Exploring iPhone OS 2 files
Update: This technique also works with iPhone OS 3.x. You will find the VFDecrypt keys on The iPhone Wiki Firmware page. Just select the appropriate iPhone model and Version/Build of your firmware.
It turns out to be pretty simple:
- Download iPhone OS 2.0.2 (5C1)
curl -O http://appldnld.apple.com.edgesuite.net/content.info.apple.com/iPhone/061-5241.20080818.t5Fv3/iPhone1,2_2.0.2_5C1_Restore.ipsw - Unzip the ipsw which is actually a zip file
unzip iPhone1,2_2.0.2_5C1_Restore.ipsw - Download vfdecrypt
svn co http://iphone-elite.googlecode.com/svn/trunk iphone-elite - Compile vfdecrypt
make -C iphone-elite/vfdecrypt_win32 - Decrypt the dmg (key from The iPhone Wiki)
./iphone-elite/vfdecrypt_win32/vfdecrypt -i 018-3978-1.dmg -k 31e3ff09ff046d5237187346ee893015354d2135e3f0f39480be63dd2a18444961c2da5d -o iPhoneOS-2.0.2.dmg - Mount iPhone OS dmg and start exploring
open iPhoneOS-2.0.2.dmg
4 comments:
If you already have an iPhone, then you already have the .ipsw files on your computer in ~/Library/iTunes/iPhone Software Updates/
Nice tip, thanks!
Stéphane
One more thing...
This does not work for PPC users, except if you patch iphone-elite/vfdecrypt_win32/util.c: at lines 73 and 74, write:
#define swap32(x)
#define swap64(x)
There is no need to do byte-ending conversion for PPC :-)
Note that .png files are ill-formatted and cannot be decoded; use the following script to convert them to real PNG (though some files resist and can't be reformatted):
http://www.axelbrz.com.ar/?mod=iphone-png-images-normalizer
(copy .png files to a new writable folder, and execute script in this folder using "python ipin.py")
Stéphane
Sorry but the modification you suggested for PPC macs dosn't seem to work I modified lines 73 and 74 of util.c like so
#define swap32(x)
#define swap64(x)
and recompiled.
and re did vfdecrypt_32 as you indicated and the resulting dmg's don't mount.
how do u apply this for exploring other firmwares like 3.0
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