@INTOXIC Pangu bug hit me again and I lost my jailbreak for a bit tonight, so I made a video tutorial of how to get the jailbreak to work.. The reboot with lock/sleep and power buttons combined with unplugging charging cable after hitting the jailbreak button solved it pretty quick for me.
If you're still having issues, give this thread a good read and watch the video. Hopefully it will work for you.
I didn't use a computer or Impactor, I just went to this website and used Chinese Pangu tool installed right from Safari.
j.25pp.com/ota_tutorial.html
For that version of tool, it won't work after powering off device; so do that step first if you try the app downloaded right from Safari. (You can try to jailbreak with it multiple times because it just resprings whether it's successful or not. It worked for me first try after doing the reboot with the power and volume buttons thoz
If you try this version of Pangu tool you go to link, click "open in appstore", and when you open Pangu app make sure you say "Yes" to notifications. Also remember to change date to May 15, 2015 when installing this Pangu app from Safari, (changing it to normal to trust profile, then changing date to May 15, 2015 to open and use the app).
If ya use this Chinese version, click the box underneath the circle to install Cydia, since for you it's a first time install now basicallly. If you see a message about low memory or Cydia being installed just leave it until it resprings. Then hopefully you'll be jailbroken and have Cydia again.
Crossing my fingers for you. ✌️️