The iPhone Dev Team has just released their "backup plan" for the untethered IOS 4.2.1 jailbreak released. They published a beta version of redsn0w, which you untethered iPhone 4, fourth-generation iPod touch and IPAD can jailbreak. This solution you will need access to the IOS ShSh and IPSW 4.2 beta 3. A solution that works with the Comex's 4.1 ShSh is likely to follow later. There is no Windows version of redsn0w 0.9.7b3 available.
Are you dependent on the ultrasn0w-unlock, then you should not use the new version of redsn0w. Even if you have a different device than the three listed above, you can not use new version of redsn0w. Be aware that it is a solution for beta testers, so there may be things wrong.
Read the instructions on the iPhone Dev Team blog. Do you doubt whether you have enough knowledge in order to perform the jailbreak: Read the following list of relevant articles and immerse yourself in the forum in the experiences of other users. Our advice: when in doubt do not! Make backups of SMS messages, photos and other content on your device that you definitely want to keep.
The iPhone Dev Team will after this jailbreak to work with the latest baseband unlock for the iPhone 4. This is expected to appear in mid January. Then all attention will be focused on the downgrading of the iPad baseband. This is used to unlock the latest iPhone 3GS and 3G.
Before you start you need the following information:
- It is a beta test program, not suitable for beginners. Make backups.
- Use this version if you redsn0w not depend on the ultrasn0w unlock.
- Bluetooth works yet. We are working.
- Other things like YouTube are not yet working properly, the jumping board to crash.
- Usbmuxd the software must be installed on your Mac.
You also need:
- iPhone 4, iPad or iPod touch 4G with IOS 4.2.1 (no other models)
- Personal Signature ShSh with IOS 4.2 beta 3
- The ipsw file IOS 4.2 beta 3
Step 1: Restore your IOS IOS device with the official 4.2.1 firmware. Jailbreak the redsn0w thereafter. If you are already a tethered jailbreak 4.2.1 at IOS you have completed this step.
Step 2: Go to Cydia and check the signature for IOS ShSh 4.2 beta 3 is present. This is the start of the Cydia app shown at the top of the home screen with the line 'ShSh: IOS 4.2b3 (and possibly other firmware versions). How you store your personal signature, we have been extensively explained.
Step 3: Install usbmuxd on your Mac, unzip it and launch the Terminal application. Go to the folder python client and enter:
chmod + x tcprelay.py
Run. / Tcprelay.py 22:2222-t
Step 4: Download redsn0w 0.9.7 beta 3 and close your IOS device. Browse to the IPSW file IOS 4.2.1. Redsn0w recognize the firmware and starts.
Step 5: Click Next and select "Jailbreak Monte. You can now select IOS 4.2 beta 3.
Step 6: Turn your IOS device but leave it connected to your computer. Go to the next step and put your iPhone in DFU mode.
Step 7: You receive a message that the operation was successful. If not, try again iPhone in DFU mode.
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