早前我們報導過 Dev-Team 的 @comex 無法在聖誕前完成原本打算推出的 iOS 4.2.1 Untethered Jailbreak ，所以要搬出另外的 Backup plan。目前，Dev-Team 已經開始招募 Mac User 測試新版本的 redsn0w，預計會在短時間內正式推出！
以下為參加 redsn0w 新版本測試的條件：
- Has Mac OS X
- Has legal access to iOS 4.2 Beta 3 firmware
- Doesn’t require carrier unlock
- Has iOS 4.2 B3 hashes stored in Cydia or using TinyUmbrella
如果你符合以上的條件，可以在 Twitter 中跟隨 @redsn0w_testers 取得最近的消息。
[資料來源：Dev-Team via Blogsdna]
redsn0w tester invitation
Over the Christmas weekend we’ll be releasing a version of redsn0w that implements the “backup plan” to the 4.2.1 untethered jailbreak. We’re seeking your help to test this redsn0w and find any bugs before we do a general release!
(If you have an iPhone 3G, or an old-bootrom ipt2g or iPhone 3GS, you already have an untethered jailbreak! Just use the latest public redsn0w.)
To keep things manageable, this will be a Mac-only test program. We also request that any volunteers *NOT* need the ultrasn0w unlock (in case things go very wrong).
Right now, the “backup plan” requires that you have the 4.2b3 IPSW on your Mac, and that Cydia has your 4.2b3 SHSH hashes. Please don’t pirate that 4.2b3 IPSW! (We’re also working on a way that this technique might apply to all those with 4.1 IPSWs, but that’s not the first goal right now.)
If you fit all the above qualifications, please follow @redsn0w_testers on twitter for announcements, and use the comments section here for feedback. Thanks very much for your help, and Happy Holidays!