Just few time ago Coolstar has publish that he plans to released jailbreak tool by Electra jailbreak iPhone, iPad & iPod touch running iOS 11.3.1, important thing is this support for the iPhone X.
When we jailbreak our iPhone, iPad and iPod running on iOS 11 – iOS 11.1.2, we have to do very important thing like as save iOS 11.3.1 blobs also they can restore to iOS 11.3.1 even after stops singning iOS 11.3.1 firmware using the this tool by Apple, please wait few time you can see very soon Coolstar developer released for all iOS users.
Step by Step guide How to save iOS 11.3.1 SHSH blobs for iDevice
Electra developer have advised jailbreker who need to update to iOS 11.3.1 via the OTA method by installing the update via the setting app to install iOS 11.3.1 using iTunes now below you can use important guide how update with.
Connect your iOS device to the Computer.
Open iTunes and click on Summary in the left hand.
Click the aria of the serial number field in the summary, till see the ECID.
Copy it the clipboard.
Open now this link https://tsssaver.1conan.com.
Already copied ECID file place it.
Select your device as iPhone, iPad or iPod.
After found your iOS device click Submit button.