I know it’s an older model but we had a couple laying around the warehouse. I was able to get one running( flashing blue light). I took it completely apart clean wheel/brush assembly, checked both floating cable ends reinserted and it came to life. Used Wi-Fi app and did some direct driving. Pretty cool except for the filtration just blows fine debris back out. The other one I can’t get it to stop flashing blue. It won’t connect to the robot. Did the same thing as the other no corrosion on the cable ends . It worked one time briefly then I got red flashing checked the brushes wheels and basket motor they all were free. Any advice?