sound

popelka81 wrote:

Are u kidding me?

...

Since the Mute/Silent switch on the side is mechanical, it might fail without you noticing.

To rule out a software issue, set your phone back to factory settings, using your computer.

Then set it up manually, without using the backup see if you can use the speaker at the bottom of the iPhone after that. If it is still not working after that, this is a hardware issue and the phone has to be serviced.

Restore your iPhone, iPad, or iPod to factory settings - Apple Support

If it works again, restore from the latest backup to get all your data and settings back.

Did you already check the Ring/Silent switch on the side of the iPhone?

Can you use the speaker while on a call?

Any Bluetooth earphones connected to your iPhone?

Did you try to force restart your iPhone?

Force restart iPhone - Apple Support