Samsung S10e, Android security patch level=June 1, 2019, Android version 9. Want to use S10e as mobile hotspot, so Data Saver=Off, Wi-Fi=Off, Mobile data=On, Mobile Hotspot=On. Want to connect laptop to S10e as hotspot. Laptop asks for network security key. Have never configured Mobile Hotspot with network security key. Where can I find network security key on S10e to type in to laptop?