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Update iPhone to iOS 6.0.1 Preserving Baseband for Unlock

update to ios 6.0.1 preserve baseband

When you unlock your iPhone using Gevey SIM or Ultrasn0w, the most important thing is baseband. And if you want to perform iPhone  update to iOS 6.0.1 you have to preserve baseband and continue to enjoy unlock.

If you really want to use iOS 6.0.1 on your iPhone you have to know about the risk. If you are waiting for untethered jailbreak for iOS 6 you better don’t update to iOS 6.0.1 because it is unknown if there will be untethered jailbreak for iOS 6.0.1 or higher version in the future.

download redsn0w 0.9.15b3

Baseband preservation is a very important thing, if you try to update your iPhone in iTunes or over-the-air your baseband will be updated too and you will not have Ultrasn0w or Gevey SIM support. So follow my guide below and I will help you successfully preserve baseband.

In case you have updated your gadget to the newer iOS 6.0.1 and lost unlock, don’t worry because you can use this link to see existing iOS 6.0.1 unlocking methods.

How to Update to iOS 6.0.1 Preserving Old Baseband

Step 1. The very first thing that you have to do is to download Redsn0w 0.9.15b3 on your Mac or PC.

Step 2. Now you need to download iOS 6.0.1 IPSW file for your iPhone model.

Step 3. Unzip Redsn0w tool and run it as Administrator on Windows or Ctrl+click Redsn0w and select open on Mac OS X Mountain Lion.

Step 4. After Redsn0w is up and running go to Extras – Even More – Restore section.

update to ios 6.0.1 preserve baseband

Step 5. Now click IPSW button and select iOS 6.0.1 firmware on your computer. Click Yes if you really want to preserve baseband.

Step 6. Connect iPhone to the computer using USB and click OK and prepare to enter DFU mode. Just follow on-screen instructions and remember that you can always click Back and try again.

Step 7. When your iPhone will be putted in DFU Redsn0w will exploit your gadget with Limera1n and begin update to iOS 6.0.1 preserving baseband. From this moment don’t interrupt the process.

When you finish you can use latest Ultrasn0w fixer for iOS 6.0.1 to unlock iPhone 3GS or iPhone 4. Enjoy.

  1. Gabe November 13, 2012 at 20:37

    This does not work on 3GS at least for me it doesn't . Redsn0w 0.9.15b3 keeps giving error message that it does not recognize IPSW of ios 6.0.1

    • Ndrey November 14, 2012 at 04:55

      try to point to iOS 6 IPSW in Redsn0w

    • kurt November 14, 2012 at 20:35

      You can put your phone in DFU mode and then click "yes" and Redsn0w will install the new ISPW and it will then tell you that you will either have to jailbreak or use the "recovery fix" option. I did this but I got a "missing keys.plist" error and my phone was stuck in recovery mode. I had to reinstall the previous IPSW to get out of it… In short DON'T DO IT!

  2. doy November 14, 2012 at 09:14

    is this work for 3gs old bootrom?

  3. mcl November 28, 2012 at 22:36

    Tried this and my 3gs is now stuck on recovery. Came from 5.1.1 bb 05.13.04

    What do i do?