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111 posts

Master Geek


Topic # 79001 11-Mar-2011 10:42
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I have been talking with @MuscleNerd & @Veeence on Twitter, for those of you who don't know? @MuscleNerd is currently the most popular iPhone hacker part of the Dev-Team and @Veeence is a very close informant of the Dev-Team. I've tried scrounging around hinting on when they will release Ultrasn0w 1.3 to unlock our iPhone 4's.

But he could not give me a specific date, as it seems they have hit a dead end and for a while and thought they are not going to be able to unlock the iPhone 4.

However, a couple of hours ago, @MuscleNerd discovered a NCK exploit that if bruteforced just might be able to permanently unlock your iPhone.

I personally have received permission to quote @Veeence from his pastebin explaining to everyone what's going on.





Since there is a lot of confusion out there, and since I’m repeating myself all the time (which I do not really like), I made this little write up of questions that are continuously being asked (my personal FAQ). Please not that this is a global explanation. Don’t try to argue with me on specific details.>

1. What happend?! I thought the unlock for basebands 02.10.01 & 03.10.01 would be released within the next 2 weeks? As you know the Dev-Team (MuscleNerd) have been working on the unlock for quite a while now. They were making great progress on the unlock, but they found out that they (accidentally) unlocked “one particular SIM card” instead of the baseband itself. Which means that the unlock would only be an unlock you could use with MuscleNerd’s T-Mobile SIM. So, useless. If the unlock would unlock the baseband instead of “the SIM”, it’d probably be out within 2 weeks (reasonable timeframe which they had hoped). But things turned out to be different. Basically these <2 weeks predictions were a lack of information.

2. What is this NCK-key cracking? How does it work? The NCK-key is the key generated by Apple if you’d officially unlock you iPhone, and with officially I mean, via your carrier. This “NCK-unlock” method is known over a few years now, actually since geohot started working on unlocking the iPhone 2G. He developed a program that could “crack” this 15 digits long key and unique for every device. Geohots NCKBF program could do around 100,000 keys/second which would produce a hit in many years, or complete a search in 317 years. To get to a point where this is actually doable we would need many orders of magnitude of improvement. Even if you use a PS3 (would we still want to use this??) or special hardware (within 1,000 US$ range) you will only get an improvement of 20-100 times.. which doesn’t help much.

Now, luckily, with the exploits they have now, they can’t unlock your baseband, but they *can* capture more information from the baseband to speed up this cracking process. Since the NORID and CHIPID (unique for every device) are known, you’d apparently only have to check 40 more bits (5 digits). A 40 bits key is theoretically crackable on “home hardware” within a week (24/7). The downside of this approach is that you’ll have to keep your computer turned on, and your iPhone has to be connected. And that is the reason why they never tried it before. Please note that this method is completely theorical and has been NOT tried at all till this moment.

3. Now what? Should I sell my locked iPhone 4? I’d wait for more information on this “NCK-unlock”. Right now it’s pretty vague what timeframe we’re talking about. If the Dev-Team can pull this method off, it’d be very promising for those waiting for an unlock. If this method turns out to be not doable, I’d consider selling your iPhone 4 and save up for a factory unlocked iPhone 5.

4. Do you think there is every going to be an unlock? Of course. But that’s unlikely to be any time soon (with soon being <1 month).

5. If the NCK method fails, how long do you think it will take for the Dev-Team to unlock the iPhone 4? No ETA at all. Could be a few weeks, but it could easily be a few months as well.

Hope this helps.

@veeence



 


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  Reply # 447506 11-Mar-2011 10:46
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Might just be me, but it sounds like this is an unlock for a carrier-locked handset, not a jailbreak. Or am I reading it wrong?




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Master Geek


  Reply # 447508 11-Mar-2011 10:52
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SaltyNZ: Might just be me, but it sounds like this is an unlock for a carrier-locked handset, not a jailbreak. Or am I reading it wrong?


It is indeed for a carrier unlock, Greenpois0n and Redsn0w are used for Jailbreaking.

 
 
 
 


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  Reply # 447513 11-Mar-2011 11:13
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Fair enough... relatively few locked handsets here though.




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Master Geek


  Reply # 447773 12-Mar-2011 11:21
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Yea true, just thought I'd share it for those who ended up with American iPhones just laying around.There is a few, I have one here too that I'm waiting to unlock.

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Ultimate Geek


  Reply # 448276 14-Mar-2011 17:08
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What is the goss for a unlock for the 3gs on 4.3?




Toys:  iphone 4s; PS3 good times.  13inch macbook pro.   ipad 3. ï£¿ 27inch imac.   airport express & time machine. raspberry-pi running xbmc and a gopro try hard.

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  Reply # 448277 14-Mar-2011 17:17
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