My pico is back live working perfect, thanks pico team.

Herewith the Help About details and now software looks on start-up, no probes connected yet.

I bought an Pico 4223, used. I am not able to measure a simple 4V phone battery, I can very easy measure it with another scope, only with Pico it does not work. I've downloaded the Pico software, did a zero calibration with x1 probe, set DC, +/5V range, both A and B channels show more or less the sa...