If a console has not been configured, the system pauses with this value in the three-digit display and then displays instructions for choosing a console on the native display. System initialization and configuration continue after you choose a console.
When the LED is at the 0c31 prompt, it is asking you a question (on both
serial and GUI console):
"Please press 0 to select this console"
or in some cases:
"Please press 1 to select this console"
hope this helps,
Lou