Hello, I have some problems on my iPhone 7. So, I have installed DFU iOS 11.2.1 and after that I did all my regular updates over iTunes. So DFU is not option for me, it's really annoying thing to use DFU. Also I've setup-up my iPhone as new on 03.03.2018 while it was on iOS 11.2.6 My iPhone 7 is now on iOS 11.3 (iTunes update), and the problems are these: - When unlocking, the animation is slow. Sometimes the unlock animation skips, and I get just direct to icons. - My camera hangs for 1-2 sec after opening the Camera app. - After opening the Music app, I get message "We run into an problem", then i click OK and everything works. My battery health is 100%, so it's not an aged phone.