Changing The Audio Settings; Wlan Cards; Secure Boot Screen Options; Hard Drive Options - Dell Latitude 5280 Owner's Manual

Changing the audio settings

1 Tap or touch the Search the web and Windows and type Dell Audio.
2 Start the Dell Audio utility from the left pane.

WLAN cards

This laptop supports the Intel 8265 with and without Bluetooth or Qualcomm 1820 with Bluetooth card
NOTE: Qualcomm xxxxxx (for example: QCA61x4A) is a product of Qualcomm Technologies, Inc

Secure Boot screen options

Option Description
Secure Boot Enable This option enables or disables the Secure Boot feature.
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Default setting: Enabled.
Expert Key Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable Custom
Management Mode option is disabled by default. The options are:
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If you enable the Custom Mode, the relevant options for PK, KEK, db, and dbx appear. The options are:
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Hard drive options

This laptop supports HDD, M.2 SATA SSD, and M.2 PVIe NVMe.
Disabled
Enabled
PK
KEK
db
dbx
Save to File—Saves the key to a user-selected file
Replace from File—Replaces the current key with a key from a user-selected file
Append from File—Adds a key to the current database from a user-selected file
Delete—Deletes the selected key
Reset All Keys—Resets to default setting
Delete All Keys—Deletes all the keys
NOTE: If you disable the Custom Mode, all the changes made will be erased and the keys will restore to
default settings.
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