IPHONE 3G hang on apple logo done via restoring jailbreak & unlock

put phone in DFU mode open itunes press
shift on keyboard select 4.1 firmware then click ok.wait for the
restore process to finish then do jailbreak via redsnow after jailbreak
do unlock via wifi method.then your phone is done

iphone was erase all settings by the owner now it hangs on apple logo.here is the picture of the phone
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now restoring iphone after putting it to dfu mode
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now after restoring phone goes like this
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now jailbreaking iphone with redsnow
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now proceed with unlocking via wifi