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07-18-2010, 06:43 | #1 (permalink) |
No Life Poster Join Date: Nov 2008 Location: Mardan
Posts: 1,350
Member: 897494 Status: Offline Sonork: 100.1581481 Thanks Meter: 1,102 | iPhone 4 Allows for Baseband Downgrade According to MuscleNerd you can't use TinyUmbrella-like backup of signed BB blobs because they're unique *per restore* (!!) the blobs are only good until the next time the baseband reboots. Then the nonce changes and blobs worthless MuscleNerd hopes that there's a flaw somewhere in the iPhone4 at+xnonce stuff which will allow the Dev-Team to circumvent Apple's security measures. Also the iPhone 4 Bootloader and Bootrom has yet to be explored for exploits that might allow baseband downgrades. Currently this feature is still a welcomed one for developers who were previously forced into a baseband upgrade when testing out beta firmware. Now they can restore back down and get back to the older baseband. |
The Following User Says Thank You to Gsm Mardan For This Useful Post: |
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