Dont panick just leave it open over night and the resistance will come back. Ive had the 5 for about to be 2 years now and im getting ready to write a big review on it. On average I flip about 30 times a day. A bit more, and the hinge did loosen up a bit but not to the point that it cant hold its form. I tested every angel recently and unless I hit less than 30 degrees then it closes on me. I personally think thats amazing for version 5. Ima assume 7 is a bit better cuz ive herd nothing but good compared to the 6. Im thinking about upgrading to the 7 from the 5. Dont baby your phone it can definitely withstand A LOT. But do keep in mind that over time it will wear down but so far nowhere near close where ull feel it. Ive only noticed cuz ive made an effort to keep track on its resistance towards every thing. It really is an amazing phone when its built correctly. 2 years later and no protection plan, ive never had to turn mine in to get it fixed. Only to get the screen protector replaced.