Some people must have experienced this issue on their phone, dialing a number and your phone reboots or switches off. After browsing online for solutions i came up with nothing online. But i discovered something today, when you download an app that has a dialing pad e. g truecaller app the issue of rebooting does not occur when the dialing pad of truecaller is used. If the issue persist after following the above instructions then a phone technician should be solicited. This should be shared until those who need it come across it.