hi. i'm having this issue on my 7 plus with ios 11.0.3 (and also beta 3 on which i updated today). A few times a day it hangs : when the screen is off (locked) and i try to press any button it only vibrates (on home button) but the screen doesn't come on. The apps in background run ok (music playing etc) but i can only fix it by force restart. In the past week in happened 3-4 times a day. I don't know if it's app related (i always had Waze and Deezer running in background and connected to bluetooth headset) sorry if i've opened a duplicate thread , but i searched and couldn't find any with this issue.