How do I stop my HTC One M8 from making random calls and self-launching apps?

My son has an HTC One M8. It just started making random calls over and over to the same numbers (the number it calls varies). It is also launching apps all by itself. The last issue is it shutdowns down the music app for no reason. It is a T-Mobile purchased phone if that makes a difference. Any ideas are much appreciated.

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by shanelle99
1 hour ago
Last post by kacie.howe
59 minutes ago
kit Kat 4.4.4
Started by vesta50
Last post by kieran82
4 hours ago
[Q] SETOOLS
Started by tstokes
Last post by pfannerstill.abagail
1 hour ago
Last post by adams.yazmin
59 minutes ago
Last post by igoldner
2 hours ago
Last post by laurine.strosin
3 hours ago
Last post by hegmann.ralph
50 minutes ago