Audio sounds muffled on iPhone XR

If you already tried (to no avail) all the steps provided in this support article:--> If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker , I suggest that you contact Apple Support directly, using this specific link:--> https://getsupport.apple.com/?caller=topartmgs , or make an appointment (*) and have your device inspected at an Apple Store or AASP (Apple Authorized Service Provider) among this list:--> https://locate.apple.com/choose-country-region . After checking it out, they'll give you all the available options.

Regards

Giulio

(*) You can do it:

• Online:--> Genius Bar Reservation and Apple Support Options - Apple;
• Contacting a local Apple Store or AASP among the list provided above;
• Using the "Apple Store" app, available and downloadable from AppStore.

Same issue. It's just worn out or blown out. The XR was always the sub or lower quality version of the X generation of phones. The speakers were never as good as the regular X versions and after years of use if you compare it to other and newer versions of iphone its really bad. Speaker repair might get expensive if you don't have apple care. But you should always try a restartyour phonw, followed by a hard reset - Press and quickly release the volume up button. Press and quickly release the volume down button. Press and hold the side button. When the Apple logo appears, release the side button. And then contact customer service and they will walk you through a factory reset. Best bet, go into an Apple store, if you can, and check trade-in value of you device with out mentioning speaker issues.