How to Unlock iPhone 3.1.3
This guide and tutorial will show you how to unlock iPhone 3.1.3 using UltraSn0w or BlackSn0w, depending on your iPhone baseband.
The first step is to jailbreak your iPhone 3.1.3, either with RedSn0w or with PwnageTool. Note that PwnageTool is the preferred method as it helps preserve the baseband.
Now we have 2 options for unlocking, and it all depends on your baseband model:
- If your baseband is still at 04.26.08, then you may use UltraSn0w.
- If your baseband is at 05.11.07, you may use BlackSn0w.
- If your baseband is at 05.12.01, you cannot unlock at this time. No one knows if we’ll ever be able to unlock this baseband.
To find out what your baseband is, go to Settings > General > About > Modem Firmware.
How to unlock iPhone 3.1.3 with UltraSn0w
- Launch Cydia.
- Add the following source to Cydia repo666.ultrasn0w.com (note there is a “0? in sn0w, not an “o”).
- After installing this source in Cydia, search for “ultraSn0w”.
- Install UltraSn0w and reboot your iPhone.
How to unlock iPhone 3.1.3 with BlackSn0w
- Launch Cydia.
- Add the following source: http://blackra1n.com.
- After installing this source in Cydia, search for “BlackSn0w”.
- Install BlackSn0w and reboot your iPhone.
Your iPhone should now be unlocked. If you have questions or comments on how to unlock iPhone firmware 3.1.3, please leave a comment.
“How to Unlock iPhone 3.1.3” is an article by the iPhone Download Blog sponsored by the iPhone Store. Feel free to leave a comment or discuss this topic in the forum. For the latest iPhone info, don’t forget to follow me on Twitter.
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