So I've only had this phone for a month and recently the screen started glitching whenever I was putting it in flex mode. (Freezing, lots of lines). At this point I was already on my way to Samsung support but then suddenly the screen went black after a few usues.and I can't do anything. Everything else works, I can still receive calls etc but I can't use it. I've booked it in for repair but I've seen a lot of people in YouTube and Reddit saying they had the same issue after the last update. Seems like a hinge issue. It's a bit disappointing because it is brand new and I've been really careful. Anyone has had the issue recently? I'm hoping they won't charge me for repair (even though it's obviously still under warranty).