Cisco Cisco Aironet 350 Wireless LAN Client Adapter

In order to access Cisco Aironet software from the Software Center on Cisco.com, you must fill out a 
form to receive authorization to download encrypted software. Registered Cisco.com users are required 
to fill out the form only once, but public users must do so once each session, each time software is 
downloaded. A form is automatically created for public users. The form for registered Cisco.com users 
is at the following URL:

To minimize the risk of a power failure during the firmware flashing process, which could render your 
client adapter inoperable, Cisco recommends that your computer be plugged into AC power or have a 
fully charged battery at the start of flashing. If a power failure does occur, follow the instructions in the 

 section to contact TAC for assistance.

This section describes how to upgrade to client adapter firmware 5.41.00 on a computer running the 
Windows 2000 or XP operating system.

To find the firmware version that your client adapter is currently using, open ACU and click the Status 
icon. The Firmware Version field on the Status screen shows the firmware version.

Follow these steps to upgrade your client adapter’s firmware to version 5.41.00.

When you upgrade your client adapter’s firmware using ACU, the Automatically Load New Firmware 
When NDIS Driver Is Updated parameter on the Aironet Client Utility Preferences screen becomes 
disabled (or unchecked) automatically to prevent the newly loaded firmware from being overwritten by 
the driver. If you ever want to enable this parameter, you must recheck the check box.

Use the computer’s web browser to access the following URL:

Choose Option #2: Aironet Wireless Software Display Tables.

You can download software from the Software Selector tool instead of the display tables. To do 
so, choose Option #1: Aironet Wireless Software Selector, follow the instructions on the 
screen, and go to 

.

Click Cisco Aironet Wireless LAN Client Adapters.