Press and release the Attention (ATTN) button near the bottom of the adapter front panel.
The Attention LED near the button will blink for approximately
five seconds, indicating that the adapter is being prepared for
removal.
Note - When pressing the Attention button, press the button
straight in, and upon release, ensure that the button has not become
wedged beneath the faceplate. If the Attention button remains depressed,
or is wedged beneath the faceplate, press the button again to release
it, and then start this procedure again.