I have spare pats on my phone and also looking at my awake time. I did a reboot last night and did use it all night and myawak time is 27mins in 12 hr period. Does that mean that the light on my phone has been on for 27min in the last 12hrs. In other words anytime my screen is black does that mean that it is sleeping? How do I use spare parts to find what was being used for 27mins last night?