It keeps coming up with the error 3194 when I try to update or restore. I tried to modify the "hosts" file by writing a new line at the end of the file but when I put it into DFU mode it doesn't come up with the plug display on my iphone. It is just the apple symbol stuck. Currently, my iphone software version is 4.3.5. Can someone help me? Please!!!!!! I desperately want to restore my phone.