In this video we're going to understand whether is safe or not to Jailbreak iOS 10.1.1 with Yalu Jailbreak Tool Beta. I am making this video because there have been quite a few issues lately with various people bricking either partially or fully their iOS 10.1.1 devices and so they were forced to lose their Jailbreak and go to iOS 10.2. Some have lost their LTE capabilities (Cellular Network), some have lost access to iMessage, FaceTime, Twitter and so on, so is it safe to hurry up and use a Beta that even the creator called "glitchy and extremely unstable"?
In this video we're also covering a fix for the iMessage and FaceTime / Twitter if you have these issues after Jailbreaking iOS 10.1.1 and we also discuss whether is safe or not to enable the Cydia Substrate (a.k.a. Mobile Substrate) that was disabled by default by Luca Todesco on iPhone 7 and iPhone 7 Plus iOS 10.1.1 Jailbreak.
This is a very important video that I recommend you to see, it might save your device.
==Fix for iMessage /FaceTime / Twitter after JB==
chmod 777 /var
chmod 777 /var/mobile
chmod 777 /var/mobile/Library
chmod 777 /var/mobile/Library/Preferences
Write these in MobileTerminal app from Cydia.