Switching my phone off
Everytime I turn my phone off it makes a really loud screeching noise
iPhone 5s, iOS 9.2.1
User profile for user:
Jason L
User level:
Community Specialist
Hi Yulaboo,
Welcome to Apple Support Communities.
If I understand correctly, you're hearing an audible tone when turning your iPhone 5s off. An easy way to troubleshoot this issue and rule out a software issue, is to try restoring the device as shown in this article:
Ciao.