My samsung A70 has been giving me problems. After I lock my phone, the phone will remain on without turning off. I have checked the screen time out, and it is set at 15 seconds. However, the screen will still be on for longer than 15 seconds and can stay on for over 30 minutes. The phone is always overheating and this problem is draining my battery. The only time the phone does not have this problem is when it is charging. I have tried all kinds of solutions like restarting the phone or even resetting my settings. Does anyones know what is the problem and the solution to the problem.