We started by removing the SIM / SD tray to unlock the back cover of the chassis.
Step 2 Side push buttons
Remove the Phillips screws (PH # 00) that hold the shield to remove it. Then we disconnect the flex from the base plate and take it off the chassis.
Video Tutorial summary
In this video you can watch a quick summary of the tutorial, but we recommend to follow the complete tutorial, with its explanations and detailed images.