As an FYI, here's info about my bios version:
alexberry:~/ $ sudo dmidecode -t bios -q
[9:04:26]
BIOS Information
Vendor: Dell Inc.
Version: 1.5.1
Release Date: 08/09/2018
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 16 MB
Characteristics:
PCI is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
3.5"/2.88 MB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
ACPI is supported
USB legacy is supported
Smart battery is supported
BIOS boot specification is supported
Function key-initiated network boot is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 1.5
BIOS Language Information
Language Description Format: Long
Installable Languages: 2
en|US|iso8859-1
<BAD INDEX>
Currently Installed Language: en|US|iso8859-1
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https://bugs.launchpad.net/bugs/1799988
Title:
Missing wifi and bluetooth after sleep on XPS 9370
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