Update iPhone 4, 3GS to iOS 6 and Preserve Baseband

How to Update iPhone 4, 3GS to iOS 6 and Preserve Baseband ? Earlier today, we posted that the iPhone Dev-team has released Redsn0w 0.9.15 b1 with many new features. Fortunately, this updated version of redsn0w also supports the preservation of basebands. Unlike previous developer version, you can update your iPhone 3GS and 4 to iOS 6 while preserving basebands, so you can use Ultrasn0w and Gevey Sim to unlock your iPhone.

Update iPhone 4, 3GS to iOS 6 and Preserve Baseband

Before proceeding, please make sure that Ultrasn0w is not updated to support iOS 6. Moreover, Applen’berry also has not tested the Gevey Sim on iOS 6, so you might end up with locked device. But Dev-team will soon release the update to Ultrasn0w to support iOS 6. And you can also use the Ultrasn0w fixer for now.

How to Update iPhone 4, 3GS to iOS 6 and Preserve Baseband :

However, If you want to Update iPhone 4, 3GS to iOS 6 and Preserve Baseband, follow the instructions below.

Step 1: Download the Redsn0w from Links [Posted Here]. Update

Update: (Nov 1) Version 0.9.15b3 fixes the redsn0w “error 2601” and fixes iTunes error 14

Step 2: Download iOS 6 for your iPhone 3Gs and 4 from links here.

Step 3: After downloading all the links,

  • Windows users: Extract the Redsn0w and “Run as Administrator
  • Mac Users: Right Click and open the “Redsn0w

Update iPhone 4, 3GS to iOS 6 and Preserve Baseband

Step 4: After opening the Redsn0w, Click on “Extras

Step 5: Select the last option “ Even More

Step 6: Now, Select the top most option, which is “Restore

Step 7: Click on “IPSW” and browse for already downloaded iOS 6.

Step 8: Redsn0w will give you a warning about “Modifying IPSW” which is basically the preservation of basebands. Click on “YES”

Step 9: Connect your iPhone with computer because “PWNED DFU mode” is required to create custom firmware file.

Step 10: After connecting your iPhone, Turn it off and click on “Next”

Step 11: Follow the on screen instructions carefully to put your iPhone in DFU mode.

Step 12: Once you have successfully entered in DFU Mode, Redsn0w will create the custom firmware file with preserved basebands.

Step 13: After the completion of Process, Redsn0w will update you.

That’s it! You can now restore your iPhone using custom firmware file from iTunes.

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