If you are tired of downloading and install yalu102/mach_portal utility every week (after 7 days) to sign it, then good news for you.
Download Order 66 substrate fix for Cydia Substrate. It will re-install rocketbootstrap and Anemone on iPhone 7/7 Plus running on Yalu102/mach_Portal iOS 10.3 jailbreak. Phantom for Snapchat issues will also get resolved.
Earlier, Saurik released Cydia Extender utility that allow users to automatically re-sign the sideloaded apps. However, the issue with Cydia Extender is it require paid Apple developer account.
Saurik updated Cydia Impactor to version 0.9.39 to fix http-win.cpp:158 error. Though that error was fixed, but now users are reporting some other issues.
Earlier, we covered about a new tool called Cydia Extender. It was just released by Saurik to solve the 7 days singing problem with sideloaded apps. However, it failed to acheive its objective since it required paid Apple developer account to work.