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Difference between revisions of "Preventing Baseband Update"
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'''This method works on iOS 4.2.1''' |
'''This method works on iOS 4.2.1''' |
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| + | This won't work with original IPSW. Pwned DFU mode doesn't patch sigchecks in [[iBSS]], so the [[Restore/Update Ramdisks|ramdisk]] won't load. You need to load patched [[iBSS]]/[[iBEC]] for this to work. |
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[[Category:Baseband]] |
[[Category:Baseband]] |
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Revision as of 23:19, 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
(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>
- Reencrypt the restore ramdisk
- Repack the IPSW
- Prepare device for custom firmware using redsn0w Just enter pwned DFU option
- Restore IPSW to iTunes in pwned DFU Mode
This method works on iOS 4.2.1
This won't work with original IPSW. Pwned DFU mode doesn't patch sigchecks in iBSS, so the ramdisk won't load. You need to load patched iBSS/iBEC for this to work.
