![]() iphone 4 - iphone 6 - sim card 1 (invalid for iphone 4, but works on iphone 6. You can follow me on Twitter or join our Facebook fanpage to keep yourself updated on all the latest iPhone jailbreaking and unlocking releases. Initially I observed 2 times in a week and from yesterday Invalid SIM. So to start the device in jailbroken state again, just select “Just boot tethered right now” option in Redsn0w.ĭownload iOS 4.2.1 for iPhone 4, 3GS, 3G, iPad, iPod touch Step 7) As the jailbreak is tethered, the device will loose the jailbroken state on every reboot. When done, your iOS device will automatically reboot to the jailbroken iOS 4.2.1 firmware.įor iPhone 4, 3GS (New Bootrom), iPod touch 4G / 3G / 2G, and other newer devices: Wait while it jailbreaks your iOS device. Step 6) It is up to Redsn0w now to do the rest. Follow the on screen instructions to enter DFU mode. Precisely, hold “Power” and “Home” button for 10 seconds and then leave “Power” button but keep holding “Home” button for further 10 seconds or until the installation begins. ![]() Follow the instructions and proceed by clicking “Next”.Īfter clicking next, you need to grab your iOS device to enter DFU mode. Step 5) A window will appear instructing you to power off and plug in the iOS device. The download of iOS 4.2. NOTE: Those of you who rely on a carrier unlock MUST STAY AWAY from Redsn0w and iOS 4.2.1. ![]() Old Ipad Browser My wife is thrilled with the new iPad 2 she inherited. Remember Redsn0w will only work with iOS 4.2.1 and an iPod Touch 2G that isnt the MC model. So until and unless Comex of Spirit and JailbreakMe fame comes up with another untethered hack for iOS 4.2.1, the jailbreak we get for the newer devices will be tethered (or semi-tethered). Step 1: Download and launch the iPhone/iPad/iPod Recovery Download and launch. After downloading Redsn0w, open the file and run the software if you are prompted (on a PC). Old devices like iPhone 3GS (old bootrom), iPhone 3G, iPod touch 2G (Non-MC Model) and other devices can be jailbroken -untethered right now using this latest version of Redsn0w. This so called tethered or semi-tethered jailbreak condition in Redsn0w 0.9.6b4 however only applies to the new devices like: iPhone 3GS (new bootrom), iPhone 4, iPod touch 2G (MC Model), iPod touch 3G and the iPod touch 4G. This tutorial was made using an iPhone 3GS but the steps are the same, no matter what device you are using Step 1:Make sure iTunes is updated to its latest version. The only problem is that it is a tethered jailbreak, which means you will have to boot it into a “jailbroken state” on every reboot. This step by step guide will show you how to jailbreak your iPhone iOS 4.2.1 with RedSn0w. The iPhone Dev Team has just released Redsn0w 0.9.6b4 today which brings first proper jailbreak, with working Cydia and MobileSubstrate for all iOS 4.2.1 devices.įor those of you who don’t know, Redsn0w 0.9.6b4 is based on Geohot’s Limera1n bootrom exploit which has already pwned all current iOS devices for life.
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