Not sure what is wrong with my iP6 which is jailbroken on iOS 8.4 but settings will not open. When I tap on the icon it tries to open it but then just goes back to the home screen. It will open when I'm in safe mode. I have tried doing a clean with iCleaner and I haven't installed any new tweaks and the last couple that were updated I deleted them and ran iCleaner again but still no joy. Any help would be welcome as I would rather not have to use Cydia Impactor and then start all over again.