{"id":10691,"date":"2011-02-04T17:59:46","date_gmt":"2011-02-04T14:59:46","guid":{"rendered":"http:\/\/jailbreak-iphone.ru\/?p=10691"},"modified":"2011-03-10T16:44:50","modified_gmt":"2011-03-10T13:44:50","slug":"tutorial-jailbreak-ios-421-greenpois0n-mac","status":"publish","type":"post","link":"https:\/\/jailbreak-iphone.ru\/en\/tutorial-jailbreak-ios-421-greenpois0n-mac\/","title":{"rendered":"Step-by-step tutorial: Jailbreak iOS 4.2.1 on iPhone, iPod or iPad using Greenpois0n for Mac OS"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10775\" title=\"gp_web\" src=\"http:\/\/iphoneroot.com\/wp-content\/uploads\/2011\/02\/gp_web1.jpg\" alt=\"gp_web\" width=\"350\" height=\"350\" \/><\/p>\n<p>These are step-by-step instructions on how to <a href=\"https:\/\/jailbreak-iphone.ru\/en\/tag\/jailbreak-ios-4-2\/\" target=\"_blank\" class=\"slink\" title=\"jailbreak iOS 4.2\" >jailbreak iOS 4.2<\/a>.1 on iPhone 3GS, iPhone 4, iPad, iPod Touch 2G, iPod Touch 3G, iPod Touch 4G using Greenpois0n for Mac OS X. <a href=\"https:\/\/jailbreak-iphone.ru\/en\/category\/all\/tutorial\/\" target=\"_blank\" class=\"slink\" title=\"Tutorial\" >Tutorial<\/a> for Windows users is available <noindex><a target=\"_blank\" rel=\"nofollow\" href=\"http:\/\/iphoneroot.com\/tutorial-jailbreak-ios-421-greenpois0n-windows\/\" target=\"_blank\" ><strong>here<\/strong><\/a><\/noindex>. All the steps are the same for all devices.<\/p>\n<p>Greenpois0n has been  updated to support the iOS 4.1 and iOS 4.2.1 <a href=\"https:\/\/jailbreak-iphone.ru\/en\/category\/all\/software\/firmware\/\" target=\"_blank\" class=\"slink\" title=\"firmware\" >firmware<\/a>.  Use Limera1n if you want to jailbreak iOS 4.0, iOS 4.0.1, iOS 4.0.2.<\/p>\n<p>Remember:  Greenpois0n recommends a clean restore before continuing.<\/p>\n<p><strong>Unlockers<\/strong>: do not  update to iOS 4.1 or iOS 4.2.1 if you need the <a href=\"https:\/\/jailbreak-iphone.ru\/en\/category\/all\/unlock\/\" target=\"_blank\" class=\"slink\" title=\"unlock\" >unlock<\/a>.  Ultrasn0w does  not support that baseband yet.  The only exception is the iPhone 4.  You can unlock iPhone 4 with iOS 4.1 using ultrasn0w. Experienced users can also try update to iOS 4.2.1 without upgrading your baseband by using  TinyUmbrella. Start TSS Server-&gt;Start iTunes-&gt;Plug in your  iPhone-&gt;Restore 4.2.1-&gt;Error 1013-&gt;Put phone into DFU  Mode-&gt;Launch Greenpois0n.<\/p>\n<p><strong>We are not authors of this app. We do not promise that everything will go well, use this tutorial at your own risk.<\/strong><\/p>\n<p><b><font size=4><noindex><a target=\"_blank\" rel=\"nofollow\" href=\"http:\/\/iphoneroot.com\/tutorial-jailbreak-ios-421-greenpois0n-mac\/\" target=\"_blank\" >Read the rest &gt;&gt;&gt;&gt;<\/a><\/noindex><\/font><\/b><\/p>","protected":false},"excerpt":{"rendered":"<p>These are step-by-step instructions on how to jailbreak iOS 4.2.1 on iPhone 3GS, iPhone 4, iPad, iPod Touch 2G, iPod Touch 3G, iPod Touch 4G using Greenpois0n for Mac OS X. Tutorial for Windows users is available here. All the steps are the same for all devices. Greenpois0n has been updated to support the iOS [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,15,16,10,11,889],"tags":[26,40,41,648,1200,44,901,903,68,1414,1161,539,542,1415,139,993,994,995,1078,1090,1079,1109,1202,161,162,166,167,706,173,177,178,179,180,1093,847,184,187,1115,1119,1011,199,200,599,267,302,1285,1410,312,1411,1418,782,314,636,323,328,808,807,1069],"class_list":["post-10691","post","type-post","status-publish","format-standard","hentry","category-all","category-cydia","category-firmware","category-software","category-tutorial","category-unlock-jailbreak","tag-2-1","tag-3g","tag-3gs","tag-4-0","tag-4-2-1","tag-4g","tag-ads","tag-app","tag-baseband","tag-cydia","tag-ed","tag-edge","tag-error","tag-firmware","tag-greenpois0n","tag-ios","tag-ios-4","tag-ios-4-0","tag-ios-4-0-1","tag-ios-4-0-2","tag-ios-4-1","tag-ios-4-2","tag-ios-4-2-1","tag-ipad","tag-iphone","tag-iphone-3g","tag-iphone-3gs","tag-iphone-4","tag-ipod","tag-ipod-touch","tag-ipod-touch-2g","tag-ipod-touch-3","tag-ipod-touch-3g","tag-ipod-touch-4","tag-ipod-touch-4g","tag-itunes","tag-jailbreak","tag-jailbreak-ios-4","tag-jailbreak-ios-4-2","tag-limera1n","tag-mac","tag-mac-os-x","tag-poi","tag-redsn0w","tag-test","tag-tinyumbrella","tag-tutorial","tag-ultrasn0w","tag-unlock","tag-unlock-jailbreak","tag-update","tag-usb","tag-web-browser","tag-wi-fi","tag-windows","tag-808","tag-807","tag--ios-4"],"_links":{"self":[{"href":"https:\/\/jailbreak-iphone.ru\/en\/wp-json\/wp\/v2\/posts\/10691","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jailbreak-iphone.ru\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jailbreak-iphone.ru\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jailbreak-iphone.ru\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jailbreak-iphone.ru\/en\/wp-json\/wp\/v2\/comments?post=10691"}],"version-history":[{"count":0,"href":"https:\/\/jailbreak-iphone.ru\/en\/wp-json\/wp\/v2\/posts\/10691\/revisions"}],"wp:attachment":[{"href":"https:\/\/jailbreak-iphone.ru\/en\/wp-json\/wp\/v2\/media?parent=10691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jailbreak-iphone.ru\/en\/wp-json\/wp\/v2\/categories?post=10691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jailbreak-iphone.ru\/en\/wp-json\/wp\/v2\/tags?post=10691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}