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Apple Mobile Products: iPhone, iPad, iPod
iPod Hardware and Accessories
Jailbreaking 4.2.1 Questions
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<blockquote data-quote="Jaygray" data-source="post: 1152090" data-attributes="member: 50033"><p>Yes. When you save your blobs, you are saving whatever firmware Apple is currently offering. You'll be able to save 4.2.1 until a new firmware is released, then the window closes and you'll be able to save the blobs for the new firmware.</p><p></p><p>To clarify, Cydia, TinyUmbrella, iSHSHit, etc do not create the blobs. They request the current firmware blobs for your device from Apple. Apple sends a response back and they save the response. Then when you need to use them to restore/downgrade, they intercept the request iTunes sends to Apple and reply back to iTunes using the old saved blobs. They fool iTunes into thinking it received the response from Apple, and iTunes then thinks whatever firmware blobs they sent are the current version. (don't jump on me if my over-simplified explanation is a little off)</p></blockquote><p></p>
[QUOTE="Jaygray, post: 1152090, member: 50033"] Yes. When you save your blobs, you are saving whatever firmware Apple is currently offering. You'll be able to save 4.2.1 until a new firmware is released, then the window closes and you'll be able to save the blobs for the new firmware. To clarify, Cydia, TinyUmbrella, iSHSHit, etc do not create the blobs. They request the current firmware blobs for your device from Apple. Apple sends a response back and they save the response. Then when you need to use them to restore/downgrade, they intercept the request iTunes sends to Apple and reply back to iTunes using the old saved blobs. They fool iTunes into thinking it received the response from Apple, and iTunes then thinks whatever firmware blobs they sent are the current version. (don't jump on me if my over-simplified explanation is a little off) [/QUOTE]
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Apple Mobile Products: iPhone, iPad, iPod
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Jailbreaking 4.2.1 Questions
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