Dev Team說：Thanksgiving with Apple

[iPhone派報生]

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.

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!



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[mrbbcall316]

幫大家找來了翻譯貼上~

大家期待很久的iOS 4.2終於發表，在此同時，許多JB使用者同時也在等待新JB軟體的好消息。iPhone Dev-Team在iOS 4.2更新後，簡略的更新了目前iOS 4.2的JB狀況。

iOS 4.2.1確定可以JB

對於iPhone 3G、iPhone 3GS（舊iBoot）、iPod Touch第二代（非MC）機型的使用者而言，好消息是之前找到的漏洞仍然適用，這些機型已經確定永遠可以JB，通時是完全JB。
新裝置的使用者，包含iPhone 3GS（新iBoot）、iPod Touch第三代、iPod Touch第四代、iPhone 4、iPad，Geohot找到的漏洞仍然可以使用，（除非Apple採用新的硬體修正bootrom的漏洞，否則這個漏洞無法透過軟體修正）。因此可以 確定目前所有的新機型仍然可以JB。
不過壞消息是，目前能達到半JB（tethered）的狀態，換句話說這些新機型的裝置，在JB後，一旦需要重新開機，都必須連接到電腦透過JB工 具啟動它，否則仍然不能使用。Comex目前正在努力研究，找出完全JB的方式，不過這個方式極有可能需要 4.1的SHSH備份，因此建議大家趁Apple還沒取消驗證之前，趕快備份。
何時iOS 4.2.1的JB工具會發表？目前最新的resn0w 0.9.6b3已經可以JB iOS4.2.1，不過這個版本只建議開發者和熟悉JB的人使用，仍然有很多的錯誤需要修正。一旦所有的東西準備好後，新的JB工具會立即發表。
如果你持有的iPhone是美國、日本或其他國家的鎖機版本，Unlock應該會在新的Cydia和kernel 套件準備好後發表，iPhone 3G、iPhone 3GS的新版ultrasn0w unlock軟體應該會在本週之前發表，可以解開所有iOS 4.2.1和之前版本的數據機版本。至於iPhone 4的iOS 4.2.1 unlock可能需要較久的時間，目前還不確定是否有辦法Unlcok。


轉貼於 http://www.itouchtw.com/archives/8246

[pilikang]

今年七月買的3gs那肯定是新版的囉？這麼早就jb 4.2.1，那之前的軟體有支援嗎？謝謝

[q2571Sam]

今年七月買的3gs那肯定是新版的囉？這麼早就jb 4.2.1，那之前的軟體有支援嗎？謝謝

是的！！！
不一定全部都有支援喔！！！