I updated my device from 1.16.0 to 1.19.0 (for what???
). The update was successful. But after that, all calibration was completely reset.
It was not possible to manually calibrate the device because all the calibrate points values (voltages and currents) were reset. There were just zeros everywhere.
Fortunately, the device was brought back to life and calibrated using SCPI-commands. First, I recorded all the calibration points for all channels according to VDAC, IDAC, VADC, IADC, then manually calibrated all the channels.
Do not update old devices to 1.19.0. Provide yourself with an activity for a couple of hours (restoring calibration), there will be no further benefit from this