User Manual

AirWorks AWK-3131A Supporting Information
B-2
Firmware Recovery
When the LEDs of FAULT, Signal Strength and WLAN all light up simultaneously and blink at one-second
interval, it means the system booting has failed. It may result from some wrong operation or uncontrollable
issues, such as an unexpected shutdown during firmware update. The AWK-3131A is designed to help
administrators recover such damage and resume system operation rapidly. You can refer to the following
instructions to recover the firmware:
Connect to the AWK-3131A’s ES-232 console with 115200bps and N-8-1. You will see the following message
shown on the terminal emulator every one second.
Press Ctrl - C and the following message will appear.
Enter 2 to change the network setting. Specify where the AWK-3131A’s firmware file on the TFTP server and
press y to write the settings into flash memory.
AWK-3131A restarts, and the “Press Ctrl-C to enter Firmware Recovery Process…” message will reappear.
Press Ctrl-C to enter the menu and select 1 to start the firmware upgrade process.