viaccess cam upgrade



I have a red viaccess cam and a gold card. I upgraded the cam by the receiver (humax 5400). After the upgrade all the channels I used to watch stopped. The details after the upgrade:

Viaccess 1.0 v483
Application V1.05.001
Manufacturer : SCM Microsystems

Can somone tell me how to fix the problem. Is it a cam problem or I need to program the card.

Many thanks for any answer or guidence to a website to fix my problem.