Before we tell you how to jailbreak iOS 7.1.2 Windows device by Apple, you should learn more about the programs that are available for untethering iPhone and iPad these days. Evasi0n jailbreak sadly doesn’t support iOS 7.1 and up firmwares yet. There is Chinese tool called Pangu and the exploits discovered by GTISC students Tielei Wang and Yeongjin Jang.
GTISC stands for Georgia Tech Information Security Center. These guys managed to create and demonstrate their iOS 7.1.1 jailbreak video for iPhone 5S and one of them, Jang, noted on his Twitter account that the same program works on iOS 7.1.2 platform as well.There is no GTISC instruction to jailbreak iOS 7.1.2 iPhone because these researched managed to tether their device but haven’t released their discovery yet. In other words, we can explain how to jailbreak iOS 7.1.2 with GTISC in theory but you can’t do this on your iPhone 5, 5S, 5c, 4S because the program is not available for download. No one can tell if it is ever going to be officially launched. Here is how the new tool should jailbreak 7.1.2 iPhone on Windows if you had this program: Step 1. Connect your iPhone to your Windows PC. There is no guide for Mac jailbreak with GTISC jailbreak but we expect news soon. Step 2. Launch the program [it can’t be downloaded by you yet, but it might happen so that GTISC present it to users after testing] and run jailbreak. Step 3. Once you are jailbroken, you have to run jailbreak iOS 7.1.2 recovery app each time you reboot.
You can watch this YouTube video published by @blue9057 where he demonstrates the jailbreak in work for iOS 7.1.1 iPhone 5S which also supports 7.1.2 version. You can watch the video here: https://www.youtube.com/watch?v=EiYxYB_OcXQ If you need to jailbreak iOS 7.1.2 iPhone right now, you can use Pangu tool which was released for public use, is free to run and comes with numerous fixes for both Windows and Mac. You can download this program at the Pangu jailbreak official site.