replacement of equipment

Greeting, my name is ellis i have a problem which I face this problem a lot of time whenever I open my camera it work and then I switch to portrait mode it get shut down itself help me.

No equipment remains as it is forever. There is always a life span for every equipment and for the fact that production must continue as long as the organization is in existence, this call for proper planning of the replacement of the equipment against it unproductive old age. Equally...