This latest jailbreak was made possible by a great exploitation discovery made by Ian Beer from Google Zero Project. It results in people like Jonathan Levin being able to produce this jailbreak and release it to the public. So, let's dive in straightforward and see how you can use it on your device. Before you can even think of going through the tutorial below and jailbreaking, there are a few things you need to have. You can find the list below for reference:
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- Supported devices and firmware: All 64-bit devices, including iPhone X and iPhone 8/8 Plus, running iOS 11.0 through iOS 11.1.2.
- LiberiOS jailbreak which you can get from our original announcement post here.
- Saurik’s Cydia Impactor tool, which is needed to get the IPA file onto your device, and can be downloaded from cydiaimpactor.com
- The latest version of Apple’s iTunes software.
- A computer running macOS or Windows.
- A free or full developer ID, which can be obtained from developer.apple.com using an existing or new Apple account.
As mentioned in our original announcement post, Cydia and Cydia Substrate are not working properly. Wait for Saurik to update it. Until now, you can use this jailbreak for root and SSH access.
Step 1: Connect your iOS 11.1.x 64-bit device to your computer using Lightning cable. Make sure you go through the full backup process using the latest version of iTunes in case something goes wrong during the jailbreak process. This way you can save your data no matter what.
Step 2: Upon completion, launch the Cydia Impactor on your computer and drag the LiberiOS IPAan jiranbreak file to its UI. Enter your Apple ID credentials when prompted and wait for Cydia Impactor to sideload the signed application on the connected device. If you are new to Cydia Impactor, we would recommend to check out a separate detailed guide on how to use it to override IPA files here: Sideload iOS Apps In Windows, Mac With Cydia Impactor Without Jailbreak, Here.
Step 3: Once the application is complete, launch Settings> General> Device Management & Profile (on some iOS versions, it's possible only General> Device Management) and tap the profile associated with the jailbreak app. Make sure you trust this to allow the LiberiOS jailbreak application to launch.
Step 4: Now head back to the Home screen where the LiberiOS app is installed and launch it. Tap the Do It button in the center of the app, sit back, and wait for it to do its thing.
Step 5: After a while you will get a screen that looks like below, indicating that jailbreak has been successful.
That's it. Your device should now be successfully jailed!
Now because this jailbreak is semi-untethered, you have to put your device into jailbreak mode after every reboot. To do this, just follow the instructions in step 4 through step 5 from above to enter your device in jailbreak mode.
After the jailbreak app expires after 7 days, you must resign and restore it, and to do so, you only need to follow the instructions given in step 2 to step 5 above.
Enjoy jailbreak! Happy holidays!
source : Redmond Pie