I have a 3640 Router with bootstrap vers 11.1 and IOS 12.1(5) and i must update the modemfirmware form a Firmware at 1998 ver2310-6/31998 to the Firmware c3600-2600-analog-fw.1.2.2.bin .
In the Upgrate Doku is the notice copy with tftp the Firmware to the Flash then reboot the Router.
I do this but i have the old Firmware version on the Modem`s and not the new firmware please Help
Markus Strobl