Take the metal bracket and remove the white paper covering the adhesive on the cushion

Take the blue plastic off the metal bracket

If reusing old bracket, take tesa tape or glue and apply a little amount to both ends where the bracket will adhere to the digitizer

Align the bracket with the cushion to the left and the indent on the bracket in the center of the home button.

Make sure to lift the flex cable gently over the metal bracket before pressing down

Once aligned, and flex cable is placed in the correct position over the bracket, firmly but gently press the 2 sides of the bracket onto the digitizer.