User receives the error message "Interface Dot11Radio0, no radio firmware file" while upgrading the firmware in Access point.
This is an example of the error message:
Error message : Interface Dot11Radio0, no radio firmware file (flash:/c1200-k9w7-mx.122-13.JA1/5100.img) was found.
This error message appears when trying to Flash a new firmware into the radio and the file for the radio was not found in the Flash. This is because a wrong image has been loaded into the unit .You must locate the correct image based on the type of radio used .
You may also get this error message if the IOS on the access point is corrupt. You can reload the access point (AP) image to factory defaults. The most convenient way is to use the mode button reload option.
Reloading the Access Point Image
If your access point has a firmware failure, you must reload the complete access point image file using the Web browser interface or by pressing and holding the MODE button for about 20 to 30 seconds. You can use the browser interface if the access point firmware is still fully operational and you want to upgrade the firmware image. However, you can use the MODE button when the access point has a corrupt firmware image.
Using the MODE button
You can use the MODE button on the access point to reload the access point image file from an active Trivial File Transfer Protocol (TFTP) server on your network or on a PC connected to the access point Ethernet port.
Note If your access point experiences a firmware failure or a corrupt firmware image, indicated by three red LEDs, you must reload the image from a connected TFTP server.
Note This process resets all configuration settings to factory defaults, including passwords, WEP keys, the access point IP address, and SSIDs.
Follow these steps to reload the access point image file:
Step 1 The PC you intend to use must be configured with a static IP address in the same subnet as the access point.
Step 2 Place a copy of the desired access point image file (such as c1100-k9w7-tar.123-8.JA.tar) into the TFTP server folder on your PC. For additional information, refer to the "Obtaining the Access Point Image File" and "Obtaining the TFTP Server Software" sections.
Step 3 Rename the access point image file in the TFTP server folder to c1100-k9w7-tar.default.
Step 4 Activate the TFTP server.
Step 5 Connect the PC to the access point using a Category 5 (CAT5) Ethernet cable.
Step 6 Disconnect power (the power jack for external power or the Ethernet cable for in-line power) from the access point.
Step 7 Press and hold the MODE button while you reconnect power to the access point.
Step 8 Hold the MODE button until the status LED turns red (approximately 20 to 30 seconds), and release the MODE button.
Step 9 Wait until the access point reboots as indicated by all LEDs turning green followed by the Status LED blinking green.
Step 10 After the access point reboots, you must reconfigure the access point by using the Web interface, the Telnet interface, or Cisco IOS commands.