Just bought an E4. Fot it all connected to wifi and Mi Home app. Started it from the dock in living room and it re docked after cleaning 3/4 of room and said cleaning completed. How doni ger it to clean and map the rest of the first floor? Should i have started cleaning in the middlemof the room? Instructions are poor discussing where to actually start up the device and have no idea how to split the cleaning onto different rooms soni can just clean one room if needed. Help please