Use the nrfutil device pinreset-enable command to enable pin reset on nRF52 Series devices.
Pin reset lets you reset the device by toggling the reset pin. This command writes the UICR configuration needed to enable that behavior. It is intended for nRF52 Series hardware; on other families the operation is not supported and the command returns an error.
After the UICR is updated, the device is reset so the new settings take effect.