If so, then:

If Step 3 is done correctly, the AP's bootloader will send out a broadcast TFTP request. It will look for a file named c1240-k9w7-tar.default at IP address 10.0.0.2.

The search term refers to a specific firmware image for the Cisco Aironet 1240 Series Go to product viewer dialog for this item.

“To open the hatch. Now I’m giving you three seconds to decide. Help me pilot this thing out of the blast zone. Or blow it here. But if you blow it—you die with the truth.”

A TFTP server (e.g., SolarWinds, Tftpd64) installed on your workstation. A console cable. Terminal emulator software (Putty, Tera Term). The AP connected to the same subnet as the TFTP server. 2. Prepare the TFTP Server

For more technical documentation, consult the Cisco Aironet 1240 Series Support page.