Dell Latitude 5580 - Changing the Audio Settings; WLAN Cards; Secure Boot Screen Options

GUID-A9FE3EC0-9C55-4A35-87CD-46F10BC4D3EE
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.
GUID-D563F14E-0A86-4098-9BD0-2AE3D8974994
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
GUID-AE5C56D6-6BFC-4122-B8F5-7949DECCE094
Secure Boot screen options
Option Description
Secure Boot Enable This option enables or disables the Secure Boot feature.
• Disabled
• Enabled
Default setting: Enabled.
Expert Key
Managemen
t
Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable Custom
Mode option is disabled by default. The options are:
• PK
• KEK
• db
• dbx
If you enable the
Custom Mode, the relevant options for PK, KEK, db, and dbx appear. The options are:
• Save to File
—Saves the key to a user-selected le
• Replace from File
—Replaces the current key with a key from a user-selected le
• Append from File
—Adds a key to the current database from a user-selected le
• 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.
68 Technology and components
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