upgrade or downgrade ?
maybe someone could help me.I got my iphone on ebay 2 month ago unlucked (i geuss 1.0.2 ),it's working fine here in Europe with T-mobile . I know there is a launcher ,unluck, installer ,icons on the screen ..but not sure what to do .. do i need to upgrade and if so can i use the installer to do that on wifi network ?or do i need to download all that stuff to my pc ? thanks 4 taking the time to read this ..
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