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Monday, November 22, 2010

Dev-Team Blog Thanksgiving with Apple Nov. 22

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Orginal Dev-Team Blog Thanksgiving with Apple

Thanksgiving with Apple
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With Turkey Day a few days off, today Apple publicly released FW version 4.2.1.  As always, ultrasn0w unlockers please stay far far away from this official firmware (and all official firmware).  Wait for the ability to create custom 4.2.1. IPSWs that don’t update your baseband!  If you’re not an unlocker, read on!

The best news of all is for owners of iPhone3G, older iPhone3GS, and non-MC iPod touch 2G.  Due to a combination of our original pwnage2 exploit, the arm7_go exploit, 24kpwn, and limera1n, your device is “just as jailbreakable as ever.”  You reap the full benefit of an untethered 4.2.1 jailbreak.

Next are the owners of all the more recent devices.  The good news there is that due to geohot’s limera1n exploit, all recent devices can be jailbroken (this will be true until Apple released new hardware that fixes geohot’s limerain exploit in the bootrom).  The bad news is that right now, the 4.2.1 jailbreak is *tethered* on all of these recent devices.  

A tethered jailbreak means that each time your device loses battery power or needs to be rebooted, you must attach it to a PC or Mac to boot into the jailbroken state.  @comex is working hard on a method that may untether the 4.2.1 jailbreak, but it will require you to have your 4.1 SHSH blobs in order to use it.  No word on how much more effort it will take though (please don’t bug @comex about it!).  (We also have an alternative method that may work, but @comex’s method is much more elegant.)

So when does all this 4.2.1 jailbreak action happen?  Well if you’re a JB developer or tinkerer, you’ve already probably used the redsn0w mentioned in our last post to jailbreak 4.2.1 and at least get SSH working.  But beyond that, there are still some last minute issues with MobileSubstrate and comex’s kernel patches that are being fixed.  We’ll tweet and post a blog update when it’s all available (we hate to give ETAs, but barring any unforeseen problems, probably later today).

In the meantime, please make sure you have your 4.1 SHSH blobs for all your devices.  These will be important even for firmware beyond 4.1 (using both comex’s method and our alternative, depending on how each of them turn out.)

ultrasn0w unlock:  After redsn0w is officially released with the new Cydia and kernel patches, we’ll be able to assess the unlock situation.  It’s already looking very promising though, so expect the unlock for the 3G and 3GS to be coming this week.  The i4 unlock is taking more effort though, and no further concrete info is available about that yet.

Feel free to ask questions in our comments section below, where we’ve got some awesome new additional moderators — sherif_hashim, dhlizard, and Frank55!

The iPhone Dev Team has just posted a new blog post informing the status of unlock and jailbreak of the newly released iOS 4.2.1. The post starts by warning unlockers to stay away from iOS 4.2.1 until they release new tools to creat custom .IPSW firmwares that don't update your baseband.

However, jailbreak for older devices on iOS 4.2.1 shouldn’t be a problem at all as the post states:
The best news of all is for owners of iPhone3G, older iPhone3GS, and non-MC iPod touch 2G. Due to a combination of our original pwnage2 exploit, the arm7_go exploit, 24kpwn, and limera1n, your device is “just as jailbreakable as ever.” You reap the full benefit of an untethered 4.2.1 jailbreak.
For newer devices as iPhone 4, iPhone 3GS, iPod touch 4G, iPod touch 3G and iPad will have to wait longer for untethered jailbreak
Next are the owners of all the more recent devices. The good news there is that due to geohot’s limera1n exploit, all recent devices can be jailbroken (this will be true until Apple released new hardware that fixes geohot’s limerain exploit in the bootrom). The bad news is that right now, the 4.2.1 jailbreak is *tethered* on all of these recent devices.
Here comes the good news for iPhone 3GS and iPhone 3G who rely on unlock, the iPhone Dev Team has announced that the unlock is ready and will be uploaded to the repo once the new version of Redsn0w is out, this will happen something this week:
ultrasn0w unlock: After redsn0w is officially released with the new Cydia and kernel patches, we’ll be able to assess the unlock situation. It’s already looking very promising though, so expect the unlock for the 3G and 3GS to be coming this week. The i4 unlock is taking more effort though, and no further concrete info is available about that yet.
To sum up what've been said above, you'll all get a semi-tethered jailbreak probably tonight with patched Cydia and MobileSubstrate. For unlockers, only iPhone 3G and iPhone 3GS users will get the unlock this week, iPhone 4 users will have to wait a bit longer. We’ll keep you posted about jailbreak and unlock for iOS 4.2.1 but hopefully, we’ll be able to tweak our iPad folders and settings soon with some exciting tweaks.
Here some More ............

Jailbreak iOS 4.2.1 with GreenPois0n Within Few Days

The iPhone hacker p0sixninja, behind GreenPois0n jailbreak tool has just posted on his Twitter account that he will update GreenPois0n tool to support the newly released iOS 4.2.1 on all iOS devices.
GreenPois0n should be updated to support 4.2.1 (tethered or semitethered) within a few days.
However, we'll keep you updated whenever the tool is available for download and we'll post full how-to guides to use the tool, stay tuned.

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