To fix difficult-to-operate blinds, peer inside the head rail, which is the long metal piece at the top of the blinds that holds them, and locate the square metal pieces or friction clips connected to the track. Remove one or all of the friction clips if the blinds are difficult to operate. This should solve the problem. Lightly pull down on the bottom rail or long metal piece at the bottom of the blinds to reactivate spring if blinds will not lift. Release the cord lock if blinds will...