Only few hours ago I wrote a guide on how to unlock iOS 6.1 for all iPhone users who are looking for it. And now you can find several solutions you could possibly use to be able to unlock 04.12.05 baseband iOS 6.1 and iOS 6.1.2. I will refer to each and you'll learn if it can function or otherwise don't upgrade your device. Also I have to inform you that beginning from last Saturday (February 26) it became illegal to unlock iPhone. but this will affect those who bought iPhone after this date and only in the U.S.A. All others may safely use any unlocking method listed here.

Unlock 04.12.05 Using Gevey SIM

You might hear about Gevey SIM method but you can't unlock iPhone 4 baseband 04.12.05 with Gevey tool. Right now there have been no new information from Applenberry that is producer of SIM unlock. Unfortunately, you can't work with the Gevey SIM. Happily, there is another providers that may really assist you to unlock 04.12.05 iPhone 4 baseband. They use factory unlock.

Unlock 04.12.05 With SAM Tool

This is a free tool. However it is possible to apply SAM software unlock only when Activation tickets have been preserved prior to the Apple company shut down this exploit. For those who have no tickets you'll be unable to unlock iOS 6.1 baseband 04.12.05 using SAM app. Note: If you have tickets, the complete tutorial guide on how to use SAM on iOS 6.1 you will see later.

How to Unlock Baseband 04.12.05 with IMEI

IMEI is the special # all iPhones have. Knowing this specific # allows you to quickly unlock iPhone 4. This digits is the identification of your iPhone (locked/unlocked and to what carrier locked, serial, model, color, etc). If you don't know to what mobile operator your iPhone is locked you can use iPhone network checker to find it out. It is now highly regarded to unlock 04.12.05 baseband iOS 6.1 on iPhone 4 using IMEI tool. Firstly, you protect your warranty. Next, it is possible to upgrade to any iOS version again preserving unlock. Finally, it will be possible to enjoy any Sim from the mobile network provider around the world. Additionally, this unlocking is permanent. So let's see what service are the cheapest and the best:

• If your iPhone is locked to AT&T network try this service to unlock iPhone 4 baseband.
• If your iPhone is locked to any other mobile operator - go here and find your country and network.

Well, this is it. No need to be worry if you have accidentally updated your iPhone 4 to iOs 6.1 and got 04.12.05 baseband because only IMEI unlock method will help you to free iPhone once and forever.