BIG problem with Vector 3

About 4 days ago I buy vector 3 (ver 3.80) at first it seemed strange to me that when I connected to the phone, the signal was constantly lost and I was asked to scroll the pedal, 1 out of 5 times it can be found, but then the signal is immediately lost and again asked to scroll, then the signal is lost again, I also tried to connect via ANT +, sometimes it writes ( there is no signal) but when the signal appears then the pedals show ~ 500-700 watts for 1-3 seconds, you have to constantly pedal so that the signal does not get lost, sometimes if you stop turning for 2-3 seconds the computer just stops seeing the pedals, they fall asleep and not always immediately on For this, it takes time, I tried reinstalling the application, reconnecting the bluetooth, I also inserted new batteries and greased the contacts with oil, it doesn’t help at all, the signal disappears on the bluetooth and ANT +, sometimes right away, sometimes if you don’t turn 2-3 seconds, I did the calibration, untied and tied it, I also removed the batteries for the night, Nothing of this helped, I doubt that the equipment for 1000 euros should work like that, I also can’t use these pedals in the game Zwift, because the signal always is lost

I demand support to help me,

I am silent about the fact that my Garmin EDGE 1030 computer for 600 euros is constantly buggy and my PC does not see it, help at least with pedals