We have already up with a detailed tutorial focusing on how to get your iPhone unlock from the AT&T through their new offer, of unlocking off-contract iPhones. However, we have received the couple of comments and emails from readers whom they have lost their jailbreak status, as in the end of the tutorial users have to restore their iPhones to the latest iOS firmware version, normally on the iOS 5.1, and as we know there is currently no untethered jailbreak exploit available to jailbreak devices over the latest firmware.
Many users may have been not aware of this fact, but losing a jailbreak at this moment is pretty dangerous for the potential jailbreak lovers, as Apple is kept updating its iOS firmware version with new security, and hackers are bound to hack it to bring jailbreak, and therefore, they immediately come up with a solution to fix the Apple’s and AT&T workaround against Jailbreakers. The key member of an iPhone Dev Team has just tweeted a little trick for the users, who are going to get the iPhone 4 / 3GS unlock from AT&T. The workaround of getting factory unlock iPhone on AT&T is pretty simple, and similar to the jailbreaking experience.
To Get Factory Unlock Your iPhone 4 / 3GS:
Step 1: First of all, you have to follow us our earlier described tutorial, but be-careful, as in an end, you have to skip the restoring process of the tutorial, and should continue from this tutorial.
Step 2: You need to have the latest Redsn0w 0.9.10b6 on your machine, download according to your device.
Step 3: Now launch Redsn0w on your machine, and connect your device with machine, simply follow all the steps, but after going through patching the Limera1n exploit on your device, you have to carefully select options to unlock your iPhone without restoring it.
Step 4: After patching limera1n exploit, Redsn0w will give you number of options, and ask you whether to install Cydia or not, and allows you to select different options. In the options list, you have to select the “Deactivate” to unlock your device, and moves ahead to next step.
Image via HTA
Step 5: Once you have done with the Redsn0w deactivate hack on your iPhone, simply eject your SIM from tray and turn off your iPhone.
Step 6: Now, turn on your iPhone and connect it with iTunes and insert any other SIM in your iPhone and try your factory unlocked iPhone.