How to Unlock iOS 5.0.1 With UltraSn0w?

How to Unlock iOS 5.0.1 With UltraSn0w?

UltraSn0w 1.2.5 was just released with iOS 5.0.1 support in tow for the iPhone 4 and iPhone 3GS. So, how do you make it work?

Inside, you'll find a brief tutorial that shows you how to verify if you qualify for an unlock, and how to go about unlocking your iPhone with UltraSn0w 1.2.5.

How to Unlock iOS 5.0.1 With UltraSn0w
By Jeff Benjamin, Dec 21, 2011

298 Comments

UltraSn0w 1.2.5 was just released with iOS 5.0.1 support in tow for the iPhone 4 and iPhone 3GS. So, how do you make it work?

Inside, you'll find a brief tutorial that shows you how to verify if you qualify for an unlock, and how to go about unlocking your iPhone with UltraSn0w 1.2.5.

Step 1: Make sure you have a qualifying baseband.

To check this go to Settings > General > About and check the "Modem Firmware" section at the bottom of the page. If you are on an iPhone 4 and the Modem Firmware says 01.59.00, you can unlock. If you are on an iPhone 3GS and your firmware is any of the following: 04.26.08, 05.11.07, 05.12.01, 05.13.04, or 06.15.00 you can unlock.

If your baseband doesn't meet the above requirements, stop here. You are not eligible for unlock. IPhone 4S is currently not unlockable.

Step 2: If you haven't already, upgrade to iOS 5.0.1 and preserve your baseband when doing so.

Step 3: Jailbreak your iPhone 5.0.1.

Step 4: Go to Cydia and search for "UltraSn0w". Install UltraSn0w 1.2.5.

Step 5: Remove your old SIM card and replace with new SIM card e.g. A T-Mobile SIM. You may need to cut your SIM to fit the micro-SIM slot. See the video for more details.

Step 6: Give your iPhone a few seconds, and it should now be on the new network, courtesy of the UltraSn0w 1.2.5 iOS 5.0.1 unlock.

Unless you got an iPhone 4 at launch and you were very careful to preserve it all of this time, it's fairly unlikely that your baseband still qualifies. I know mine doesn't.

Are you eligible for an unlock? Have you unlocked your iOS 5.0.1 installation as of yet? Let us know.

Sammy Deguzman

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