Dell regularly releases BIOS updates for the XPS 13 9365 to address:
⚡ If your XPS 13 won't boot after a failed update, Dell has a "BIOS Recovery" feature. Hold Ctrl + Esc while plugging in the AC adapter to trigger the recovery menu. To help you get the right version, Dell Xps 13 9365 Bios Update
Never update on battery power alone.