Firmware upgrade Dell XPS 13 Ubuntu

sudo su fwupdmgr refresh fwupdmgr get-updates fwupdmgr update -v   or download the firmware update from dell .exe file and put into /boot/efi reboot press F12 ans choose firmare upgrade root@ubuntu:/boot/efi# ls EFI XPS_9370_1.5.1.exe  

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