Download the update bios file (*.exe) from the Dell support site. Save it to /boot/efi Reboot the machine Push F12 Choose Bios upgrade. source https://www.dell.com/community/Linux-Developer-Systems/Update-bios-in-DELL-XPS-9360-laptop-running-ubuntu/m-p/6029222#M8388
How to Update BIOS of Dell Inspiron with Linux Debian
