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Difference between revisions of "Preventing Baseband Update"
(there is a 3 method that does work) |
(looks like at least it '''should''' work) |
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| − | {{delete|I tried this without success, see [[Talk:Preventing Baseband Update|talk page]]. This page here should either be enhanced with other methods, or someone should confirm that it works and that I made a mistake. Nobody has confirmed this as working yet.}} |
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# Unpack Original/Custom IPSW |
# Unpack Original/Custom IPSW |
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# Decrypt Restore Ramdisk using [[xpwntool]] and mount it |
# Decrypt Restore Ramdisk using [[xpwntool]] and mount it |
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Revision as of 06:31, 7 December 2010
- Unpack Original/Custom IPSW
- Decrypt Restore Ramdisk using xpwntool and mount it
- Navigate to /usr/local/share/restore
- Edit 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> <true/> <key>SystemPartitionSize</key> <integer>1024</integer> <key>UpdateBaseband</key> <false/> <key>SystemImage</key> <true/> </dict> </plist>
- Reencrypt the restore ramdisk
- Repack the IPSW
- Restore IPSW to iTunes after preparing device for custom firmware.
This method works on iOS 4.2.1
PwnageTool bundle patch
- go to my github repo full nor flash firmware bundles
- if you dont trust me run bsdiff <options.plist from the restore ramdisk> <options.plist from above> /options.patch note: the SystemPartitionSize field must not be changed or your device will fail with error 46
- download the one for your device and put it inside PwnageTool or the sn0wbreeze source code's
- run PwnageTool or sn0wbreeze and make the custom ipsw
- restore your device in dfu mode
swap ramdisk's
as confirmed by a resent tweet [1] the restore ramdisk has had an extra check implemented
- Unpack Original IPSW
- Decrypt update Ramdisk using xpwntool and mount it
- Navigate to /usr/local/share/restore
- Edit options.plist on the update 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>UpdateBaseband</key> <false/> </dict> </plist>
- Reencrypt the update ramdisk
- Repack the IPSW
- Restore IPSW to iTunes after preparing device for custom firmware.
This method works on iOS 4.2.1
