I know there's such a thing as artistic license but this defies credulity!
So Olivia has an evidence bag from her brother Simon's death which occurred **a year ago** takes out his phone and it magically powers on!
How many phones can be unused for a year and then power right back on? !
I'd think that with a program that deals so much with evidence that the writers would have been more careful!
I frequently notice this stuff and lapses or errors in continuity. Kind of interesting.