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Preventing Baseband Update

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Revision as of 07:46, 7 December 2010 by Whiteshinyapple (talk | contribs)
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  1. Unpack Original/Custom IPSW
  2. Decrypt Restore Ramdisk using xpwntool and mount it
  3. Navigate to /usr/local/share/restore
  4. Edit options.plist on the restore ramdisk

(Ignore the SystemPartitionSize in your plist file and leave it) 

<?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>UpdateBaseband</key>
        <false/>
</dict>
</plist>
  1. Reencrypt the restore ramdisk
  2. Repack the IPSW
  3. Prepare device for custom firmware using redsn0w Just enter pwned DFU option
  4. Restore IPSW to iTunes in pwned DFU Mode

This method works on iOS 4.2.1

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