I had trouble with my home button so I decided to use this method to enter in DFU mode. lternate Method: Going Into DFU Mode Without Button Pushing: (on windows) Easier than timing the buttons just right! 1.) First download the required archive http://www.sendspace.com/file/93fx93 2.) Extract the archive to the root of your hard drive, should be C:/DFU/ 3.) Connect your iPhone and ignore iTunes 4.) Goto Start - run 5.) Next type in c:/dfu/dfu iBSS.m68ap.RELEASE.dfu 6.) Wait for iPhone to show a white screen 7.) Now you may proceed to downgrade! After I enter into DFU mode and then do the restore from itunes I get the error "1604". What should I do?