How to Jailbreak and Unlock Your iPhone 3G Using PwnageTool (Mac) [4.2.1] - iClarified
iOS 4.2.1 jailbroken, available now - CNET
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
Jailbreak iPhone iOS 4.2.1 with RedSn0w
Greenp0ison finally unleashes iOS 4.2.1 untethered jailbreak | Digital Trends
Come effettuare il Jailbreak iOS 4.2.1 con Greenpois0n » Computer Lounge
How to Jailbreak Any iOS 4.2.1 Device with Redsn0w 0.9.6b4 (iPhone, iPad or iPod Touch) « Smartphones :: Gadget Hacks
GUIDA: eseguire il jailbreak untethered di iOS 4.2.1 su Window con Sn0wbreeze 2.2 - iPhone Italia
Question] Found an iPhone 3G On iOS 4.2.1 What should I do with it : r/ jailbreak
How to Jailbreak your iPhone 4.2.1 with GreenPois0n
How to Jailbreak iPhone 4.2.1 with PwnageTool 4.2 (Mac) • iPhone in Canada Blog
Install Cracked Apps on iOS 4.2.1 with AppSync 4.2 - John's Phone - The World's Simplest Cell Phone
GUIDA iSpazio: Come eseguire il Jailbreak di iOS 4.2.1 con Redsn0w 0.9.6b4 | Mac e Windows [AGGIORNATO] | iSpazio
MultiIconMover Now iOS 4.2.1 Compatible | Cydia - MacStories
How to Jailbreak iPhone 3G with iOS 4.2.1
3GS iPhone 4.2.1 tethered jailbreak and unlock that works without battery drain problem – @sepdek's
Jailbreak 4.2.1 iOS iPhone 4, 3GS, 3G, iPod touch 4G, 3G with Redsn0w | Redmond Pie