So recently i bought a second hand iPhone 4 running ios 4.3.1 with gevey sim which works perfectly but the problem is that the jailbreak is tethered so it is really a pain to boot it again again with redsnow. I have been searching for around for quite a time but couldnt find a thing.So please could anyone help me on how to get untethered jailbreak while preserving baseband.
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Tethered to Untethered jailbreak preserving baseband
- Thread starter lucky518
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NOTE: If you are a Windows user, follow our complete step by step tutorial posted here to jailbreak iOS 4.3.1 (untethered) on iPhone 4, 3GS, iPad, iPod touch using Sn0wbreeze 2.5.
Step 1: Download everything required for this jailbreak, here is the list:
Download PwnageTool 4.3 for Mac.
Download iOS 4.3.1 firmware. Put all files to the desktop for quick access.
Step 2: Run PwnageTool application (that you downloaded in Step 1) in Expert mode. Choose your device when this screen appears:
Step 3: When you click the blue next button, a screen will appear asking you to browse for iOS 4.3.1 firmware. Just do it.
Step 4: Now another screen will appear with some options. Just select Build from them and again click the blue forward arrow button.
Step 5: PwnageTool will tell you that it is Building IPSW with the following screen. Let it do its work to create a custom firmware for you.
Step 6: When PwnageTool is done with creating a custom firmware, it will ask you to enter your device in DFU mode. If you dont know how to enter your device in DFU mode, follow these steps:
Press & hold Power and Home buttons for 10 seconds.
Now Release the Power button but do not release the home button for further 10 seconds.
When your iOS device enters the DFU mode, the following blue message appears for confirmation.
Step 7: Now finally you need to restore the custom firmware on your iOS device. Start iTunes and click on the connected iOS device that is located in the sidebar. Now press and hold Shift Key on Windows or press and hold Alt key if your using Mac and click the Restore button ( as shown in the screenshot below).
Clicking on Restore will make iTunes ask you for the custom firmware .ipsw file. Browse for the custom iOS 4.3.1 firmware file that you created in the steps earlier.
Step 8: Your work is done here, iTunes will restore the iOS 4.3.1 firmware on your iOS device and will reboot your device to a jailbroken state.
How-To Unlock iOS 4.3.1:
Ultrasn0w 1.2 is broken on iOS 4.3.1. Wait for the Dev-Team to push new version of Ultrasn0w to unlock your iPhone (compatible basebands: 01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00).
All found with about 2 min on google.
Source:
http://www.redmondpie.com/jailbreak...ipod-touch-using-pwnagetool-4.3-how-to-guide/
Step 1: Download everything required for this jailbreak, here is the list:
Download PwnageTool 4.3 for Mac.
Download iOS 4.3.1 firmware. Put all files to the desktop for quick access.
Step 2: Run PwnageTool application (that you downloaded in Step 1) in Expert mode. Choose your device when this screen appears:
Step 3: When you click the blue next button, a screen will appear asking you to browse for iOS 4.3.1 firmware. Just do it.
Step 4: Now another screen will appear with some options. Just select Build from them and again click the blue forward arrow button.
Step 5: PwnageTool will tell you that it is Building IPSW with the following screen. Let it do its work to create a custom firmware for you.
Step 6: When PwnageTool is done with creating a custom firmware, it will ask you to enter your device in DFU mode. If you dont know how to enter your device in DFU mode, follow these steps:
Press & hold Power and Home buttons for 10 seconds.
Now Release the Power button but do not release the home button for further 10 seconds.
When your iOS device enters the DFU mode, the following blue message appears for confirmation.
Step 7: Now finally you need to restore the custom firmware on your iOS device. Start iTunes and click on the connected iOS device that is located in the sidebar. Now press and hold Shift Key on Windows or press and hold Alt key if your using Mac and click the Restore button ( as shown in the screenshot below).
Clicking on Restore will make iTunes ask you for the custom firmware .ipsw file. Browse for the custom iOS 4.3.1 firmware file that you created in the steps earlier.
Step 8: Your work is done here, iTunes will restore the iOS 4.3.1 firmware on your iOS device and will reboot your device to a jailbroken state.
How-To Unlock iOS 4.3.1:
Ultrasn0w 1.2 is broken on iOS 4.3.1. Wait for the Dev-Team to push new version of Ultrasn0w to unlock your iPhone (compatible basebands: 01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00).
All found with about 2 min on google.
Source:
http://www.redmondpie.com/jailbreak...ipod-touch-using-pwnagetool-4.3-how-to-guide/
Yes. But if you change your etc/hosts file server to Cydia's, you'll be fine. It will verify with Cydia and they will sign the firmware. 
There is a how to on iclarified.
There is a how to on iclarified.
i thought you were on 4.3.1?
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If you're on 4.3.3 just use jailbreakme.com
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www.saurik.com/id/12
That's how you use cydia to sign the ipsw.
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If you're on 4.3.3 just use jailbreakme.com
----------
www.saurik.com/id/12
That's how you use cydia to sign the ipsw.
First you'll need to view hidden files:
1.Launch Terminal, located at /Applications/Utilities/.
2.Type or copy/paste the following commands into the Terminal window. Press the return key after you enter each line of text. Note: There are only two lines of text below, each in its own gray box. Depending on the size of your browsers window, the lines could be wrapping and appearing as more than two lines. Be sure to enter them as single lines.
Then add cydia server to hosts file:
1. Login as Admninistrator
2. Open up Terminal and paste
and press enter
3. Type your password if it prompts
4. When the hosts file opens up in TextEdit add
at the very end of the document
5. Then go to File > Save and close TextEdit and type exit in Terminal
6. You're all done!
After that, Download the 4.3.3 IPSW and restore by pointing the restore to that ipsw.
1.Launch Terminal, located at /Applications/Utilities/.
2.Type or copy/paste the following commands into the Terminal window. Press the return key after you enter each line of text. Note: There are only two lines of text below, each in its own gray box. Depending on the size of your browsers window, the lines could be wrapping and appearing as more than two lines. Be sure to enter them as single lines.
Code:
defaults write com.apple.finder AppleShowAllFiles TRUE
Code:
killall Finder1. Login as Admninistrator
2. Open up Terminal and paste
Code:
sudo /Applications/TextEdit.app/Contents/MacOS/TextEdit /etc/hosts3. Type your password if it prompts
4. When the hosts file opens up in TextEdit add
Code:
74.208.105.171 gs.apple.com5. Then go to File > Save and close TextEdit and type exit in Terminal
6. You're all done!
After that, Download the 4.3.3 IPSW and restore by pointing the restore to that ipsw.