S10 series should have under screen proximity sensor, so there is no way for you to see it unless it lights up during function, it's white flashing LED https:/

S10 series should have under screen proximity sensor, so there is no way for you to see it unless it lights up during function, it's white flashing LED https://nasilemaktech.com/samsung-galaxy-s10-series-proximity-sensor/ https://nasilemaktech.com/samsung-galaxy-s10-series-proximit... are you using samsung phone app or 3rd party app? see my other comment with links how to resolve it