How to Jailbreak Any iOS 4.2.1 Device with Redsn0w 0.9.6b4 (iPhone, iPad or iPod Touch) « Smartphones :: Gadget Hacks
Jailbreak and unlock iOS 4.2.1 with redsn0w 0.9.6b5 | OSXDaily
How to Jailbreak Ipod Touch With Firmware 4.2.1 or Lower : 6 Steps - Instructables
Untethered iOS 4.2.1 jailbreak tool released - CNET
How to Jailbreak a 2nd Generation iPod Touch (with Pictures)
Greenpois0n untethered jailbreak for iOS 4.2.1 comes to Windows | Engadget
Question] Just jailbroken my iPod 2nd gen for fun.... does anyone have a compatible tweak list for IOS 4.2.1?? : r/jailbreak
GUIDA: eseguire il jailbreak untethered di iOS 4.2.1 su Window con Sn0wbreeze 2.2 - iPhone Italia
How To: Jailbreak iOS 4.2.1 (Untethered) [Windows]
Jailbreak definitivo firmware 4.2.1 su iPhone (3G, 3GS, 4) iPod Touch(2G, 3G, 4G) e iPad unthetered con GreenPois0n RC5 [MAC] | Guide
How to Jailbreak iOS 4.2.1 Untethered with GreenPois0n 1.0 RC5 | OSXDaily
4.2.1 Untethered Jailbreak for iPhone 4, 3GS, 3G, iPad, iPod touch via PwnageTool 4.2 Released | Redmond Pie
iOS 4 - Wikipedia
Come effettuare il Jailbreak iOS 4.2.1 con Greenpois0n » Computer Lounge
Jailbreak del firmware 4.2.1 su iPhone (3G, 3GS, 4) iPod Touch(2G, 3G, 4G) e iPad con Redsn0w [MAC & WINDOWS] | Guide
iOS 4.2 Available to Download Now, Adds Multitasking, 100 More Features to iPad
Firmware iOS 4.2.1 per dispositivi Apple iPhone, iPod Touch, iPad
GUIDA iSpazio: Come eseguire il Jailbreak di iOS 4.2.1 con Redsn0w 0.9.6b4 | Mac e Windows [AGGIORNATO] | iSpazio
question] is it still possible to jailbreak iPod Touch 2G (MC) model ? my version is 4.2.1. this model is also downgradable to 4.1 so that could work too. Thank you! : r/LegacyJailbreak
GUIDA: come installare applicazioni e tweak di Cydia su iOS 4.2.1 GM utilizzando Redsn0w 0.9.6b3 - iPhone Italia