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Hacker Jailbreaks iPhone 3GS Running iPhone OS 4.0 Beta 4

May 27th, 2010 05:01 admin Leave a comment Go to comments

Jailbreak tool for beta 4 iPhone OS 4 for iPhone 3GS

The iPhone Dev team had released Redsn0w 0.9.5 to jailbreak iPhone OS 4.0 Beta 4, which worked for only iPhone 3G.

Amsterdam based iPhone hacker, Kaatje claims that she has managed to successfully jailbreak iPhone 3GS running iPhone OS 4.0 Beta 4

Kaatje explains that the process involved creating a custom ipsw file for iPhone OS 4.0 and restoring it on her iPhone 3GS using Pwnagetool:

“I accomplished this by patching asr, lockdownd, LLB, iBEC, IBSS, iBoot, kernelcache, MobileSafari, Services.plist, and fstab. The binaries were patched with IDA Pro and OxED and were then diffed against the original pwned files with bsdiff to create patch files. I then took the diff files and built a firmware bundle that I dropped into Pwnagetool and updated the cydia tree within Pwnagetool as well. Once this was done, I created a custom ipsw with Pwnagetool, unzipped it, applied a pwned LLB from a pwnagetool generated 3.1.3 ipsw, zipped it back up and restored to my device.”

She also reports that:

"This is a work in progress but I thought I would share the results so far. Cydia still has some issues, many applications install but crash, some examples include mobileterminal, sbsettings, five icon dock."

The important thing to note here is that she managed to retain the baseband 05.11.07 on iPhone 3GS and doesn't update it to the new baseband included in the latest beta version of iPhone OS 4.0, which means that the jailbroken iPhone 3GS can be software unlocked

It will be interesting to see if the iPhone hacking community can stay ahead of the cat and mouse game when Apple releases the final version of iPhone OS 4.0. 

[TGIL.NL via BlogsDNA]

Source: Hacker Jailbreaks iPhone 3GS Running iPhone OS 4.0 Beta 4

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