iphone 4 stuck on connect itunes screen error 1013 3004

Iphone 4 Stuck on connect itunes screen (Error 1013 and 3004)
location: macrumors.com - date: January 9, 2011
i have serious problem that i can’t use my iphone anymore. 1.I had unlocked jailbreaked iphone(ios 4.02) just a few days ago. 2. I tried my iPhone upgrade to 4.2.1 and retain original baseband(ios 4.02) and unlocked with Tiny Umbrella. But i couldn’t succeed it. 3.I tried to restore 4.02, then 4.1, later 4.2.1 dozens and dozens of time but i couldn’t succeed it.Every time i tried i was getting error 1013. 4.I tried restore by another computer but nothing changed. 5.c:\windows\system32\drivers\etc\hosts I’ve changed host file with notepad; Remove the line that has gs.apple.com completely and save the file.But this time error changed to 3004 6.I used to recboot, tiny umbrella and redsn0w_win_0.9.6b6 to kick out of recovery mod but nothing changed. I’m just see ‘’connect itunes’’ screen with my iphone. i can’t see the emergency call either.What should I do ? Please
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