Geek Posted February 4, 2011 Posted February 4, 2011 <div class="KonaBody"><p><img src="http://osxdaily.com/wp-content/uploads/2011/02/how-to-jailbreak-ios4-2-1-with-greenpois0n-untether.jpg" alt="how to jailbreak ios4-2-1 with greenpois0n untether" title="how to jailbreak ios4-2-1 with greenpois0n untether" width="533" height="344" class="aligncenter size-full wp-image-12382" /></p> <p>The GreenPois0n untethered jailbreak for iOS 4.2.1 has been released and it allows you to <a href="http://osxdaily.com/tag/jailbreak/">jailbreak</a> any iOS 4.2.1 device completely untethered. This will work on the iPhone, iPod touch, and iPad.</p> <h2 style="font-size:1.2em;">How to Jailbreak iOS 4.2.1 Untethered with GreenPois0n 1.0 RC5</h2> <p>Backup your iPhone or iOS device before proceeding. Do not use this jailbreak if you rely on a carrier unlock!</p> <ul> <li><a href="http://osxdaily.com/2011/02/03/greenpois0n-untethered-jailbreak-for-ios-4-2-1-download/">Download GreenPois0n untethered jailbreak</a></li> <li>Connect the iOS device to the computer with GreenPois0n 1.0 RC5</li> <li>Launch GreenPois0n and click on “Jailbreak”</li> <li>Follow the onscreen instructions and counter carefully, this lets you know how long to hold buttons</li> <li>Press and hold the sleep button for 2 seconds</li> <li>Continue holding sleep, press and hold home for 10 seconds</li> <li>Release sleep button, continue holding home button</li> <li>Your iOS device should now be in <a href="http://osxdaily.com/2010/06/24/iphone-dfu-mode-explained-and-how-to-enter-dfu-mode-on-your-iphone/">DFU mode</a> and it is ready for the jailbreak</li> <li>Click on “Jailbreak” and let the exploit install</li> <li>After your device has been jailbroken, go to your iPhone and look for the green “Loader” icon and launch this to install Cydia</li> </ul> <p>GreenPois0n 1.0 RC5 includes the ability to have custom animated boot logos. This version of GreenPois0n is superior to the latest <a href="http://osxdaily.com/tag/redsn0w/">Redsn0w</a> release because it does not require developer saved SHSH blobs of 4.2b3.</p> </div> <p><a href="http://feedads.g.doubleclick.net/~a/-NmmVr01Dg2K-ZinK3e8uB5vyYk/0/da"><img src="http://feedads.g.doubleclick.net/~a/-NmmVr01Dg2K-ZinK3e8uB5vyYk/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/-NmmVr01Dg2K-ZinK3e8uB5vyYk/1/da"><img src="http://feedads.g.doubleclick.net/~a/-NmmVr01Dg2K-ZinK3e8uB5vyYk/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/osxdaily?a=iR8svkTbpqI:7FNuehH9Dig:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/osxdaily?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/osxdaily?a=iR8svkTbpqI:7FNuehH9Dig:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/osxdaily?i=iR8svkTbpqI:7FNuehH9Dig:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/osxdaily?a=iR8svkTbpqI:7FNuehH9Dig:D7DqB2pKExk"><img src="http://feeds.feedburner.com/~ff/osxdaily?i=iR8svkTbpqI:7FNuehH9Dig:D7DqB2pKExk" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/osxdaily?a=iR8svkTbpqI:7FNuehH9Dig:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/osxdaily?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/osxdaily?a=iR8svkTbpqI:7FNuehH9Dig:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/osxdaily?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/osxdaily/~4/iR8svkTbpqI" height="1" width="1"/> View the full article
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