Remove the earpiece speaker.

Check the condition of the adhesive around the bottom of the earpiece speaker when you reinstall it. A little heat from a hair dryer or iOpener can help soften the adhesive and make it sticky again. Be careful not to touch or damage the surface of the speaker.

In some of the previous photos in this guide, the speaker is shown installed incorrectly. During installation, make sure the speaker's two spring contacts are located at the bottom corners, as shown in the first image in this step. Images showing the speaker rotated 180° (with the spring contacts near the top edge of the phone) are incorrect.