If you are interested in knowing about the current situation about the iPhone 4 baseband 4.11.08 and 4.12.01 unlock, then you have come to the right post.
Here, you'll be able to read about all informations about unlocking the iPhone 4 present, and the future of the unlocking scene!
Short-lived SAM Unlock Tool
The first ever iPhone unlocking solution was SAM. It was developed by Loktar Sun, and SAM could unlock every iPhone and the firmware or the baseband of the device didn't matter to the unlocking solution. Many could get the iPhone 4 unlocked on the baseband 4.11.08 and 4.12.01 — However, many couldn't. Then Applenberry's Gevey SIM Ultra S and the R-SIM 4 copied the free SAM unlock and sold it at a high price. Then Apple blocked the loophole through which SAM unlocked the iPhones and Applenberry said that it had copied SAM, and it was found out that R-SIM 4 was also a copy, and everyone was left surprised!
Unlock iOS 5.1.1 Baseband 4.12.01
People who were able to get the iPhone 4 5.1.1 unlock should have kept their unlock activation tickets. There SAM unlock activation ticket allow you to keep your iPhone 4 unlocked. Creating a custom firmware can allow users to go to the iOS 5.1.1 and keep their device unlock and the baseband won't be upgraded. However, the iOS 5.1.1 can only be jailbroken tethered — that's why it's risky!
|Unlock iPhone 4 Baseband 4.12.01|
Unlock iPhone 4 with Rebel Pro Micro SIM Card
It claimed to unlock the iPhone 4 on the basebands 4.11.08 and 4.12.01. However, it was discovered that it was a fake, and it could also have been a copy of the SAM unlock tool.
AT&T Free Unlock — Check your Unlock Eligibility
Your contract time with AT&T needs to be over. Secondly, for those who have purchased from someone else and the customer has paid a beginning termination feeds, in that case your eligible. The most crucial is that you must be active AT&T customer. If you have iPhone purchased from eBay, Amazon or etc., You are in a hopeless situation.
Future Unlock Solutions for iPhone 4 baseband 4.11.08
You should know that currently there's no unlocking solution for the iPhone 4 on 5.1.1 or firmware, which is iOS 5.x.x. People might be working on it — however, the progress seems to be slow.
Update: Factory Unlock iPhone 4 on any firmware and baseband!
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