Heat the connection between the digitizer ribbon’s and LCD Screen's ribbon with a hot soldering to separate the two.

After the connection is seperated, place the digitizer screen on your work surface.

Take the replacement digitizer and place it over the top of the LCD screen.

Align the ribbon of the digitizer and lay it over the LCD ribbon.

Place the solder underneath the digitizer ribbon and above the LCD ribbon; the area you need to solder is silver and at the bottom of the LCD ribbon.

Using the soldering iron, heat up the solder and attach the two ribbons.

Let the solder cool for an hour.