What do the different lights and their colors indicate on the keyboard of my ProBook?
The LED indicator functions are as follows: Num lock light is On if num lock is active, Caps Lock light is On when caps lock is enabled, Wireless Light indicates wireless devices are on (white) or off (amber), Mute light shows sound is on (white) and muted (amber) (page 15).
From the official HP Probook 650 G1 Notebook PC manual, page 15
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