Cisco Cisco Wireless Services Module 2 (WiSM2)

When you upgrade to the latest software release, the software on the access points associated with the 
controller is also automatically upgraded. When an access point is loading software, each of its LEDs 
blinks in succession. Up to 10 access points can be concurrently upgraded from the controller.

The Cisco 5500 Series Controllers can download the 7.1.91.0 software to 500 access points 
simultaneously.

Do not power down the controller or any access point during the upgrade process; otherwise, you 
might corrupt the software image. Upgrading a controller with a large number of access points can 
take as long as 30 minutes, depending on the size of your network. However, with the increased 
number of concurrent access point upgrades supported in software release 4.0.206.0 and later, the 
upgrade time should be significantly reduced. The access points must remain powered, and the 
controller must not be reset during this time.

Do not install the 7.0.116.0 controller software file and the 7.0.116.0 ER.aes boot software file at 
the same time. Install one file and reboot the controller; then install the other file and reboot the 
controller.

If you want to downgrade from 7.1.91.0 release to a previous release, do either of the following:

Psion 7535/WinCE 5.0 

1.02.09

Psion WAP/WinCE 5.0 

1.02.42

Symbol 8846/Pocket PC 4.20 

2.4.2273

Symbol MC70 /Windows Mobile 5.0

3.0.0.226

Symbol MC9060/Pocket PC 4.2 

3.1.7

Symbol MC9090/WinCE 5.0

3.1.7 

Ascom i75

1.4.25 

Nokia e61

3.0633.09.04

Spectralink 8030 

104.025 

Spectralink e340/PTE110 

110.036/091.047/104.025 

Spectralink i640/PTX110 

110.036/091.047/104.025 

Vocera B1000A 

4.1.0.2817 

Vocera B2000 

4.0.0.269 

Zebra QL320 

HTNVK49s 

Monarch 9855 

3.2AB

Cisco 7921G

CP7921G-1.3.4.LOADS

Cisco 7925G

CP7925G-1.3.4.LOADS