Earpiece Speaker
Is your iPhone 4S earpiece speaker malfunctioning or not working at all? If you can't hear the other person on a phone call, the earpiece speaker of the iPhone 4S might be the problem. Replace the iPhone 4S earpiece speaker so you can use your iPhone to listen to phone calls and voicemail again. Replacing the iPhone's earpiece speaker will ensure your iPhone is as loud and clear as when it was new.
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