UPGrade from 6000MAS to MSL9.1

[ps_tek]

Hi Im new.
I am installing APC and needs to update to MSL9.1 I have the 9.1 iso image burhed to a cd this connected to the usb of 3300cxi when telnet to the APC and reboot the APC there is a
Press F2 for Setup flicking in the bottom of the putty screen. When I press F2 nothing happens.
It stays this way until it boots on the on installed version.
Am I doing something wrong?

[Mitel100]

If you reboot the APC and it boots from the normal load, then it could be one of two things:

1 - Your CD drive is not supported
2 - The CD itself has not extracted properly from the iso to disk