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Try make some sense first.

And some information would help too, what you're trying to Jailbreak, what program, what operating system. You know, the general stuff.
 
ok, i have a 1gen iphone and want to restore the phone with the 3.0 .ipsw before i run redsnow.
 
but every time i download it to puts an .ipsw.zip on the end , do i just rename it?
 
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