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Good morning, people.

My iPhone 5s start to showing a message "slide to power off", after I update do iOS 10.

I din't drop it. And I do not use a case.


Similar case (no solution): https://www.ifixit.com/Answers/View/231945/How+to+fix+"slide+to+power+off"+screen+that+randomly+shows+up


Anyone have or had this problem?

Thanks.
Is your power button sticking? Someone was complaining about that causing a similar issue yesterday.

https://forums.macrumors.com/threads/iphone-7-issue-sticky-lock-button.1999680/
 
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