An electronic apparatus comprising: a touch screen; an optical fingerprint sensor disposed underneath the touch screen; and at least one processor, coupled with the touch screen and the optical fingerprint sensor, configured to perform a fingerprint registration by: displaying a first guide at a first area on the touch screen, the first area at least partly overlapping with a fingerprint sensing region corresponding to the optical fingerprint sensor, identifying a position of a first touch via the touch screen, controlling the touch screen to irradiate light, based on the position of the first touch corresponding to the first area, obtaining, via the optical fingerprint sensor using at least part of the light irradiated by the touch screen, first fingerprint information corresponding to the first touch through the fingerprint sensing region, in response to the first fingerprint information being obtained via the optical fingerprint sensor, obtaining a region of the fingerprint that is missed in the first fingerprint information and displaying, based on the obtained region, a second guide at a second area on the touch screen, the second area at least partly overlapping the fingerprint sensing region, identifying a position of a second touch guided by the displayed second guide via the touch screen, controlling the touch screen to irradiate light, and based on the position of the second touch corresponding to the second area, obtaining, via the fingerprint sensor using at least part of the light irradiated by the touch screen, second fingerprint information corresponding to the second touch, wherein a position of the first area relative to the fingerprint sensing region over which light from the touch screen is to be irradiated is different from a position of the second area relative to the fingerprint sensing region over which light from the touch screen is to be irradiated. a touch screen; an optical fingerprint sensor disposed underneath the touch screen; and at least one processor, coupled with the touch screen and the optical fingerprint sensor, configured to perform a fingerprint registration by: displaying a first guide at a first area on the touch screen, the first area at least partly overlapping with a fingerprint sensing region corresponding to the optical fingerprint sensor, identifying a position of a first touch via the touch screen, controlling the touch screen to irradiate light, based on the position of the first touch corresponding to the first area, obtaining, via the optical fingerprint sensor using at least part of the light irradiated by the touch screen, first fingerprint information corresponding to the first touch through the fingerprint sensing region, in response to the first fingerprint information being obtained via the optical fingerprint sensor, obtaining a region of the fingerprint that is missed in the first fingerprint information and displaying, based on the obtained region, a second guide at a second area on the touch screen, the second area at least partly overlapping the fingerprint sensing region, identifying a position of a second touch guided by the displayed second guide via the touch screen, controlling the touch screen to irradiate light, and based on the position of the second touch corresponding to the second area, obtaining, via the fingerprint sensor using at least part of the light irradiated by the touch screen, second fingerprint information corresponding to the second touch, wherein a position of the first area relative to the fingerprint sensing region over which light from the touch screen is to be irradiated is different from a position of the second area relative to the fingerprint sensing region over which light from the touch screen is to be irradiated. displaying a first guide at a first area on the touch screen, the first area at least partly overlapping with a fingerprint sensing region corresponding to the optical fingerprint sensor, identifying a position of a first touch via the touch screen, controlling the touch screen to irradiate light, based on the position of the first touch corresponding to the first area, obtaining, via the optical fingerprint sensor using at least part of the light irradiated by the touch screen, first fingerprint information corresponding to the first touch through the fingerprint sensing region, in response to the first fingerprint information being obtained via the optical fingerprint sensor, obtaining a region of the fingerprint that is missed in the first fingerprint information and displaying, based on the obtained region, a second guide at a second area on the touch screen, the second area at least partly overlapping the fingerprint sensing region, identifying a position of a second touch guided by the displayed second guide via the touch screen, controlling the touch screen to irradiate light, and based on the position of the second touch corresponding to the second area, obtaining, via the fingerprint sensor using at least part of the light irradiated by the touch screen, second fingerprint information corresponding to the second touch, wherein a position of the first area relative to the fingerprint sensing region over which light from the touch screen is to be irradiated is different from a position of the second area relative to the fingerprint sensing region over which light from the touch screen is to be irradiated.