Tutorial:Creating a NOR-only IPSW

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Revision as of 20:59, 24 June 2011 by Http (talk | contribs) (the 3G doesn't have different bootroms, so this is not plural, but the 3GS instead)
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1. Create a custom ipsw

2. Unpack it, remove rootfs dmg

3. Decrypt ramdisk (xpwntool), mount it.

4. Edit options.plist on the restore ramdisk:

/usr/local/share/restore/options.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
   <key>CreateFilesystemPartitions</key>
   <false/>
   <key>UpdateBaseband</key>
   <false/>
   <key>SystemImage</key>
   <false/>
</dict>
</plist>

5. Unmount and reencrypt the restore ramdisk.

6. Repack the ipsw.

NOTE: It just works with iPod Touch 2G MB and iPhone 3GS old bootrom