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Jailbreak Verizon iPhone 4 On iOS 4.2.7 Untethered Using Sn0wbreeze 2.6.1 [Guide]




Release Notes:
sn0wbreeze 2.6.1: Verizon love!
Well, after i0n1c released his untether exploit for 4.3.1, Apple shortly pushed out 4.3.2 AND 4.2.7. i0n1c’s payload was ported over to 4.3.2 in a short period of time but not 4.2.7. This made Verizon Users very frustrated.
I originally ordered a Verizon iPhone 4 for my upcoming SHSH blobs dumper. Then I + many others on twitter realized that an untether was not available for 4.2.7. Over the past few weeks, I’ve been sick and didn’t do much, but today I was finally able to get the strength to work on this Verizon untether. Since i0n1c’s payload is not easily reversible, I went to previous exploits.
After trying, pod2g’s + posixninja’s kernel exploit for 4.2.x is STILL in 4.2.7! After some more work, I managed to get this thing untethered!
So, this new release includes that new payload to untether + jailbreak 4.2.7.


Wondering how to jailbreak iOS 4.2.7 untethered?
Well, instructions for jailbreaking iOS 4.2.7 untethered using this new version of Sn0wbreeze are exactly similar to the instructions for iOS 4.3.2 (for GSM iPhone 4).



Step 1: First, download all the required tools and files to your Windows desktop:



Verizon iPhone 4 vs AT&T iPhone 4
  • Download iOS 4.2.7 for Verizon iPhone 4 
  • Download Sn0wbreeze 2.6.1 (for Windows users) 
  • Download Redsn0w 0.9.6rc14 (for Mac users)
  • Download iTunes 10.2.2 for Windows and Mac



Step 2: Start Sn0wbreeze, click the next “blue” colored arrow to proceed.


Step 3: Select the required firmware .ipsw file for your iOS device by clicking on the “Browse” button.


Step 4: Sn0wbreeze will now identify the selected IPSW file. Once done, click the next “blue” colored arrow to proceed.


Step 5: Now select the “Expert Mode”, followed by “Build IPSW” option to start creating your custom firmware. (Since building custom firmware may take some time, you can optionally play Pac-Man game to kill some time.)


Step 6: Sn0wbreeze will greet you with the following “Done!” message when the custom firmware has been successfully created.


Step 7: Now follow the onscreen steps to enter DFU mode using Sn0wbreeze:

  • Hold Power and Home Button for 10 seconds
  • Now release the Power button but continue holding the Home button for 10 more seconds
  • You device should now be in DFU mode
If you have followed the steps correctly, you will get the following message from Snw0breeze (iREB).


Step 8: Start iTunes, click on your iOS device icon from the sidebar in iTunes. Now press and hold Left “Shift” button on the keyboard and then click on “Restore” (Not “Update” or “Check for Update”) button in iTunes and then release this button.


This will make iTunes prompt you to select the location for your custom firmware 4.3.2 file. Select the required custom .ipsw file that you created above, and click on “Open”.



Step 9: Now sit back and enjoy as iTunes does the rest for you. This will involve a series of automated steps. Be patient at this stage and don’t do anything silly. Just wait while iTunes installs the new firmware 4.3.2 on your iOS device. Your iOS device screen at this point will be showing a progress bar indicating installation progress. After the installation is done, your iOS device will be jailbroken on iOS 4.3.2.






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