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Difference between revisions of "Tutorial:Creating a NOR-only IPSW"

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m (now uses # and better wording on the NOTE)
(this doesn't matter, the mediawiki software will encode it to valid html (look at the source) (also, the dtd link was doing "....dtd&quot" in the link)
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# Decrypt the ramdisk ([[xpwntool]]) and mount it.
  
# Decrypt the ramdisk ([[xpwntool]]) and mount it.
 
# Edit options.plist (/usr/local/share/restore/options.plist) on the restore ramdisk:
  
# Edit options.plist (/usr/local/share/restore/options.plist) on the restore ramdisk:
−
<?xml version="1.0" encoding="UTF-8"?>
 +
<?xml version="1.0" encoding="UTF-8"?>
−
&lt;!DOCTYPE plist PUBLIC &quot;-//Apple//DTD PLIST 1.0//EN&quot; &quot;http://www.apple.com/DTDs/PropertyList-1.0.dtd&quot;&gt;
 +
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
−
&lt;plist version=&quot;1.0&quot;&gt;
 +
<plist version="1.0">
−
&lt;dict&gt;
 +
<dict>
−
&lt;key&gt;CreateFilesystemPartitions&lt;/key&gt;
 +
<key>CreateFilesystemPartitions</key>
−
&lt;false/&gt;
 +
<false/>
−
&lt;key&gt;UpdateBaseband&lt;/key&gt;
 +
<key>UpdateBaseband</key>
−
&lt;false/&gt;
 +
<false/>
−
&lt;key&gt;SystemImage&lt;/key&gt;
 +
<key>SystemImage</key>
−
&lt;false/&gt;
 +
<false/>
−
&lt;/dict&gt;
 +
</dict>
−
&lt;/plist&gt;
 +
</plist>
 
# Unmount and reencrypt the restore ramdisk.
  
# Unmount and reencrypt the restore ramdisk.
 
# Repack the [[IPSW]].
  
# Repack the [[IPSW]].

Revision as of 00:54, 26 June 2011

This will flash your device to NOR-only

  1. Create a custom ipsw
  2. Unpack it, remove rootfs dmg
  3. Decrypt the ramdisk (xpwntool) and mount it.
  4. Edit options.plist (/usr/local/share/restore/options.plist) on the restore ramdisk:
<?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>
  1. Unmount and reencrypt the restore ramdisk.
  2. Repack the IPSW.

NOTE: This technique only works on devices vulnerable to the 2kPwn bootrom exploit.

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