After clear %wiglepath% and import from WIGLE to local database, I have over 1800 new point, but not see any on map.

I have two gadgets - phone (android) and tablet (android). I use them alternately, today I scan on the phone, and tomorrow on the tablet. I want merge databases, how I can do it? Now I copy wiglewifi.sqlite from my phone and put it in tablet. But i cannot see results on map (database in the phone ...