Dev-Team Blog
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Getting out of jail is free! 

Get out of jail free

Fantastic news today from the Electronic Frontier Foundation (EFF).  After a lot of hard work and mountains of paperwork, jailbreaking your iPhone is now explicitly a permitted fair use under the DMCA!

The first of EFF’s three successful requests clarifies the legality of cell phone “jailbreaking” — software modifications that liberate iPhones and other handsets to run applications from sources other than those approved by the phone maker. More than a million iPhone owners are said to have “jailbroken” their handsets in order to change wireless providers or use applications obtained from sources other than Apple’s own iTunes “App Store,” and many more have expressed a desire to do so. But the threat of DMCA liability had previously endangered these customers and alternate applications stores.

In its reasoning in favor of EFF’s jailbreaking exemption, the Copyright Office rejected Apple’s claim that copyright law prevents people from installing unapproved programs on iPhones: “When one jailbreaks a smartphone in order to make the operating system on that phone interoperable with an independently created application that has not been approved by the maker of the smartphone or the maker of its operating system, the modifications that are made purely for the purpose of such interoperability are fair uses.”

The EFF also successfully renewed the existing DMCA exception for carrier unlocking.  More on the ruling by the Library of Congress is here and here (and many other places, since this is huge news!). The full ruling is here, and EFF’s history with this case is here (EFF’s servers are understandably getting hammered today!).

This doesn’t mean that Apple will stop their technical attempts to thwart jailbreaking, but it does mean that our iPhone jailbreaks and unlocks are now unambiguously legal under the DMCA.

Great job, EFF!

Blob banter 


Those of you with jailbroken iPhone3G and ipt2G devices may now have noticed Cydia starting to save your SHSH blobs too, just like it does for iPhone3GS, ipt3G and later devices. That’s because starting with 4.0, Apple started putting a “soft” SHSH blob check in the firmware. The SHSH blob check is very real in the sense that if iTunes can’t get your blobs (because the Apple signing window has closed), the iTunes restore will error out. But it’s “soft” in the sense that those devices can always use redsn0w or PwnageTool to get past the error (the bootroms themselves for those devices don’t require blobs to be in the firmware files, unlike the newer bootroms).

Furthermore, since the 3.x IPSWs for these devices don’t enforce it, you can always restore to 3.x IPSWs outside of any signing windows.

So, Cydia is doing this to allow you to continue to use iTunes to restore to 4.x on iPhone3G and ipt2g outside of Apple’s signing window without needing to use redsn0w or PwnageTool to get around Apple’s annoying new restriction.