Question: Software or hardware problems or both?
1,Proximity sensor not working for on call(screen won’t turn off when call) but auto brightness works.
2, TouchID sometimes works, some not, even fail to set up TouchID. I got it fix by restart the phone or disable Reachability or sometimes have to wait for OS update to make the system respring or something(maybe its a glitch).
3, WiFi and Bluetooth was not completely turn off from control center(I had to go to the main settings to turn it off).
4, Battery issues.
iPhone 6 version 11.1.1
Sorry for my bad England XD