Cisco AIR-RM1252G-A-K9

  1. Start a TFTP server and the console session.

    Download the boot image c1250-k9w7-tar.default to the "Base Directory" set in a running Tftp64 server (Ensure the PC firewall allows incoming and outgoing connections to the TFTP server on port 69).
    Plug in a serial cable to "CONSOLE" port of the access point from PC COM1 port
    Open PuTTY and select "Serial" connection type, leave baud rate (Speed) and other settings as default.
    Plug in an ethernet cable into an ethernet port of a PC from either (a) the ethernet port of the access point, or (b) the "To Switch" port of a running power injector device.
    Manually set the ethernet PC interface IP to the same subnet as the default IP of the Access Point which is 10.0.0.1 and ensure the same IP is selected in the TFTP "Server interfaces" dropdown:
    PC ethernet interface IP settings Tftp settings

  2. Power on the access point.

    Press and hold down the "Mode" button:
    Cisco AIR-RM1252G-A-K9
    Plug in either (a) a running 56 volt power supply into the power port, or (b) a Power over Ethernet cable to the PoE port of the Access Point from the "To AP" port of the power injector:
    IOS Bootloader - Starting system. Xmodem file system is available. flashfs[0]: 12 files, 3 directories flashfs[0]: 0 orphaned files, 0 orphaned directories flashfs[0]: Total bytes: 31868928 flashfs[0]: Bytes used: 8743424 flashfs[0]: Bytes available: 23125504 flashfs[0]: flashfs fsck took 19 seconds. Reading cookie from flash parameter block...done. Base Ethernet MAC address: 00:22:90:5d:56:72 button is pressed, wait for button to be released...
    Release the Mode button after 20-30 seconds.
    button pressed for 26 seconds process_config_recovery: set IP address and config to default 10.0.0.1 process_config_recovery: image recovery image_recovery: Download default IOS tar image tftp://255.255.255.255/c1250-k9w7- tar.default
    It should start extracting files from the autonomous image:
    examining image... extracting info (286 bytes) Image info: Version Suffix: k9w7-.124-25d.JA1 Image Name: c1250-k9w7-mx.124-25d.JA1 Version Directory: c1250-k9w7-mx.124-25d.JA1 Ios Image Size: 5765632 Total Image Size: 6533632 Image Feature: WIRELESS LAN Image Family: C1250 Wireless Switch Management Version: 7.0.94.21 Extracting files...

  3. Check the autonomous image is running with no configuration

    When the files finish extracting the access point should automatically reboot:
    Deleting current version: flash:/c1250-rcvk9w8-mx...done. New software image installed in flash:/c1250-k9w7-mx.124-25d.JA1 Configuring system to use new image...done. Requested system reload in progress...download took about 544 seconds
    Further output should bring you to the Press RETURN to get started! prompt. Press the Enter key to get to the ap> prompt:
    Press RETURN to get started! ap>
    Type enable for elevated privileges, and Cisco when prompted for a password. Check there is no left over data using the commands dir and show startup-config and show vlans:
    ap>enable Password: Cisco ap#dir Directory of flash:/ 3 -rwx 76 Mar 1 2002 00:00:08 +00:00 private-multiple-fs 5 drwx 512 Jan 1 1970 00:09:10 +00:00 c1250-k9w7-mx.124-25d.JA1 159 -rwx 129 Jan 1 1970 00:09:25 +00:00 env_vars 9 drwx 448 Aug 7 2012 12:17:06 +00:00 c1250-k9w8-mx.124-25e.JA1 31610880 bytes total (19399168 bytes free) ap#show startup-config startup-config is not present ap#show vlans No Virtual LANs configured.

  4. 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.

  5. End the session.

    Turn off/unplug the device and close PuTTy and the TFTP server.