I recently replaced a customer’s home button and digitizer on his iPad 7th Generation, but the home button does not work...

Press and quickly release the volume up button. Press and quickly release the volume down button. Then, press and hold the side button until you see the recovery mode screen. You will then need to connect your iPhone to your Mac or PC and open iTunes and when prompted press restore. If that does not work you may have a bad battery. Hope this helps! Edit: You should not need the panic log to solve this problem FYI. Owen

Hello Anthony the location of the microphone is shown in the image below, if you are planning to tear it down it would be in your bottom right corner assuming you opened the camera from the back. Hope this helps! Owen