iPhone users with the latest mobile firmware version installed can now unlock their device using Ultrasn0w for iOS 6.1. It has become popular to unlock smartphones and change SIM cards depending on the country you are going to or price packages offered by different carriers. You can also unlock iOS 6.1 using SAM tool if you have Activation tickets. I hope you will find this article useful, as this guide has been created to help owners of iPhone 3GS and iPhone 4 to perform Ultrasn0w unlock for iOS 6.1 gadgets. The official Ultrasn0w, according to MuscleNerd, supports the newest firmware. You just have to make sure that you have an eligible smartphone and baseband in order to successfully use Ultrasn0w 1.2.8. This unlock is more easier that unlock iOS 6.1 with ultrasn0w fixer because here you will need to install only one official evad3rs app. Important Notice You can download and install Ultrasn0w 1.2.8 unlock for iOS 6.1 on Cydia. You must have one of the following iPhones and basebands: iPhone 3G / 3GS on baseband 05.12.01, 04.26.08, 05.13.04, 05.11.07, 06.15.00; iPhone 4 on baseband 01.59.00. If you are not sure which baseband you have, go to Settings – General – About and select Modem Firmware. Before you start the process of unlock, you should update to iOS 6.1 and preserve baseband using Sn0wbreeze. You should also firstly jailbreak your smartphone [here is instructions on how to jailbreak iPhone with iOS 6.1 via Evasi0n] and unlock afterwards.

Unlock iOS 6.1 Using Ultrasn0w 1.2.8 Update

Step 1. Take the SIM card out of your smartphone. Download and install Ultrasn0w for iOS 6.1 by going to Cydia – Search and typing Ultrasn0w. Step 2. Wail till Cydia installs Ultrasn0w 1.2.8 unlock on your iPhone 3G, 3GS or 4. Step 3. Press Restart Springboard. Step 4. It is time to insert any SIM and your handset will be connected to the network you have chosen. You have successfully performed Ultrasn0w unlock for iOS 6.1 and you can now make cheaper phone calls thanks to the iPhone Dev Team’s program. Feel free to ask questions in the comments form below. Also if your iPhone is locked to AT&T network and you are tired of messing with this hacks and baseband preservation go here and order unlock only for $ 9.99!