Dell XPS 15 9560 Service Manual page 106

Light Pattern
3,3
3,4
The computer may emit a series of beeps during start-up if the errors or problems
cannot be displayed. The repetitive beep codes help the user troubleshoot problems
with the computer.
Camera status light: Indicates whether the camera is in use.
• Solid white – Camera is in use.
• Off – Camera is not in use.
Caps Lock status light: Indicates whether Caps Lock is enabled or disabled.
• Solid white – Caps Lock enabled.
• Off – Caps Lock disabled.
106
Problem description
Recovery image not found
Recovery image found but invalid