How to do digital airspeed sensor calibration

hi am using pixhawk 4 v5
when am using airspeed sensor .the dose not showing any of data and at the same time when am arming am get a airspeed error .
please any body help to me

Hi, I also went through some airspeed sensor issues and had to work my way through some unsoldered pins on the sensor to the board of the analog airspeed sensor I am using. I am using the Matek Systems Analog Airspeed Sensor ASPD-7002 plugged into the RSSI port as per instructions from the Matek website.

Your post is missing details, so someone can help, what is the type of airspeed sensor, how did you connect it and what are your Arduplane settings to configure it.