Cziriblog

The iPhone Dev Team has announced the iOS 4.2.1 jailbreak public beta testing program. We know several are letting their steam off in comments. But hey, look at the bright side the tools are being tested publicly instead of being left out without any hope or update about the jailbreak.
This beta testing is limited only to those who:
- Own Mac
- has iOS 4.2 beta 3 SHSH blobs backed up with Cydia
- Completely aware with the iOS jailbreak process steps
- Ready to risk their Carrier Unlock until a final working version is released
- Intended for iPhone 4, iPod touch 4 and iPad
This is not meant for average users, I repeat – this is NOT meant for average users. If you plan to go ahead then you’re on your own. You’ll just end up tearing your hair and turning your device into a paperweight. For performing the beta test, you need to download the USBMUX software from here along with dependent files mentioned on the page.

Here are few pointers for using the “backup method” aka Jailbreak Monte put up by iPhone Dev Team:

- This is a beta tester program. It’s not a general release!  Things can go very wrong, so please don’t even consider testing if you have pictures or other media on your device that you haven’t backed up!
- For the same reason, please don’t participate if you rely on the ultrasn0w carrier unlock.  Wait for the final version!
- Until we fix some sandbox issues with bluetooth, the bluetooth functionality is disabled.
- This very first beta1 is limited to iPhone4, iPad, and iPod touch 4G.
- Cydia must have your 4.2b3 SHSH blobs saved on file.  (As we approach a general release, we’ll provide a way to let you use locally saved hashes too).
- You must already have the usbmuxd software installed and running on your Mac (this requirement will eventually go away too). The correct invocation of the relay is just as that page says: “./tcprelay.py -t 22:2222”.  If the relay isn’t installed or running correctly by the time the redsn0w ramdisk has started, you’ll need to restore to stock FW again to try it again.  Please test it beforehand to save yourself some time!
Bunch of other dev teams are also working on their own version of jailbreak but it’s not about “Me First” any more. It’s about rolling out a jailbreak that works for all devices flawlessly.

MuscleNerd of iPhone Dev-Team has confirmed today that the next version of Redsn0w will include an option which will allow you to untether your iPhone jailbreak on iOS 4.2.1 without having to restore your device.




MuscleNerd: Thanks to comex, redsn0w can now handle much bigger files than ramdisk 25MB limit. Useful for "backup plan" 4.2 untether

MuscleNerd: @jkurtz87 it shouldn’t require a restore…just another redsn0w run. (That’s the goal!)

The advantage of this will be that you wont have to reinstall any of your iTunes’ or Cydia apps. All you ever have to do will be rerun Redsn0w jailbreak and it will be done!


Expect this new version of Redsn0w for all iOS devices to be available somewhere around the Christmas eve, followed by iPhone 4 unlock on newer basebands in January. We will of course let you know as soon as it is available for download

iOS 4.0.1 has been released for iPhone 4, 3GS and 3G. While the iPhone 4 and 3GS users will have to wait for a new jailbreak tool, iPhone 3G users who doesn’t rely on an unlock can jailbreak their phone on iOS 4.0.1 using Redsn0w 0.9.5b5-5. Again, this is strictly for iPhone 3G only. If you rely on ultrasn0w carrier unlock, DO NOT update to iOS 4.0.1 until further notice.

Step 1: Download iOS 4.0.1 for your version of iPhone. Download links are posted here.

Step 2: Update to this latest firmware using the IPSW file you just downloaded via iTunes 9.2.

Step 3: Start Redsn0w 0.9.5b5-5 (download link given below) and point it to iOS 4 (Final Version), and not iOS 4.0.1 firmware file to proceed with the jailbreak.



Step 4: Now select “Install Cydia” and click “Next”.



Step 5: Now make sure your device is both OFF and PLUGGED IN to the computer before you click “Next”.

Step 6: Connect your device in recovery mode by pressing the Power and buttons continuously.




At this stage you will be presented with a screen where you will have to quickly hold “Power” button and then while holding the “Power” button, you will now have to hold “Home” button too. Now after few seconds release “Power” button but keep holding “Home” button until installation begins.

Step 7: Sit back and enjoy while redsn0w will do all the rest for you. Once done, your iPhone and/or iPod touch will restart automatically and you will find it jailbroken on the latest iOS 4.1 firmware.


iOS 4.0.1 for iPhone 3G

http://appldnld.apple.com/iPhone4/06...6_Restore.ipsw


REDSN0W WINDOWS

http://rapidshare.com/files/40393602...5b5-5.zip.html


REDSN0W MAC

http://rapidshare.com/files/40393513...5b5-5.zip.html

Mac OSX (x86) Download  new redsn0w
Windows Download new redsnow