I've had my S6 for a few months now and I've loved the Samsung keyboard and kickstand combo since day 1. I've shared what seems to be the normal frustration with the back cover coming off. I tried cleaning it, I tried pushing harder, nothing worked. I wasn't willing to give up though, there's not another case that offers the same Microsoft Surface style kickstand. Finally I found the solution; silicone. I put a bead of silicone right down the center of the oval of adhesive foam on the cover pushed it onto the S6 and 2 weeks later it hasn't budged. It's been flawless. If I ever need to remove it I'll be able to because silicone never hardens, it's gonna be a pain to get off, but it'll peal right off. It's the best move I've made with the S6. If anyone needs some guidance, let me know.