Vector 3 suddenly dead

While I was on a ride vector 3s stopped working, I tried to remove/add the same batteries didn't work. I changed them with new batteries again didn't work. It seems the garmin 520/fenix 6 pro could connect for a while but didn't work. Using calibrate I could see some numbers changing but again nothing no power, no cadence. I use them only for a few months and also the cleat of my left shoe has a little play. Are vector pedals so bad? The problem is that I can't return them I guess I will have to get replacement and I'm afraid I will have again the same problem.

If I turn the pedals by hand I see the red light turns on every x seconds.  If I connect the pedals using my android phone and BT it can connect to vector 3s and retrieve info .