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Ios 4.0.2 downgrade question


New Member
Aug 15, 2010
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Hi there, I upgraded to 4.0.2, but did not want to (had to restore).
How can I downgrade using shsh saved to cydia? I do not yet have tiny umbrella. I am also using a pc.
Any help would be appreciated!
Thank you!
You should be able to still downgrade iphone 4 to 4.0.1 no problemo! Apple is still signing 4.0.1

just go here:

iPod, iPhone and iPad Firmware Download

and download the appropriate firmware for your iphone

then in iTunes you hold Shift (Windows) or Options (Mac) then left-click the Restore button. Browse to the firmware you downloaded and thats it

No SHSH or Xcode needed...
I have to downgrade to 4.0.1 too but when I download the 4.0.1 it downloads in zip format. Then when I open the zip file there are like 20 or more files and have no idea what to do. I already connected the phone to itunes and the itunes part I got. I just am lost when it comes to finding the firmware.

You have to rename the .zip part of the file to .IPSW. then iTunes should recognize it. Im not sure if apple is still signing 4.0.1, good luck
Is there anyway to getting around the apple signing part?