Of course they do, because even if they know based on their internal testing that its a hardware issue, they are going to fight tooth and nail against a recall or doing anything to help the consumers affected. They will never publicly admit wrongdoing. It will likely take a class action lawsuit where they will settle without admitting wrongdoing and each person affected gets a buck fiddy for their troubles. (They will settle because going to court and dealing with discovery means they would be caught knowing this was a problem and hiding it anyway.)
Why? Because capitalists gonna capitalist. They want none of the risk associated with profit and all the profit associated with risk. They want to have their cake and eat it, too.