what command did "nRF Connect" do, after I click "YES" ???
Im stranded in this example : “ble_app_alert_notification”
I don't know how to use "nRF Connect"
when I use "nRF Connect" , after I choose the Serial port, the "program required firmware" tips always pop up, after I click "YES", board LED all off ,and never on again, until I reflash them with other HEX files