but when Im updating it with iTunes it said that "this device is not supported" I try with stock ipsw and Custom Ipsw from pwnage ... I try it in Windows and Mac !! in different computers , different Sytems(Snow leopard, lion) and it give me the same error !!! Thanks in advance !!!