- iPhone 3GS (old bootrom)
- iPhone 3
- iPod touch 2G (Non-MC Model)
- iPhone 3GS (new bootrom)
- iPhone 4
- iPad
- iPod touch 2G (MC Model)
- iPod touch 3G
- iPod touch 4G
- First of all,Press and Hold the sleep button for 2 seconds.
- While holding the sleepbutton,Press the Home button for 10 seconds.
- Now release the sleep button but continue Holding the home button for about 15 seconds.
Redsn0w0.9.6b4 has just been released and in a little time between now the Jailbreak for iOS 4.2.1 has also been released using this Latest Version of Redsnow i.e Redsn0w0.9.6b4.This new version of redsn0w is also based on GeoHot's Limera1n bootroom exploit. Here we have a Complete guide on how to Jailbreak one iPhone4, 3gs, 3g, iPad, iPodTouch with Redsn0w 0.9.6b4.
The bad news is that right now, the redsn0w 0.9.6b4 is a tethered or semi-tethered jailbreak for some devices (i.e. you will lose your jailbreak every time you reboot your iDevice, so you have to follow the following steps every reboot to have a jailbroken device )
Untethered Devices:
Tethered Devices:
Thing You should Know:
Those of you who rely on a carrier unlock stay away from Redsn0w and iOS 4.2.1.
So let's start that Simple step by Step Guide:
First of all Download the Following:
iOS 4.2.1 (Final version) for your device version. (Download Link)
Step 1: Update to 4.2.1 firmware using the IPSW file you just downloaded via iTunes 10.1.
Step 2: Launch Redsn0w 0.9.6b4, and browse for iOS 4.2.1 firmware final version
Step 3: Select "Install Cydia" and click on "Next"
Step 4: Now make sure your device is both OFF and PLUGGED IN to the computer before you click “Next”.
Step 5: Now you have to put your Device into Dfu Mode, Follow the simple steps to put your Device into DFU Mode:
Step 6: You will Get a Jailbroken Device on the latest iOS 4.2.1 as soon as the process ends
Step 7: This step is only for these devices iPhone 4, 3GS (New Bootrom), iPod touch 4G, 3G, 2G, iPad. While this is tethered jailbreak and whenever you want to do anything related to jailbreak like SSH your device, or running Cydia, you must first run your device in the so called “jailbroken state” on every reboot by using “Just boot tethered right now” option.
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