[cisco-voip] Uninstalling Phone Firmware

[Bill Simon]

Delete the firmware files from the TFTP server(s) and change the load 
defaults in Call Manager back to the previous firmware version.  Then 
restart all the devices that use that firmware to revert to the old.

svr.file at gmail.com wrote:
> Hi All,
> 
> I have a quick question. Is there anyway to uninstall a phone firmware 
> in Call Manager 4.1.2 as we have installed the wrong version.
> 
> We want to completely remove the firmware we installed?