If you have a different question please start a different thread. This is for your own good: there may be people who can answer this question, but not the one in the thread title, and those people will never see this second question if you add it to the same thread because they won't read this far.
I don't have this phone, don't even know whether it has a portrait mode, so all I can say is that the option should be in the controls of the camera app somewhere.