Maintenance Screen Options; System Log Screen Options; Updating The Bios; Updating The Bios In Windows - Dell Precision 3520 Owner's Manual

Option Description
All the options are enabled by default.
Wireless Device Allows you to enable or disable the internal wireless devices.
Enable
● WWAN/GPS
● WLAN/WiGig
● Bluetooth
All the options are enabled by default.

Maintenance screen options

Option Description
Service Tag Displays the Service Tag of your computer.
Asset Tag Allows you to create a system asset tag if an asset tag is not already set. This option is not set by default.
BIOS Downgrade This controls flashing of the system firmware to previous revisions.
● Allows BIOS Downgrade (enabled by default)
Data Wipe This field allows users to erase the data securely from all internal storage devices. The following is list of
devices affected:
● Internal SATA HDD/SSD
● Internal M.2 SATA SDD
● Internal M.2 PCIe SSD
● Internal eMMC
BIOS Recovery This field allows you to recover from certain corrupted BIOS conditions from a recover file on the user
primary hard drive or an external USB key.
● BIOS Recovery from Hard Drive (enabled by default)
● BIOS Auto-Recovery
● Always perform Integrity Check

System Log screen options

Option Description
BIOS Events Allows you to view and clear the System Setup (BIOS) POST events.
Thermal Events Allows you to view and clear the System Setup (Thermal) events.
Power Events Allows you to view and clear the System Setup (Power) events.

Updating the BIOS

Updating the BIOS in Windows

CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it
will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the
system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an
unnecessary operating system re-install. For more information on this subject, see Knowledge Article:
www.dell.com/support/article/sln153694
NOTE: For WLAN and WiGig enable or disable controls are tied together and they cannot be enabled
or disabled independently.
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BIOS setup 93