I just want to ditto the warnings when removing the screen, as this was my first phone repair and I ended up breaking the OLED panel by hitting the corner with an opening pick. Really do not insert the pick very far into the phone especially at the bottom of the screen. The bottom left and right corners have very little clearance to the display glass and electronics.

I found it very helpful to print a picture of the midframe and set the screws on that picture to remember where they go.