万一灌错了固件的版本，或者是文件本身已顺坏造成AP无法正常启动，可以按照以下步骤恢复：

Step 1The PC on which your TFTP server software runs must be configured with a static IP address in the range of 10.0.0.2 to 10.0.0.30.

Step 2Make sure that the PC contains the access point p_w_picpath file (such as c1200-k9w7-tar.122-15.JA.tar for a 1200 series access point) in the TFTP server folder and that the TFTP server is activated.

Step 3Rename the access point p_w_picpath file in the TFTP server folder to c1200-k9w7-tar.default for a 1200 series access point.

Step 4Connect the PC to the access point using a Category 5 (CAT5) Ethernet cable.

Step 5Disconnect power from the access point.

Step 6Press and hold the MODE button while you reconnect power to the access point.

Step 7Hold the MODE button until the status LED turns red (approximately 20 to 30 seconds), and release the MODE button.

Step 8Wait until the access point reboots as indicated by all LEDs turning green followed by the Status LED blinking green.

Step 9After the access point reboots, reconfigure the access point using the GUI or the CLI.