We had the same problem upgrading the firmware on our 7965's & -7945's - authentication error and all. We had to load version SCCP45.8-5-2S first, then load version SCCP45.9-0-3S.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.