This tutorial shows you step-by-step how to jailbreak iOS 4.2.1 with redsn0w 0.9.6b4 for your iPad, iPhone or iPod Touch.
These are some iDevices with IOS version 4.2.1 only equipped with a tethered jailbreak. This means you need to connect your Apple device to a computer after every reboot to activate it. iPhone 3G and 3G with old BootROM is not required. After you’ve got your iPhone “gejailbreakt”, the iPhone is not automatically unlocked. Follows this in a second step, discussed further in this article. And, anyway Unlocker should stay away from redsn0w.
What you need for the jailbreak with redsn0w:
- iTunes 10.1
- Redsn0w 0.9.6b4
- iOS iOS 4.1 or 4.2.1 stored on hard disk
The following can be jailbreak iDevices with the tool (the links are hidden behind the respective IOS 4.2.1 version):
- iPhone 4 (tethered)
- iPhone 3G (new bootrom> tethered)
- iPhone 3G (untethered)
- iPod Touch 4G (tethered)
- iPod Touch 3G (tethered)
- iPod Touch 2G (tethered MC models)
- iPad (tethered)
Additional links for iOS 4.1:
- iPhone 3G iOS 4.1
- iPhone 3G iOS 4.1
Step 1: Download all necessary programs. bring iTunes to version 10.1. Your iDevice via iTunes and sync back up and import the relevant IOS version.
Step 2: Start redsn0w
Step 3: Click “Browse” button, select the downloaded IOS version, and “Open” button. The firmware ipsw is identified with the extension. Now you should see the message “IPSW successfully identified. ‘See. Continue with “Next”.
Step 4: In the next window you will get a list of choices. The picture below shows the selection screen of the iPhone 3G – 3G when the options are fewer, because for example, multitasking, individual wallpaper and the like are automatically supported. Who wants to have these features yet installed on his iPhone 3G, they should click.
In addition, here you have the choice to bring your own logos on your iPhone.But you must keep the following guidelines: Observe the logo has the dimensions 320 × 480, and must be no larger than 100KB – and it requires a. alpha channel . Similarly, a logo for the Recovery mode can be integrated, which meets the same requirements.
You have to select all these options – Cydia must be selected – so you click on “Next”.
Learn more about this window:
The box “Just enter pwned DFU mode right now” needed it, if its a custom firmware einspielenmöchet on the device that was either created by Sn0wbreeze or PwnageTool. Selects the box from her, she moves directly to the pwned DFU mode.
Who is an iPhone 4 or has another iDevice, which has just installed a tethered jailbreak should also know what function the ” Just boot tethered right now “ owns. This feature requires you to activate your device after a restart. (Below)
Step 5: Now you get the call off your iDevice. Do this now, but let it remain connected to your computer.
Step 6: Next, you bring the iDevice in the so-called DFU mode. Sure you hold the power button for 3 seconds, then also the home button for 10 seconds. Then take your finger off the power button, let the home button still pressed. Have you followed this procedure correctly, the device should now be reached in DFU mode. Redsn0w does the rest for you.
Is already provided with a Jailbreak your iDevice – congratulations!
For iPhone, 3G (new BootROM), iPod touch & iPad 2G/3G/4G: This equipment must be connected to the computer after every reboot. To activate the device again you must repeat the process described de from step 4. In the selection window, but only ” Just boot tethered right now “button. (Everything with no guarantee!)
UPDATE: This version of the jailbreak tools does not seem to be compatible with the updated unlock tool Ultrasn0w 1.2. Unlocker So as usual: Hands off! A tutorial on the new unlock follows.
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Here’s a video tutorial (English):
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