So a day after i updated to 11.1, i started to get black screens very often. Basically my screen won’t turn on after i lock the phone. I still get feedback from my home button and nothing else. I restored my iPhone last night using recovery mode using iTunes and restored with iCloud but that still didn’t fix the issue. This morning it happened 4 or 5 times and i managed to get the screen working by either plugging it to the charger or force restart. Anyone else having this issue? Is there a way to fix it other than restoring the device via iTunes? Because i already did that one. Any help would be highly appreciated!