I believe reporting a phone lost or stolen is the worst idea.
It will remove any connection you may have with the phone as well as any chance to locate it.
At least if the phone is still usable it can be traced.
Once it is blacklisted the thieves will be forced to auction it off on eBay.
I prefer reactivation lock. This way it cannot be flashed or wiped. A brick should I say.
This feature is really important and we should have it for our sprint device.
Sent from my SM-G900P using Tapatalk