Cisco 5520 Wireless Controller
Start the console session.
Plug in ethernet cable with RS232 DB9-pin adapters to console port of device from PC COM1 port (for laptops use Digitech USB-A adapter as a COM port shown in Device Manager)
Open PuTTY and select "Serial" connection type, change baud rate (Speed) to 115200 and leave other settings as default.
Plug power into device and if a power button exists, turn it on.
Erase configuration from Boot Options.
Press the Esc key when prompted:
Initializing Intel(R) Boot Agent GE v1.5.81 PXE 2.1 Build 092 (WfM 2.0) Press <F2> Setup, <F6> Boot Menu, <F7> Diagnostics, <F8>Cisco IMC Configuration, <F12> Network Boot Bios Version : C220M4.3.0.3c.0.0831170216 Platform ID : C220M4 Processor(s) Intel(R) Xeon(R) CPU E5-2609 v3 @ 1.90GHz Total Memory = 32 GB Effective Memory = 32 GB Memory Operating Speed 1600 Mhz Please wait, preparing to boot.. ....................................... .............................................................. Cisco Bootloader (Version 8.3.15.177) .o88b. d888888b .d8888. .o88b. .d88b. d8P Y8 `88' 88' YP d8P Y8 .8P Y8. 8P 88 `8bo. 8P 88 88 8b 88 `Y8b. 8b 88 88 Y8b d8 .88. db 8D Y8b d8 `8b d8' `Y88P' Y888888P `8888Y' `Y88P' `Y88P' Booting Primary Image... Press <ESC> now for additional boot options...
At the Please enter your choice: prompt type 5 followed by the Enter key:
Boot Options Please choose an option from below: 1. Run primary image (Version 8.10.196.0) (default) 2. Run backup image (Version 8.10.190.0) 3. Change active boot image 4. Manually update images 5. Clear Configuration Please enter your choice: 5 Booting 'Clear Configuration' Detecting hardware . . . . 3 INIT: version 2.88 booting Configuring network interfaces... done. Entering rescue mode /sbin/clear-config starting Clearing System Configuration : /sbin/clear-config done INIT: Sending all processes the TERM signal... Sending all processes the KILL signal... Rebooting... [ 20.480971] Restarting system.
Further output will bring you to the Cisco Wizard Configuration Tool.
When prompted to terminate autoinstall type yes followed by the Enter key twice:
Welcome to the Cisco Wizard Configuration Tool Use the '-' character to backup Would you like to terminate autoinstall? [yes]: yes System Name [Cisco-00fc.ba74.7d00] (31 characters max): AUTO-INSTALL: process terminated -- no configuration loaded Enter Administrative User Name (24 characters max):
Do not continue, just unplug the console cable.
Copy all the output from the session into your records.
Right-click PuTTY's titlebar, from that dropdown menu click on "Copy All to Clipboard"
Open the file of record certifying the deconfiguration of this device and use CTRL V to paste all the output from PuTTY into that file. Formatting the text with a fixed-width font helps it look more readable.
End the session.
Turn off/unplug the device and close PuTTy.