Today, as we’re sure you’re aware of, the untethered jailbreak for iOS 5.0.1 was released. Tools like RedSn0w and packages like Corona were released to take advantage of pod2g’s untethered exploit.

If you’ve had an iPhone 4 since launch, then it’s entirely possible that you’ve preserved your baseband up until now for unlocking and resale value.

If your primary concern is preserving your baseband for an UltraSn0w unlock, then you’ll be happy to hear that PwnageTool is back, and it packs full iOS 5.0.1 compatibility in tow…

How to Untether Jailbreak and Preserve Your Baseband for Unlock

Step 1: Download and run PwnageTool 5.0.1

Step 2: Select your device (e.g. iPhone 4) and select next.

Step 3: PwnageTool will search for your iOS 5.0.1 firmware. If it doesn’t find the iOS 5.0.1 firmware you can use Expert mode to browse for the specific location of your firmware.

Step 4: Place your device into DFU mode, and PwnageTool will put your device into PwnedDFU mode for custom iTunes restore.

Step 5: Close PwnageTool, open iTunes, hold option and click restore and find your CUSTOM firmware that was placed on your desktop by PwnageTool. Be sure to select your custom firmware or else you will upgrade your baseband.

Step 6: Let iTunes restore your device, and it should be jailbroken with preserved baseband on iOS 5.0.1. Again, this is an untethered jailbreak.

Step 7: You can now download UltraSn0w from Cydia, and if your iPhone meets the baseband requirements, you can unlock your iPhone to use with other carriers. This will also work with the Gevey SIM if your baseband meets the requirements.

For more information on how to unlock your iPhone with UltraSn0w, see our most recent UltraSn0w tutorial.

Have you preserved your baseband up until this point? Let us know in the comments below.

  • Will this work if my baseband is 4.10.01?

    • i want to know the same thing , if it’s safe to preserve 4.10.01 baseband with Pwnage 5.0.1 …

  • Desire’ Clark

    When will there be an updated version of ultrasn0w to unlock the iPhone 4 iOS 5.0.1 baseband 04.11.08 to unlock so that I can use it with tmobile ????

  • I have an Ipod touch 4 that is running on 5.0.1 and I want it to go back to 4.2.1 can some ome please help me

  • i have successfully preserve baseband to update ios 5.0.1 my 3gs with snowbreeze

  • i have successfully preserve baseband to jailbreak and unlock ios 5.0.1 my 3gs with snowbreeze

  • Just wanted to knw if iphone 3gs already has 05.13.04 bb, then ultrasn0w would still install the ipad’s bb 06.15.00 and hurt GPS?

    • Anonymous

      how do i fix error code 1015 on iphone 3g

  • prasad m

    Paji now i am in abu dhabi i have Iphone 4,5.0.1 jailbreak already i want to upgrade to 5.1 what to do Tell me easiest way [email protected] from tamilnadu

  • Nicolas Anderson

    comment of 100 : to unlock your iphone better goto officialimeiunlock com