How the better mode for replace/exchange the glass?

Hello everybody ,

I have one Samsung Galaxy S7 G930FD , and for my deception the screen it broke , but , not broked the display image and touch is regular , now i search the better mode for exchange the glass ...its need open he all?

Thanks

Update 25/08 19:00

removal by heating the front and removal by gold line is reliable?

or breaking the display glass?

Thanks