Hi and welcome to the forum.
Sorry to learn this is an issue for you, however if you purchased this recently, you don't attempt to fix it yourself, you get it sorted under warranty with Canon or the vendor.
cheers, TREVOR
Before you ask us, have you looked in the manual or on the Canon Support Site?
"All the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris
