I have Meizu Pro 5 and this problem start yesterday.
I am using the phone or it just left on the desk and when I come to see calls or messge I see that silent mode is turns on.
I deleted all the recentlly apps that I download and it still happen.
I don’t know if this an software issue, because I upgrade the system to 5.1.10 from 5.1.9 and it is still happening.

Did anyone had an problem like this before ?
I don’t know what do to…

Hope someone will help me,
Best Regards,