Before you begin
Follow this guide to remove and replace the loudspeaker (aka lower speaker or bottom speaker) in an iPhone 17 Pro Max. If the sound coming through your iPhone's bottom speaker is faint or crackling, your loudspeaker may need to be replaced. Note: This guide instructs removing the battery as part of the procedure. You can technically leave the battery in, but it'll be a tighter squeeze to get the loudspeaker out.