@Wayne-TP Actually something helped although I couldn't verify it yet. Placed it into dark place didn't helped but after I covered it with blanket it worked. It's a silly solution but it seems that...

@Niki4 Exactly the same.... app pops up with "Robot Vacuum not responding. Please check." and nothing happens. Firmware vers 1.2.1 Build 240103 Rel.150630. HW vers. 1.0 Model: RV30 Plus Any news...