Follow each step carefully.
Press and hold the side button until the power off slider appears. Slide to power off.
Using a P2 pentalobe screwdriver, remove the two screws located next to the lightning port.
Use a suction cup to gently lift the screen. Insert a plastic opening tool to pry open the device.
Locate the battery connector and use a spudger to gently disconnect it.
Unscrew the screws securing the top speaker and gently lift it out of the device.
Align the new speaker module and secure it with the screws you removed earlier.
Reconnect the battery connector using your fingers or a spudger.
Carefully align the screen and press down until it clicks into place.
Use the P2 pentalobe screwdriver to reinsert the two screws next to the lightning port.
Press and hold the side button until the Apple logo appears.