How I can merge my scan databases with two gadgets?

[wagn3r]

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 more than in the tablet). Also, I uploaded my db from phone to this service and try "Export my observations from WIGLE to local DB", but nothing on the map.

[wagn3r]

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