If you're trying to connect to the app, and you can't find the "ECOVACS-xxxx" wifi signal, try these two tips:
1. Turn off your mobile phone's wireless data. This can occasionally interfere with a the Deebot's wifi signal.
2. Place your phone literally on top of the robot.
Once it connects, you can then flip your cell data back on, and then control the robot from anywhere in your home, or anywhere in the world.